Free-Surface Wave-Induced Separation

[+] Author and Article Information
Z. J. Zhang, F. Stern

Department of Mechanical Engineering, Iowa Institute of Hydraulic Research, The University of Iowa, Iowa City, Iowa 52242

J. Fluids Eng 118(3), 546-554 (Sep 01, 1996) (9 pages) doi:10.1115/1.2817793 History: Received August 01, 1995; Revised May 14, 1996; Online December 04, 2007


Free-surface wave-induced separation is studied for a surface-piercing NACA 0024 foil over a range of Froude numbers (0, .2, .37, .55) through computational fluid dynamics of the unsteady Reynolds-averaged Navier-Stokes and the continuity equations with the Baldwin-Lomax turbulence model, exact nonlinear kinematic and approximate dynamic free-surface boundary conditions, and a body/free-surface conforming grid. The flow conditions and uncertainty analysis are discussed. A topological rule for a surface-piercing body is derived and verified. Steady-flow results are presented and analyzed with regard to the wave and viscous flow and the nature of the separation.

Copyright © 1996 by The American Society of Mechanical Engineers
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