LARGE-EDDY SIMULATION OF TURBULENT CHANNEL FLOW USING THE EXPLICIT ALGEBRAIC SUBGRID-SCALE MODEL etc15 Tracking Number 276Presentation: Session: Large Eddy Simulation 3 Room: Room E Session start: 10:30 Fri 28 Aug 2015 Matteo Montecchia matteomo@kth.se Affifliation: Linné FLOW Centre, KTH Mechanics, SE-100 44 Stockholm, Sweden Amin Rasam rasam@mech.kth.se Affifliation: Linné FLOW Centre, KTH Mechanics, SE-100 44 Stockholm, Sweden Geert Brethouwer geert@mech.kth.se Affifliation: Linné FLOW Centre, KTH Mechanics, SE-100 44 Stockholm, Sweden Arne Viktor Johansson johansson@mech.kth.se Affifliation: Linné FLOW Centre, KTH Mechanics, SE-100 44 Stockholm, Sweden Topics: - Wall bounded flows, - Large eddy simulation and related techniques Abstract: Large-eddy simulation (LES) of turbulent channel flow are performed with a new subgrid-scale (SGS) stress model. The simulations show that with this model we can well predict turbulent wall flows at coarse resolutions and moderately high Reynolds numbers. The commonly used dynamic Smagorinsky model fails at coarser resolutions. |