乱流境界層に対する新解釈と其の応用 (第二報)
1956 年 1956 巻 89 号 p. 23-32
詳細
1956 年 1956 巻 89 号 p. 23-32
The author proposes here a new vorticity transfer theory whose fundamental form is τR=-ζ/2D lα2v'd2u/dy2, where τR is Reynolds stress, l the mixture length, α2d2u/dy2 the circulation arround turbulent fluid particle and D the distance between the particle and its image refered to wall surface. Effect of viscosity is introduced as a loss of vorticity which appears in the expression of v'.
As an application of the theory the flows through circular pipe are calculated, and the result shows a good coincidence with experiment especially in the neighbourhood of wall. The theory can also explain the reason for variation of coefficient of correlation.
