Towards prediction of 3-D separated flows using an unstructured LES code

Peter Chang, Minyee Jiang, Dory Lummer, Krishnan Mahesh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

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.

Original languageEnglish (US)
Title of host publicationDepartment of Defense Proceedings of the High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009
Pages127-132
Number of pages6
DOIs
StatePublished - Dec 1 2009
Event2009 DoD High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009 - San Diego, CA, United States
Duration: Jun 15 2009Jun 18 2009

Publication series

NameDepartment of Defense Proceedings of the High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009

Other

Other2009 DoD High Performance Computing Modernization Program - Users Group Conference, HPCMP-UGC 2009
CountryUnited States
CitySan Diego, CA
Period6/15/096/18/09

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