数値解析による浸透層内の層流一乱流遷移領域の流れの特性

抄録

This paper concerns with the study of the seepage flow of laminar-turbulent transient zone by numerical analysis.
The seepage flow is modeled as the flow between two dimensional multiple columns. The numerical solutions of. Navier-Stokes equation are obtained for this flow, especially, the flow patterns, the pressure and the vorticity distributions on the column surface, and the relation between friction coeffient and Reynolds number.
D. E. Wright (1968) investigated the nonlinear seepage flow experimentally and showed the existence of the steady inertia regime, which is characterized by friction coefficient and Reynolds number range of 1∼ 5, the lower limit, and 90∼ 120, the upper limit.
Numerical solutions obtained here may be available only for the case where the flow region is modeled, however, these results predict the existence of the steady inertia regime which D. E. Wright discussed.