期刊
JOURNAL OF COMPUTATIONAL PHYSICS
卷 228, 期 17, 页码 6590-6616出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcp.2009.05.047
关键词
Cartesian grid method; Sharp interface method; immersed boundary method; Level-set method; Ghost-fluid method; Large-eddy simulation; Ship hydrodynamics; Two-phase flow; Moving bodies
资金
- Office of Naval Research (ONR) [N00014-01-1-0073, N00014-06-1-0420]
- Naval Oceanographic Office Major Shared Resource Center (NAVO MSRC)
- Department of Defense (DoD)
- High Performance Computing Modernization Program (HPCMP)
- RANS solution for the DTMB [5512]
A sharp interface Cartesian grid method for the large-eddy simulation of two-phase turbulent flows interacting with moving bodies is presented. The overall approach uses a sharp interface immersed boundary formulation and a level-set/ghost-fluid method for solid-fluid and fluid-fluid interface treatments, respectively. A four-step fractional-step method is used for velocity-pressure coupling, and a Lagrangian dynamic Smagorinsky subgrid-scale model is adopted for large-eddy simulations. A simple contact angle boundary condition treatment that conforms to the immersed boundary formulation is developed. A variety of test cases of different scales ranging from bubble dynamics, water entry and exit, landslide-generated waves, to ship hydrodynamics are performed for validation. Extensions for high Reynolds number ship flows using wall-layer models are also considered. (C) 2009 Elsevier Inc. All rights reserved.
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