An investigation of hybrid LES/RANS models for predicting flow fields with separation

Ken Ichi Abe, Yoshihiro Miyata

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

A hybrid approach connecting large eddy simulation (LES) with the Reynolds-averaged Navier-Stokes (RANS) modeling in the near-wall region is studied. In contrast to most of the previous studies that have employed linear eddy-viscosity models, in this study, an advanced non-linear eddy-viscosity model is introduced to resolve the near-wall stress anisotropy more correctly. The proposed model is applied to a periodic hill flow with massive separation, as well as fundamental fully-developed plane channel flows. In the calculations, various grid resolutions are used to investigate the model performance in detail. The present model provides encouraging results for further development of this kind of hybrid LES/RANS model.

Original languageEnglish
Pages1153-1158
Number of pages6
Publication statusPublished - Dec 1 2005
Event4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4 - Williamsburg, VA, United States
Duration: Jun 27 2005Jun 29 2005

Other

Other4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4
CountryUnited States
CityWilliamsburg, VA
Period6/27/056/29/05

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All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

Cite this

Abe, K. I., & Miyata, Y. (2005). An investigation of hybrid LES/RANS models for predicting flow fields with separation. 1153-1158. Paper presented at 4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4, Williamsburg, VA, United States.