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RESEARCH PAPERS

Comparisons of Two Different Mixed Eulerian-Lagrangian Schemes Based on a Study of Flare-Slamming Hydrodynamics

[+] Author and Article Information
M. L. Wang, A. W. Troesch

Department of Naval Architecture and Marine Engineering, The University of Michigan, 2600 Draper Road, North Campus, Ann Arbor, MI 48109

B. Maskew

Analytical Methods, Inc., 2133-152nd Avenue N.E., Redmond, WA 98052

J. Offshore Mech. Arct. Eng 118(3), 174-183 (Aug 01, 1996) (10 pages) doi:10.1115/1.2828831 History: Received October 01, 1995; Revised February 06, 1996; Online December 17, 2007

Abstract

A comparative study of two different mixed Eulerian-Lagrangian methods is presented. Representative numerical simulations of oscillatory flare-slamming flows are given. Computations based on these two different numerical schemes, i.e., a desingularized method using Rankine ring sources and a source-doublet panel method (e.g., USAERO/FSP©), are compared with experiments. Fourier coefficients of the simulated time histories and experimentally measured forces are given for detailed error comparisons. The numerical simulations demonstrate the ranges of applicability of these two methods. Both are shown to be efficient and robust time-stepping schemes for the fully nonlinear free-surface problem studied here.

Copyright © 1996 by The American Society of Mechanical Engineers
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