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Volume 58, Issue 1
Displaying 1-5 of 5 articles from this issue
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Kunio Sawaya, Saburo Adachi1987 Volume 58 Issue 1 Pages 13-25
Published: July 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSThe models and the methods to analize the electromagnetic field radiated mainly from the ICRF antennas are reviewed. The features of some typical antennas currently used and proposed for the ICRF plasma heating are also illustrated. The impedance characteristics of basic antennas obtained by the 2-dimensional finite element method analysis are shown and compared each other. The Faraday shield effects on the half turn loop antenna and the cutoff waveguide aperture antenna are discussed to indicate that the near field distribution and aperture field distribution are significantly altered by the presence of the Faraday shield.View full abstractDownload PDF (1147K) -
Chiyoe Yamanaka, Sadao Nakai1987 Volume 58 Issue 1 Pages 26-34
Published: July 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSThe concept and related physical processes of laser fusion are summarized. The investigations on the absorption of laser light, energy transport, ablation and implosion hydrodynamics of a pellet are proceeded resulting in the accumulation of the data bases which are necessary for the scaling to the fusion ignition. The demonstration of the generation of 1013 neutrons per shot and the pellet gain of 0.2% by LHART give the feasibility to achieve the ignition condition with 100 kJ blue laser.View full abstractDownload PDF (1082K) -
Sadao Nakai1987 Volume 58 Issue 1 Pages 35-39
Published: July 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSThe design studies of laser fusion reactors reveiled that the engineering feasibility to construct long life reactors is very high. Different concepts of reactor design are reviewed and compared.View full abstractDownload PDF (505K) -
Zensho Yoshida1987 Volume 58 Issue 1 Pages 40-49
Published: July 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSA mathematical structure of dissipative MHD has been discussed in its relations to the variational analyses and asymptotic analyses for nonlinear dynamical systems.View full abstractDownload PDF (854K) -
Yukimasa Takemoto1987 Volume 58 Issue 1 Pages 50-57
Published: July 20, 1987
Released on J-STAGE: March 04, 2011
JOURNAL FREE ACCESSAccurate and stable numerical solutions for time convection-dominated fluid flows are urgently required. A calculation procedure to solve the unsteady incompressible three-dimensional Navier-Stokes equations at relatively high Reynolds numbers in arbitrary shapes is presented. The boundary-fitted curvilinear coordinate system is used. The Adams-Bashforth scheme is used for the time integration and a third-order upwind differencing for the convective terms which have an advantage in suppressing the instabilities is used. The third-order method for the space derivatives based on the Quadratic Upstream Interpolation for Convective Kinematics (QUICK) algorithm is used. As an example, the solutions for a time-marching circular-sectioned bended pipe flow at the Reynolds number of 103 and 5×104 were obtained. The Taylor-Görtler type secondary vortices and the corner vortices were well caught in these simulations.View full abstractDownload PDF (637K)
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