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Kiyoshi Kawade, Akira Hiei, Hiroshi Yamamoto, Susumu Amemiya, Toshio K ...
1974 Volume 36 Issue 5 Pages
1221-1229
Published: May 15, 1974
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Beta- and gamma-rays emitted in the decay of
170Ho isomers have been studied with Ge(Li), NaI(Tl) and plastic detectors. Sources were prepared by the
170Er(n, p)
170Ho reaction with about 15 MeV neutrons. Fifty γ-rays have been observed and thirty-six of them are assigned to the
170Er level scheme including seven new levels at 1010.5, 1217.3, 1900.5, 1982.6, 2039.3, 2684.8 and 3606.2 keV. The most probable spin assignments of 1
± and 4
± are proposed for the 43 sec and 2.8 min
170Ho, respectively. Both
Qβ values are 4.0±0.2 MeV. The
K=0 assignment for the 2
+ state at 959.8 keV is proposed from the E2 branching rations to the ground-state band. It is found that the relative
B(E2) values from γ-vibrational band can not be explained by a single value of the band mixing parameter
z2.
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Saburo Homma, Akifumi Itano, Koichiro Nishikawa, Masaki Hayashi
1974 Volume 36 Issue 5 Pages
1230-1235
Published: May 15, 1974
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The differential cross section for the lepton trident production in the Coulomb field of nucleus is calculated using a standard technique of quantum electrodynamics. Eight diagrams are taken into account in calculation. Cross section formula in the text is expressed in the form which is most suitable for any type of numerical calculation. Since the formula is expressed in order to make the calculation of individual diagram possible, one can easily evaluate the contribution of certain diagram to the cross section at a given experimental geometry. Propagator terms are expressed separately from the others making the modification of this part possible. Numerical calculation of the formula at a given experimental geometry shows a complete agreement with the one of the formula derived independently by Henry.
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Hajime Ohnuma, Teruo Suehiro, Masayuki Sekiguchi, Satoshi Yamada
1974 Volume 36 Issue 5 Pages
1236-1244
Published: May 15, 1974
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The
58Ni(p, d)
57Ni reaction was studied at
Ep=51.93 MeV with a magnetic spectrometer. Experimental results and spectroscopic information obtained are presented.
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Hajime Ohnuma, Teruo Suehiro, Masayuki Sekiguchi, Satoshi Yamada
1974 Volume 36 Issue 5 Pages
1245-1253
Published: May 15, 1974
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Angular distributions for the
58Ni(p, d)
57Ni reaction at
Ep=51.93 MeV are analyzed using the distorted wave Born approximation theory and the adiabatic theory for the deuteron breakup. Parameter dependence of the calculated results is investigated in detail. Modification of low-partial wave contributions is required to obtain reasonable fit with DWBA. well-radius description in the form factor calculation is found to show general superiority to conventional well-depth description.
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Masaharu Yasue
1974 Volume 36 Issue 5 Pages
1254-1260
Published: May 15, 1974
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The
9Be(p, p
1)
9Be
*(1.67) reaction is studied in the energy range of protons from 4.2 to 5.5 MeV. Fits of the p
1 energy spectra to Watson-Migdal’s theory show the value of scattering length between a neutron and
8Be to be about −20 fm, except at
Ep=5.1 MeV, where it is about −30 fm. Analysis with W–M theory shows that the anomaly in the value of the scattering length around
Ep=5.1 MeV is due to the overlapping of final state interactions between a proton, a neutron and
8Be nucleus.
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Kohichi Ohta
1974 Volume 36 Issue 5 Pages
1261-1265
Published: May 15, 1974
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Behavior of pions propagating in nuclear matter is investigated, the nucleus being described as a coupled system of nucleons and pions. Particular attention is paid to the particle-hole collective excitation. Based on the modified pion propagator, the pion-nucleus scattering and the effective internucleon potential are discussed.
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Minoru Adachi, Toshiyuki Hattori, Eiichi Arai, Masao Ogawa, Haruo Sato ...
1974 Volume 36 Issue 5 Pages
1266-1272
Published: May 15, 1974
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The g
9⁄2 isobaric analogue state (IAS) in
61Cu has been investigated by the
60Ni(p, p)
60Ni and (p, γ)
61Cu reaction using high energy-resolution (overall
ΔE\simeq350 eV) proton beams. Resonances at
Ep(lab.)=3723, 3732, 3737 and 3743 keV are identified as fragments of the IAS of the g
9⁄2 state in
61Ni. Proton widths and radiative widths of these isobaric analogue resonances (IAR’s) are deduced using a multi-level R-matrix code. Gamma ray spectra and γ-ray angular distributions from these IAR’s have been measured with a Ge(Li) detector. Primary γ-ray branching ration are presented. The IAS to anti-IAS (AIAS) M1 transition strength is deduced to be 0.36±0.08 W.U. and is compared with a simple shell model prediction.
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Kêitsiro Aizu
1974 Volume 36 Issue 5 Pages
1273-1279
Published: May 15, 1974
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In the preceding paper [K. Aizu: J. Phys. Soc. Japan
35 (1973) 1704] a group-theoretical interpretation was made of faintness index of a degenerate set of soft vibrational modes. In the present paper firstly the concept of “situations of a ferroic” is studied and then a group-theoretical interpretation is made of faintness index of a ferroic phase in one situation. A few examples are presented.
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Hatsuo Kimura
1974 Volume 36 Issue 5 Pages
1280-1287
Published: May 15, 1974
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A theory of nematic ordering in liquid crystals has been developed. The method of symmetry-breaking potential and a first-order cluster expansion technique for the partition function are employed. The obtained results agree with those of the Onsager-Isihara (for hard rods) and of the Maier-Saupe (for dispersion forces) theories in respective limiting cases. The nematic order parameter is calculated as a function of temperature and density of liquids; the calculated values agree very well with the experimental ones on nematic para-azoxyanisole for the pressure range from 1 to 640 bar. The nematic-isotropic transition temperature
Tc is calculated as a function of the density and shape of molecules (length, breadth and their ratio). The theory provides good explanations, at least qualitatively, of behavior of
Tc for various homologous series of nematic liquid crystals.
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Tomoji Yamada
1974 Volume 36 Issue 5 Pages
1288-1291
Published: May 15, 1974
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At low temperatures it is shown theoretically that there exist the singular terms in the magnetic susceptibility of the antiferromagnetic Heisenberg linear chains with spin
S=1⁄2. Furthermore, a discussion is made in analogy with the critical phenomena. The free energy which describes the properties of the present system is composed of two parts: The regular and the singular parts. The singular terms in the magnetic susceptibility come from the latter part.
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Toshinobu Soma
1974 Volume 36 Issue 5 Pages
1292-1300
Published: May 15, 1974
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The compressibility problem of Brovman and Kagan is discussed and examined numerically. The issue of the problem is that the two methods of the calculation of the elastic constants in terms of the second order perturbation based on the same pseudopotential do not give the identical result. One is the method of the static homogeneous deformation. The other is the dynamical long-wave phonon method within the two body central potential approximation. Although the conventional dynamical method, which adopts the zero pressure from the static method, yields the required violation of the Cauchy relation, the difference between the elastic constants obtained from the two methods still persists. The compressibility problem is shown to be important for alkali metals and significant for Al and Pb.
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Toshinobu Soma
1974 Volume 36 Issue 5 Pages
1301-1303
Published: May 15, 1974
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Lattice vibration spectra in α-Sn are calculated in terms of extended perturbation theory based on pseudopotentials. One adjustable parameter, which is related to the uncertainty for higher order corrections, gives better agreement with experimental data.
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Takemi Yamada, Osamu Nakanishi
1974 Volume 36 Issue 5 Pages
1304-1314
Published: May 15, 1974
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The kinetic exchange mechanism in Anderson’s theory of super-exchange is formulated for the case of Co
2+ ion-pairs in CoO. The exchange interaction depends on the orbital angular-momentum operators as well as on the spin operators. The nearest neighbor interaction is shown to be largely anisotropic. The coefficients of the exchange interaction are estimated with the following parameters: Mattheiss’APW result and its modification for the transfer integrals, Anderson’s value for the effective Coulomb integral, and the experimental values for the intra-ionic exchange integral and the crystalline field splitting. The estimated values should be correct at least in order of magnitude on account of the fact that the came procedure in the cases of NiO and MnO give result in fairly good agreement with the experimental result. The potential exchange in CoO is also discussed.
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Osamu Nakanishi, Takemi Yamada
1974 Volume 36 Issue 5 Pages
1315-1321
Published: May 15, 1974
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The problem of alternative magnetic structure in CoO, the collinear structure or the multi-spin-axis structure, is discussed in connection with the origin of the large tilt angle of spin axes observed by neutron diffraction. Magnetic anisotropy energies from the orbital-momentum dependent exchange interaction in the two model structures are estimated and compared with the other contributions from Kanamori’s mechanisms. It is shown that the spin axes can tilt by a large angle only in the collinear structure in virtue of a cancellation of the two contributions, one from the tetragonal deformation of the lattice and the other from the kinetic exchange. The situation is reversed in the multi-spin-axis structure. The multi-spin-axis model is therefore rejected from a theoretical point of view.
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Takeshi Kanomata, Hideaki Ido
1974 Volume 36 Issue 5 Pages
1322-1324
Published: May 15, 1974
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The temperature dependence of the lattice constants of CuCr
2X
4 (X=S, Se and Te) was determined in a temperature range from 100 to 700 K by an X-ray diffraction technique. The specific heat of CuCr
2Se
4 was also measured. The temperature dependence of the exchange strictions of CuCr
2X
4(X=S, Se and Te) was estimated from these results. Based on the molecular field theory proposed by Bean and Rodbell, we estimated the pressure coefficients of the Curie temperature to be −1.1×10
−3, −0.4×10
−3 and 0 deg. cm
2/kg for CuCr
2S
4, CuCr
2Se
4 and CuCr
2Te
4, respectively, which were in agreement with the values obtained by direct measurements.
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Masayuki Ido, Ryosuke Hoshino
1974 Volume 36 Issue 5 Pages
1325-1329
Published: May 15, 1974
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In a metallic fine particle, the surface effect on electronic properties should be important. NMR lines of Cu fine particles with the average size from 70 to 600 A were observed. The lines show the broadening which depend on a particle size, magnetic field and temperature. It is shown here that the broadening is due to the distribution of the Knight shifts which may be caused by the spatial fluctuation of the electronic spin polarization in the surface region.
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Masahiko Yamamoto, Masaaki Futamoto, Soji Nenno, Shogo Nakamura
1974 Volume 36 Issue 5 Pages
1330-1338
Published: May 15, 1974
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A simple method of determining the type of domains in the FIM images of ordered Ni
4Mo (β) alloy is presented. The following features are taken into account along with the crystallographic relations: namely (i) the BCT symmetry, (ii) {111}
FCC dark regions and 〈110〉
FCC dark bands, (iii) the relative size of ring steps of poles, (iv) the arrangement of bright spots in (hkl)
BCT plane, and (v) the number of net ring steps between two poles.
The above method has been successfully applied to determining the type of domains on FIM images of Ni
4Mo alloy ordered to various degrees.
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Hideoki Murakami, Sho Yoshida
1974 Volume 36 Issue 5 Pages
1339-1348
Published: May 15, 1974
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The probability of the diffusing away of vacancies from the faulted loop has been calculated using the diffusion equation of vacancies under the effects of the permanent sinks and it has been clarified that the probability increases with decreasing the density of jogs on faulted loops and the distance from the faulted loop to the grain boundary, and it decreases with decreasing the void density.
The annihilation processes of faulted loops in quenched aluminum have been experimentally studied, and it has been shown that the experimental results can be easily explained from the idea that the shrinkage speed of the faulted loop is proportional to the product of the emission rate and the diffusing away probability of vacancies from the faulted loop.
The value of the stacking fault energy is estimated to be 130±30 erg/cm
2 from the shrinkage speed of the faulted loop in a thin foil.
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Kazuhiko Yasohama, Takeshi Ogasawara
1974 Volume 36 Issue 5 Pages
1349-1355
Published: May 15, 1974
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The low temperature specific heat of bcc alloys of zirconium base Zr–Mo has been measured in order to investigate their superconducting properties. It was observed that the small addition of molybdenum to zirconium results in a steep rise of the electronic specific heat coefficient, γ, and a decrease of the Debye temperature, θ
D. From the knowledge of γ and θ
D the variation of the superconducting transition temperature,
Tc, of zirconium concentration was analyzed with the McMillan theory, and it is suggested that an enhancement of
Tc due to the small addition of molybdenum may be ascribed to the sharp rise of the electronic density of states at the Fermi surface.
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Katsumi Shimada, Mario Yokota
1974 Volume 36 Issue 5 Pages
1356-1364
Published: May 15, 1974
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The melting point versus volume relation is given by a functional of the Grüneisen constant which has a large weight for
T1 shear vibrational mode.
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Kenji Uchida, Masao Tomura
1974 Volume 36 Issue 5 Pages
1358-1364
Published: May 15, 1974
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Fluorescence decay times of naphthalene crystals were observed pulsively and their temperature dependence was analyzed with a mechanism of violated forbidden transition by molecular vibration. Fluorescence decay times of anthracene and naphthacene doped crystals were also observed by a pulsive method and the probabilities of energy transfer from singlet excitons to doped acceptors were observed. The probabilities of energy transfer were analyzed with a model that diffusing excitons transfer their energy to acceptors by dipole-dipole interactions. From the temperature dependence of the probabilities the diffusion coefficient
D of an exciton was determined as
1⁄
D=1⁄α′
T−1⁄2+1⁄β
T1⁄2{exp(
hν⁄
kT)−1},
where ν is the frequency of the longitudinal optical phonon. This result means that the transport effective mass of exciton is constant in the exciton band of a naphthalene crystal. Above 250 K, the temperature dependence of energy transfer was analyzed with a thermal activation process of the excited acceptor by an exciton.
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Yasuo Sakisaka, Takehiko Ishii, Takasi Sagawa
1974 Volume 36 Issue 5 Pages
1365-1371
Published: May 15, 1974
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The fundamental absorption spectra of the chlorides and the bromides of manganese, iron, cobalt, and nickel have been measured over the range from 2 to 40 eV. Fine structures occurring below 10 eV very as the transition metal changes. Spectral profiles above 10 eV are simple and alike among the halides of different transition metals. Peaks located at the absorption edge shift systematically toward high energy from nickel halides to manganese halides, and are ascribed to the charge transfer transition from the outermost p orbitals of halogen to the unoccupied 3d orbitals of the transition metal. Comparison with soft X-ray absorption spectra suggests that the transitions from the outermost p orbitals of halogen to the 4
s orbitals of the transition metals produce peaks around 8 eV. Some of the other structures in the spectra are discussed.
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Yasuo Sakisaka, Takehiko Ishii, Takasi Sagawa
1974 Volume 36 Issue 5 Pages
1372-1376
Published: May 15, 1974
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The energy spectra of valance electrons photoemitted by excitation with X-rays have been measured on the chlorides and the bromides of nickel, cobalt, iron, and manganese. The profiles of the spectra obtained by deconvoluting raw data with a measured instrumental response function show structures representing the energy dependence of the state-densities of 3d electrons of metal ions. The structures in the spectra are qualitatively in terms of the molecular orbital energy levels. Variations in the spectral profiles among different materials are discussed in connection with the fundamental optical absorption spectra.
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Wataru Sasaki, Seiichiro Ikehata, Shun-ichi Kobayashi
1974 Volume 36 Issue 5 Pages
1377-1382
Published: May 15, 1974
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NMR line shape, Knight shift and relaxation time are measured on
29Si and
31P in silicon with phosphorus concentrations ranging from 3.4×10
17cm
−3 to 9.6×10
19cm
−3 over a temperature region from 0.4 to 4.2 K. The behaviors of these absorption lines are shown to correspond to the three types of impurity conduction. These behaviors are discussed in connection with the metal-nonmetal transition and random nature of the system. The result in metallic samples is interpreted in terms of the electron gas with correlation.
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Masaya Yabe
1974 Volume 36 Issue 5 Pages
1383-1389
Published: May 15, 1974
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The effect of γ-irradiation at liquid nitrogen temperature on the low temperature internal friction of compressed LiF crystals was studied by the ultrasonic pulse method at a frequency of 10 MHz. The internal friction is increased substantially in compressed LiF after a 5.8×10
6 r dosage of γ-rays at liquid nitrogen temperature. It was noted that this enhanced internal friction decreases during isochronal annealing at a low linear rate between 83 K to 110 K. The kinetics of this annealing process is analyzed. It is concluded that a fraction of the
H centers introduced in LiF by the γ-irradiation diffuse to dislocations with a migration activation energy of 0.138±0.004 eV. The
H center appears to pin the dislocation in the temperature region between 83 K and 110 K.
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Shunya Ishioka
1974 Volume 36 Issue 5 Pages
1390-1395
Published: May 15, 1974
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The Peierls stress of a screw dislocation in a diamond lattice is studied. The potential between neighbouring atomic rows is assumed to be made of three parabolas which are smoothly connected with one another. The Peierls stress and energy obtained by exact calculation are extremely sensitive to the anharmonic part of the potential. It is shown that the dislocation is able to take the asymmetric configuration under no external force in spite of the symmetric inter-atom-row potential.
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Satoshi Tanaka
1974 Volume 36 Issue 5 Pages
1396-1405
Published: May 15, 1974
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A theory of X-ray diffraction from polymer crystals accompanying with thermal disorders is developed under harmonic approximation. Temperature factor based on the displacement in the radial direction (in cylindrical coordinates) is given in terms of modified Bessel functions. A new selection rule which depends on thermal vibrational mode is derived, so that it is shown that the strong diffuse streak scattering appears on
N0-th layer line (
N0 is the number of turns of the helix in its repeat unit), when interaction energies between polymer chains are weak enough.
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Jun Kondo
1974 Volume 36 Issue 5 Pages
1406-1408
Published: May 15, 1974
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We present a quantum mechanical calculation of excitation probability of a fast ion passing through a crystal, when ion’s excitation energy
ΔE satisfies Okorokov’s condition
ΔE=
hv⁄
a (
h: Planck’s constant,
v: the velocity of the ion,
a: the atomic distance of the crystal). We find that the probability is a sinusoidal function of the distance and can reach unity, when the ion beam is mono-energetic. The wave length of the sinusoidal function is determined by the (low-order) Fourier component of the periodic potential of the crystal, thus providing us with a method to measure the latter experimentally.
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Ryuzo Koyama
1974 Volume 36 Issue 5 Pages
1409-1417
Published: May 15, 1974
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The angular distribution of scattered light-intensity by the stiff chain polymers having finite cross sections is calculated by assuming two kinds of theoretical models. The first model assumes the spherically symmetric distribution of each scattering element around its center of distribution on the chain axis, and the second model assumes its planar and symmetric distribution in the plane perpendicular to the chain axis.
The result of scattering function
P(θ) becomes
P(θ)=(1−
K〈
u2〉σ
2)
P0(θ)+···,
σ=(4π⁄λ)sin(θ⁄2),
K=1⁄2∼1⁄3,
where
P0(θ) is the scattering function in case of no cross section, and 〈
u2〉, θ and λ are the mean square radius of gyration of chain cross section, the scattering angle and the wave length of light, respectively.
The effect of chain expansion on this
P(θ) by the excluded Volume effect is also calculated from the same assumption as that used in the previous paper (J. Phys. Soc. Japan
34 (1973) 1029).
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U. S. Tewari, P. Vasudevan, V. Ramakrishna
1974 Volume 36 Issue 5 Pages
1418-1422
Published: May 15, 1974
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The viscosities of ONT(f.p. −3.0°C) and MNT (f.p. 16.0°C) melts have been determined in the temperature range −12.0° to 45°C. The results follow an Arrhenius behaviour in the high temperature region. In the supercooled region also an Arrhenius equation with different values of Arrhenius parameters is obeyed. Volume fraction of cluster φ, has been calculated in the supercooled region. Equilibrium costant for the equilibrium (
Remark: Graphics omitted.) is also reported. The results do not indicate hindered rotation of the ONT and MNT molecules in the supercooled region.
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Yukio Yamamoto, Kiyoshi Yatsui
1974 Volume 36 Issue 5 Pages
1423-1427
Published: May 15, 1974
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The interaction of transversely modulated electron beam with axially magnetized plasma is studied experimentally from a view point of ion heating. When the modulation frequency almost coincides with the ion cyclotron frequency, considerable heating of ions is observed up to 40 eV. This type of ion heating is found to be very effective in directions perpendicular to the axial magnetic field. At magnetic beach, the excited waves tend to decay strongly and the associated heating of ions occurs as a result of the cyclotron resonances with atomic- and molecular-ions. The ion heating observed in the present study seems to be due to the cyclotron damping of the ion cyclotron waves excited intensively in the beam-plasma system.
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Shin’ichi Katayama, Isaaki Yokota
1974 Volume 36 Issue 5 Pages
1428-1436
Published: May 15, 1974
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Magnetoplasma excitations in Voigt configuration are investigated by means of normal mode analysis. It is proved that the dynamical self-consistent field approximation is equivalent to RPA plus replacing the double integral appeared in the Coulomb interaction with the product of two single integrals with an appropriate factor. The expressions for the photon strengths, for the
f-sum and for the dynamical from factors are derived by the use of the normal mode operators. When the cyclotron frequency is of the same order of magnitude as the plasma frequency realizable in highly doped semiconductors, several interesting features are found in excitation spectra. Contributions to the
f-sum, to the photon strength, and to the dynamical from factor from each of the normal modes are numerically calculated.
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Toshio Tange, Setsuo Ichimaru
1974 Volume 36 Issue 5 Pages
1437-1445
Published: May 15, 1974
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General expressions for the d.c. resistivity and the heating rates of the electrons and the ions are obtained in terms of the spectral functions of particle correlation functions; the results are rigorous and applicable to both quiescent and turbulent plasmas. The method of analysis is based on the moment calculations of the first equations of the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy for a multicomponent plasma. Definite predictions are made on the relative magnitudes of the electron and ion heating rates when the nature of the turbulent fluctuations is known. Some of the well-known formulas for the anomalous resistivity are obtained as specific cases of the present calculation. It is shown that a consideration of the critical fluctuations alone cannot account for the anomalous resistivity in a turbulent plasma.
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Yoshinori Inoue, Yasuji Matsumoto
1974 Volume 36 Issue 5 Pages
1446-1455
Published: May 15, 1974
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A wide class of nonlinear partial differential equations describing wave propagation in dispersive media is studied by using a method of multiple scales. It is investigated at first how the amplitude of a plane wave modulates itself in far-field. the result of the analysis shows that the system of equations may be classified into three types. For the case of the type 1 and the type 2A systems, the original system of equations can be reduced to a tractable single equation—a nonlinear Schrödinger equation. On the other hand, for the type 2B system, any simple reduced system cannot be obtained. Next investigated is the nonlinear modulation resulting from interactions between a plane wave and a slowly varying wave for the type 2A and the type 2B systems. It is found that such a nonlinear modulation shows a very different nature from each other for these two systems.
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Akio Fukuyu
1974 Volume 36 Issue 5 Pages
1456-1463
Published: May 15, 1974
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Two-dimensional viscous flow due to the motion of a semi-infinite flat plate moving perpendicular to its own plane in a region of fluid bounded by a rigid plane well is considered by means of the Stokes approximation. The stream function, being biharmonic, can be constructed by use of two harmonic functions. By mapping the flow region conformally onto the upper half of a complex plane, the problem can be reduced to determining the harmonic functions in this plane. From the first and second approximate solutions are obtained a lower and an upper bound, respectively, of the discharge of fluid through the gap between the plate and the well. The case in which the semi-infinite plate is held at rest and the flow is caused by the pressure difference through the gap is also considered.
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Shigeo Kida
1974 Volume 36 Issue 5 Pages
1464-1470
Published: May 15, 1974
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The motion of two rotating circular cylinders is investigated as a model of two vortex tubes. The case in which the radii of the cylinders are much smaller than their mutual distance is considered, and the flow field around a cylinder induced by another is approximated by that induced by a line vortex. The motion of the cylinders is shown to be a superposition of two different motions: One is a motion which would be realized if two cylinders were replaced by two line vortices, and the other is a small oscillation about it. Since the latter motion is merely as oscillation, the motion of two cylinders of finite radii does never deviate substantially from that of two line vortices.
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Hedeaki Takagi
1974 Volume 36 Issue 5 Pages
1471-1473
Published: May 15, 1974
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Bipolar coordinates are employed to calculate, on the basis of the stokes creeping motion equations, the hydrodynamic force experienced by a solid sphere fixed in an axisymmetric stagnation flow near a rigid plane surface to which fluid adheres, or near a planar free surface on which the tangential stresses vanish. Numerical results are given for various ratios of the sphere radius to the distance of its centre from the plane.
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Akira Yoshizawa
1974 Volume 36 Issue 5 Pages
1474-1479
Published: May 15, 1974
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An analysis is made of unsteady viscous flow induced by the impulsive motion of a finite flat plate, parallel to its length. The present paper is concerned with the flow period in which the steady Blasius flow is developing near the leading edge and the Rayleigh flow still remains on a large portion of the plate. A solution of the Navier-Stokes equations near the leading edge is constructed by means of matched asymptotic expansions, with the Blasius solution as a leading term.
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Akira Yoshizawa
1974 Volume 36 Issue 5 Pages
1480-1484
Published: May 15, 1974
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An analysis is made of unsteady viscous flow induced by the impulsive start of a finite flat plate, parallel to its length. The present paper is concerned with the final period in which the steady Blasius flow has been realized on the plate already. An asymptotic solution of the Navier-Stokes equations is constructed, with the Blasius solution as a leading term. A numerical discussion is made of the present solution for the final period and a solution previously obtained for the intermediate period, in the neighborhood of the leading edge.
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Toshio Aoi, Jun Takeuchi, Yoshika Masuda
1974 Volume 36 Issue 5 Pages
1485
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Masaru Matoba, Mikio Hyakutake, Kosuke Yagi, Yasuo Aoki, C. Rangachary ...
1974 Volume 36 Issue 5 Pages
1486
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Kazu Nishigaki, Yoshiro Saji
1974 Volume 36 Issue 5 Pages
1487
Published: May 15, 1974
Released on J-STAGE: June 01, 2007
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Takeshi Hiraoka, Tsutomu Fuchikami
1974 Volume 36 Issue 5 Pages
1488
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Tsukio Ohtani, Kimio Adachi, Koji Kosuge, Sukeji Kachi
1974 Volume 36 Issue 5 Pages
1489
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Katsushi Tokunaga, Yukitomo Komura
1974 Volume 36 Issue 5 Pages
1490
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Uichi Itoh, Hiroyuki Anzai
1974 Volume 36 Issue 5 Pages
1491
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Ken-ichi Kan’no, Seiji Mukai, Yoshio Nakai
1974 Volume 36 Issue 5 Pages
1492
Published: May 15, 1974
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Joji Kinoshita, Chikako Yamanouchi, Kazuo Yoshihiro
1974 Volume 36 Issue 5 Pages
1493
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Toshikazu Hirose
1974 Volume 36 Issue 5 Pages
1494
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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Satoshi Nanamatsu, Masakazu Kimura
1974 Volume 36 Issue 5 Pages
1495
Published: May 15, 1974
Released on J-STAGE: May 29, 2007
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