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Laminar flow past an abruptly accelerated elliptic cylinder at 45° incidence

Published online by Cambridge University Press:  29 March 2006

H. J. Lugt  and
H. J. Haussling
H. J. Lugt
Affiliation:
Naval Ship Research and Development Center, Washington D.C. 20034
H. J. Haussling
Affiliation:
Naval Ship Research and Development Center, Washington D.C. 20034
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Abstract

Numerical solutions for laminar incompressible fluid flows past an abruptly started elliptic cylinder at 45° incidence are presented. Various finite-difference schemes for the stream-function/vorticity formulation are used and their merits briefly discussed. Almost steady-state solutions are obtained for Re = 15 and 30, whereas for Re = 200 a Kármán vortex street develops. The transient period from the start to the steady or quasi-steady state is investigated in terms of patterns of streamlines and lines of constant vorticity and drag, lift and moment coefficients.

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Type
Research Article
Information
Journal of Fluid Mechanics , Volume 65 , Issue 4 , 2 October 1974 , pp. 711 - 734
Copyright
© 1974 Cambridge University Press

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