شماره ركورد كنفرانس :
4518
عنوان مقاله :
Large eddy simulation of a tree-stream jet-in-hot-coflow flame
Author/Authors :
J. Aminian School of Chemical Engineering, Iran University of Science and Technology (IUST), Tehran , S. Shahhosseini School of Chemical Engineering, Iran University of Science and Technology (IUST), Tehran , M. Bayat Research Institute of Petroleum Industry (RIPI), Tehran
كليدواژه :
Large Eddy Simulation , MILD combustion , SGS model , shear layer , flameless
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
Large Eddy Simulation (LES) with finite-rate/eddy dissipation combustion model is applied to simulate transient behavior of a three-stream jet-in-hot-coflow (JHC) flame. Two static SGS models including the Smagorinsky and WALE together with two dynamic SGS models comprising the dynamic Smagorinsky and dynamic kinetic energy have been investigated to resolve sub-grid scale stresses. It is shown that the dynamic SGS models, generally, gives improved accuracy over the static models. In particular, the dynamic procedure of assigning model parameters and non-equilibrium turbulence assumption in the dynamic kinetic energy model are the key factors leading to produce acceptable results for mean and fluctuating temperature fields
