TY - GEN
T1 - Towards prediction of 3-D separated flows using an unstructured LES code
AU - Chang, Peter
AU - Jiang, Minyee
AU - Lummer, Dory
AU - Mahesh, Krishnan
PY - 2009/12/1
Y1 - 2009/12/1
N2 - In this paper, we document large eddy simulations (LES) performed on a sphere and the Advanced Swimmer. Delivery System (ASDS), a small blunt-ended submarine. The objective of this work is to develop a methodology for being able to compute the occurrence and strength of stern separation in order to accurately predict drag, maneuvering and structural loads, and acoustic signatures. We are using an energy-conserving large eddy simulations (LES) code called MPCUGLES that runs with hybrid structured-unstructured meshes. We document LES of flow over a sphere at Reynolds numbers 10,000 to 1.14 million with excellent comparison to experimental data. We also document a preliminary effort for LES of flow over ASDS. Even the simplest of these computations is very CPU-intensive necessitating the large amounts of CPU time available through the HPCMP Challenge Project C3U.
AB - In this paper, we document large eddy simulations (LES) performed on a sphere and the Advanced Swimmer. Delivery System (ASDS), a small blunt-ended submarine. The objective of this work is to develop a methodology for being able to compute the occurrence and strength of stern separation in order to accurately predict drag, maneuvering and structural loads, and acoustic signatures. We are using an energy-conserving large eddy simulations (LES) code called MPCUGLES that runs with hybrid structured-unstructured meshes. We document LES of flow over a sphere at Reynolds numbers 10,000 to 1.14 million with excellent comparison to experimental data. We also document a preliminary effort for LES of flow over ASDS. Even the simplest of these computations is very CPU-intensive necessitating the large amounts of CPU time available through the HPCMP Challenge Project C3U.
UR - http://www.scopus.com/inward/record.url?scp=79953147503&partnerID=8YFLogxK
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U2 - 10.1109/HPCMP-UGC.2009.23
DO - 10.1109/HPCMP-UGC.2009.23
M3 - Conference contribution
AN - SCOPUS:79953147503
SN - 9780769539461
T3 - Department of Defense Proceedings of the High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009
SP - 127
EP - 132
BT - Department of Defense Proceedings of the High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009
T2 - 2009 DoD High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009
Y2 - 15 June 2009 through 18 June 2009
ER -