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RESEARCH PAPERS

Numerical Solutions of the Navier-Stokes Equations in Inlet Regions

[+] Author and Article Information
J. W. McDonald

Applied Theory, Inc., Los Angeles, Calif.

V. E. Denny, A. F. Mills

School of Engineering and Applied Science, University of California, Los Angeles, Calif.

J. Appl. Mech 39(4), 873-878 (Dec 01, 1972) (6 pages) doi:10.1115/1.3422884 History: Received May 24, 1971; Online July 12, 2010

Abstract

Numerical solutions of the Navier-Stokes equations are obtained for steady two-dimensional flow in the inlet region of both a tube and a channel. The entering flow is considered to be either uniform (u = constant, v = 0) or irrotational (u = constant, ω = 0). Values of Reynolds number Re = u0 a/ν range from 0.75 to 2 × 106 . An improved method for solving the stream function-vorticity equations of hydrodynamics has been developed. The method is stable at all Reynolds numbers and appears to be computationally superior to previous methods.

Copyright © 1972 by ASME
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