抄録
Exact solutions of the Navier-Stokes equations are obtained for the boundary layer growth on an infinite flat plate with uniform suction or injection (with velocity V normal to its plane) which is started at time t=0 (with velocity U along its plane), for the two cases: i) U=arbitrary, V=const and ii) U∞tα, V∞t−1⁄2.
i) gives simple relations between the cases of suction and injection and ii) gives similar velocity profiles.
Rayleigh’s problem (U=const) is investigated in detail, and the resulting solutions show the same qualitative natures as the corresponding steady flow solutions for an semi-infinite flat plate so far obtained.