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Three‐Dimensional Boundary Layer for Decelerating Flows with or without Suction
Author(s) -
Bhatnagar P. L.,
Ahuja G. C.
Publication year - 1964
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.19640441203
Subject(s) - suction , boundary layer , conservative vector field , flow separation , flow (mathematics) , boundary layer suction , mechanics , blasius boundary layer , parasitic drag , boundary (topology) , materials science , boundary layer thickness , physics , layer (electronics) , chemistry , mathematics , thermodynamics , composite material , mathematical analysis , compressibility
Abstract The three‐dimensional boundary layer flow over a semi‐infinite flat plate with suction or injection, when the external irrotational velocity components are U = 1 ‐ x, V = α y n or U = 1/(1 + x ), V = α y n , with 0 < α ≪ 1, n ≥ 1, is studied by expanding the solution in powers of α and using the modified Pohlhausen method. It is found that both the boundary layer thicknesses decrease and the two components of skin‐friction increase as the result of cross‐flow, and consequently separation is delayed. Effects of suction and injection on separation in the presence of cross‐flow are also studied.