CFD Simulations of Turbulent Flows in a Twin Swirl Combustor by RANS and Hybrid RANS/LES Methods

Forced Response: Turbulent Swirl Combustor

Since a large number of physical variables are involved in the combustion process occurring in complex swirl stabilized combustors, simple systems (burner stabilized laminar flat flames) were initially studied (see chapters 5 and 6). Having understood the dynamics of laminar flat flames and developed methodologies to build reduced order flame dynamic models, the technique developed to measure t...

CFD Insight of the Flow Dynamics and Velocity Fields in a Gas Turbine Combustor with a Swirl Flame

The computational fluid dynamics (CFD) simulations of gas turbine combustor were performed for CH4<span st...

Des, Hybrid Rans/les and Pans Models for Unsteady Separated Turbulent Flow Simulations

This paper presents computational results for two DES (Detached Eddy Simulation), one hybrid RANS (Reynolds Averaged Navier-Stokes)/ LES (Large Eddy Simulation) and some preliminary results from PANS (Partially Averaged Navier-Stokes) turbulence for simulation of unsteady separated turbulent flows. The models are implemented in a full 3-D Navier Stokes solver and are based on the twoequation k-...

Rans Modelling of Intermittent Turbulent Flows Using Adaptive Mesh Refinement Methods

Modeling unsteady turbulent flows over ripples: RANS versus LES