Computational Fluid DynamicsNo Access

THE EFFECT OF SURFACE CURVATURE ON UNDEX-INDUCED HULL CAVITATION

WENFENG XIE

Department of Civil and Environmental Engineering, Princeton University, NJ 08544, USA

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TIEGANG LIU

LMIB and Department of Mathematics, Beijing University of Aeronautics and Astronautics, Beijing, 100083, P.R. China

Communication author.

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, and

YIN-LU YOUNG

Department of Civil and Environmental Engineering, Princeton University, NJ 08544, USA

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https://doi.org/10.1142/S0217984909018138Cited by:0 (Source: Crossref)

Abstract

Hull cavitation evolution induced by an underwater explosion (UNDEX) near a deformable steel structure is numerically investigated using a multiphase compressible fluid solver^1-3 coupled with an unsteady one-fluid cavitation model^4,5. A series of computations are conducted with varying structure surface curvature. Results suggest that structure surface curvature influence the peak pressures generated from the shock impact and cavitation collapse; a concave-designed surface not only causes local shock focus but also enhances the subsequent cavitation reload.

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