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Within the framework of the two-fluid approach, gas was treated with a large-eddy simulation and a sub-grid-scale (SGS) turbulent kinetic energy model while particles were treated with a second-order-moment method to describe the anisotropy of the fluctuating velocity. A modified Simonin model was derived for the gas–solid interphase fluctuating energy transfer. The anisotropic gas–solid flow in a...
The second-order moment (SOM) method is developed to describe the fluctuating anisotropy of particles in coal combustion process. Large-eddy simulation (LES) is employed for turbulence of gas phase. The LES-SOM model is coupled with chemical kinetics for coal combustion simulations and the anisotropy characteristic of particles is analyzed in circulating fluidized bed (CFB). The simulation results...
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