Combination of DES and DDES with a Correlation Based Transition Model

Abstract:

The present article describes the combination of the correlation based transition model of Menter et al. with the Detached Eddy Simulation (DES) and Delayed Detached Eddy Simulation (DDES) methodology. The interaction between transition model and DES or DDES method was investigated by T3A test case. The grid sensitivity of the combined methodology is discussed and the resolution is given. Then, the simulation of flow over foil of medium thick at stall angle was performed. The combined methodology produce results that have better agreement with experiment comparing to RANS transition model or fully turbulent DES/DDES alone. And the DDES based combined model shows a better agreement with experiment in the simulation of trailing edge separation comparing to DES based combined model.

• Periodical: Applied Mechanics and Materials (Volumes 444-445)
• Pages: 374-379
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.444-445.374
• Online since: October 2013
• Authors: Lei Qiao, Jun Qiang Bai, Jun Hua, Chen Wang
• Keywords: Airfoil Stall, Grid Sensitivity, Hybrid RANS/LES Model, Numerical Method, Transition Flow

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