On the Development of the Large Eddy Simulation Approach for Modeling Turbulent Flow: LDRD Final Report

Technical Report · Fri Mar 01 04:00:00 EST 2002

DOI:https://doi.org/10.2172/800791· OSTI ID:800791

SCHMIDT, RODNEY C ^[1]; SMITH, THOMAS M; DESJARDIN, PAUL E; VOTH, THOMAS E; CHRISTON, MARK A; KERSTEIN, ALAN R; WUNSCH, SCOTT E

---

1. Sandia National Laboratories

This report describes research and development of the large eddy simulation (LES) turbulence modeling approach conducted as part of Sandia's laboratory directed research and development (LDRD) program. The emphasis of the work described here has been toward developing the capability to perform accurate and computationally affordable LES calculations of engineering problems using unstructured-grid codes, in wall-bounded geometries and for problems with coupled physics. Specific contributions documented here include (1) the implementation and testing of LES models in Sandia codes, including tests of a new conserved scalar--laminar flamelet SGS combustion model that does not assume statistical independence between the mixture fraction and the scalar dissipation rate, (2) the development and testing of statistical analysis and visualization utility software developed for Exodus II unstructured grid LES, and (3) the development and testing of a novel new LES near-wall subgrid model based on the one-dimensional Turbulence (ODT) model.

• Research Organization: Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 800791
• Report Number(s): SAND2002-0807
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
99 GENERAL AND MISCELLANEOUS
COMBUSTION KINETICS
COMPUTERIZED SIMULATION
FLOW MODELS
TESTING
TURBULENT FLOW