Flow Near the Stagnation Point of a Body Which Undergoes a Sudden Change in a Steady Stream

[+] Author and Article Information
K. Nanbu

Institute of High Speed Mechanics, Tohoku University, Sendai, Japan

J. Appl. Mech 40(1), 37-42 (Mar 01, 1973) (6 pages) doi:10.1115/1.3422969 History: Received June 01, 1971; Online July 12, 2010


Unsteady laminar boundary layers near the stagnation point of a body which undergoes a sudden change in a steady stream are analyzed by the method of successive approximations. It is shown that the second approximation which includes the effect of nonlinear convective terms of the equations of motion improves remarkably the first-order theory by the earlier investigators. Also, it seems that when the body is started with velocity increasing gradually with increasing time, the small-time solution obtained thus connects smoothly with the existing large-time solution.

Copyright © 1973 by ASME
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