Large eddy simulation and its implementation in the COMMIX code.

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Description

Large eddy simulation (LES) is a numerical simulation method for turbulent flows and is derived by spatial averaging of the Navier-Stokes equations. In contrast with the Reynolds-averaged Navier-Stokes equations (RANS) method, LES is capable of calculating transient turbulent flows with greater accuracy. Application of LES to differing flows has given very encouraging results, as reported in the literature. In recent years, a dynamic LES model that presented even better results was proposed and applied to several flows. This report reviews the LES method and its implementation in the COMMIX code, which was developed at Argonne National Laboratory. As an example ... continued below

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26 p.

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Sun, J. & Yu, D.-H. February 15, 1999.

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Description

Large eddy simulation (LES) is a numerical simulation method for turbulent flows and is derived by spatial averaging of the Navier-Stokes equations. In contrast with the Reynolds-averaged Navier-Stokes equations (RANS) method, LES is capable of calculating transient turbulent flows with greater accuracy. Application of LES to differing flows has given very encouraging results, as reported in the literature. In recent years, a dynamic LES model that presented even better results was proposed and applied to several flows. This report reviews the LES method and its implementation in the COMMIX code, which was developed at Argonne National Laboratory. As an example of the application of LES, the flow around a square prism is simulated, and some numerical results are presented. These results include a three-dimensional simulation that uses a code developed by one of the authors at the University of Notre Dame, and a two-dimensional simulation that uses the COMMIX code. The numerical results are compared with experimental data from the literature and are found to be in very good agreement.

Physical Description

26 p.

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OSTI as DE00011994

Medium: P; Size: 26 pages

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  • Other Information: PBD: 15 Feb 1999

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  • Report No.: ANL-97/16
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/11994 | External Link
  • Office of Scientific & Technical Information Report Number: 11994
  • Archival Resource Key: ark:/67531/metadc624763

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 15, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 10, 2017, 6:27 p.m.

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Sun, J. & Yu, D.-H. Large eddy simulation and its implementation in the COMMIX code., report, February 15, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc624763/: accessed October 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.