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

K. Abe; Yoshi Miyata

doi:10.1504/PCFD.2006.011320

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

K. Abe, Yoshi Miyata

Thermophysics and Fluid Mechanics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A hybrid approach connecting Large Eddy Simulation (LES) with Reynolds-Averaged Navier-Stokes (RANS) modelling in the near-wall region is studied. The present hybrid model includes an advanced non-linear eddy-viscosity formulation to more correctly resolve the near-wall stress anisotropy. To investigate the model performance for complex turbulence, the present model is applied to a periodic hill flow with massive separation. The present model provides encouraging results for further development of this kind of hybrid LES/RANS model.

Original language	English
Pages (from-to)	475-486
Number of pages	12
Journal	Progress in Computational Fluid Dynamics
Volume	6
Issue number	8
DOIs	https://doi.org/10.1504/PCFD.2006.011320
Publication status	Published - 2006

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Computer Science Applications

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abstract = "A hybrid approach connecting Large Eddy Simulation (LES) with Reynolds-Averaged Navier-Stokes (RANS) modelling in the near-wall region is studied. The present hybrid model includes an advanced non-linear eddy-viscosity formulation to more correctly resolve the near-wall stress anisotropy. To investigate the model performance for complex turbulence, the present model is applied to a periodic hill flow with massive separation. The present model provides encouraging results for further development of this kind of hybrid LES/RANS model.",

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AB - A hybrid approach connecting Large Eddy Simulation (LES) with Reynolds-Averaged Navier-Stokes (RANS) modelling in the near-wall region is studied. The present hybrid model includes an advanced non-linear eddy-viscosity formulation to more correctly resolve the near-wall stress anisotropy. To investigate the model performance for complex turbulence, the present model is applied to a periodic hill flow with massive separation. The present model provides encouraging results for further development of this kind of hybrid LES/RANS model.

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

Abstract

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