Abstract
Incompressible flow solvers are generally used for numerical analysis of cavitating flows, but with limitations in handling compressibility effects on vapor phase. To study compressibility effects on vapor phase and cavity interface, pressure-based incompressible and isothermal compressible flow solvers based on a cell-centered finite volume method were developed using the OpenFOAM libraries. To validate the solvers, cavitating flow around a hemispherical head-form body was simulated and validated against the experimental data. The cavity shedding behavior, length of a re-entrant jet, drag history, and the Strouhal number were compared between the two solvers. The results confirmed that computations of the cavitating flow including compressibility effects improved the reproduction of cavitation dynamics.
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Recommended by Editor Dongshin Shin
Sunho Park received his B.S. at Inha University, Korea, in 2000. He obtained his M.S. and Ph.D. at Seoul National University, Korea, in 2002 and 2013, respectively. He is currently a Professor in the Department of Ocean Engineering at Korea Maritime and Ocean University, Korea. His research interests are in the areas of computational fluid dynamics, multi-phase flow, and offshore plant engineering.
Shin Hyung Rhee received his B.S. and M.S from the Department of Naval Architecture and Ocean Engineering at Seoul National University, Korea, in 1990 and 1992, respectively. He obtained his Ph.D. in Mechanical Engineering from University of Iowa, USA, in 1998. He is currently a Professor in the Department of Naval Architecture and Ocean Engineering at Seoul National University, Korea. His research interests are in the areas of computational fluid dynamics, towing tank experiments and multi-phase flow.
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Park, S., Rhee, S.H. Comparative study of incompressible and isothermal compressible flow solvers for cavitating flow dynamics. J Mech Sci Technol 29, 3287–3296 (2015). https://doi.org/10.1007/s12206-015-0727-4
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DOI: https://doi.org/10.1007/s12206-015-0727-4