European Turbulence Conference 2015

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11:00
15 mins

Explicit algebraic and differential Reynolds stress model application to homogeneously sheared and compressed turbulence
Igor A. Grigoriev, Stefan Wallin, Geert Brethouwer, Arne V. Johansson

Session: Reacting and compressible flows 2
Session starts: Thursday 27 August, 10:30
Presentation starts: 11:00
Room: Room F

Igor A. Grigoriev (Royal Institute of Technology)
Stefan Wallin (Royal Institute of Technology, Swedish Defence Research Agency)
Geert Brethouwer (Royal Institute of Technology)
Arne V. Johansson (Royal Institute of Technology)

Abstract:
An explicit algebraic and differential Reynolds stress models (EARSM and DRSM) are used to investigate the influence of homogeneous shear and compression on the behaviour of turbulence in the limit of rapid distortion theory (RDT). EARSM is shown to give realizable results and to preserve RDT regime, unlike the eddy-viscosity model (EVM). The DRSM version of our model is in reasonable agreement with RDT theory.