Explicit algebraic and differential Reynolds stress model application to homogeneously sheared and compressed turbulence etc15 Tracking Number 413Presentation: Session: Reacting and compressible flows 2 Room: Room F Session start: 10:30 Thu 27 Aug 2015 Igor A. Grigoriev igor@mech.kth.se Affifliation: Royal Institute of Technology Stefan Wallin stefan.wallin@foi.se Affifliation: Royal Institute of Technology, Swedish Defence Research Agency Geert Brethouwer geert@mech.kth.se Affifliation: Royal Institute of Technology Arne V. Johansson johansson@mech.kth.se Affifliation: Royal Institute of Technology Topics: - Reacting and compressible turbulence 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. |