We discuss the development of a numerical algorithm, and solver capable of performing large-eddy simulation in the very complex geometries often encountered in industrial applications. The algorithm is developed for unstructured hybrid grids, is non-dissipative, yet robust at high Reynolds numbers on highly skewed grids. Simulation results for a variety of flows are presented.
Bibliographical noteFunding Information:
This work was supported by the United States Department of Energy under the Accelerated Strategic Computing Initiative. We are grateful to Mr. Gianluca Iaccarino for his assistance in generating the grid used in the combustor simulations, and to Dr. Sourabh Apte and Mr. Suman Muppidi for useful discussions. We are thankful to Pratt and Whitney for the combustor geometry, validation data, and valuable technical input during various stages of this work. Computer time was provided by the San Diego Supercomputing Center and the Minnesota Supercomputing Institute.
- Complex geometries
- Energy-conserving schemes
- Gas-turbine combustor
- Large-eddy simulation
- Unstructured grids