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Progress in Coupled LES-RANS Computations of Gas Turbines

[+] Author Affiliations
Jörg Schlüter, Xiaohua Wu, Heinz Pitsch

Center for Turbulence Research, Stanford, CA

Sangho Kim, Juan Alonso

Aerospace Computing Lab, Stanford, CA

Paper No. PVP2004-3131, pp. 149-158; 10 pages
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4686-5
  • Copyright © 2004 by ASME


The numerical prediction of the entire aero-thermal flow through an entire gas turbine is currently limited by its high computational costs. The approach presented here intends to use several specialized flow solvers based on the Reynolds-averaged Navier-Stokes equations (RANS) as well as Large Eddy Simulations (LES) running simultaneously and exchanging information at the interfaces. This study documents the development of the interface and proves its accuracy and efficiency on simple test-cases. Furthermore, its application to a turbo-machinery application is demonstrated.

Copyright © 2004 by ASME



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