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Numerical Simulation of Combustion in a Wall Jet Combustor with a Fast Particle Tracking Algorithm

A fast particle tracking algorithm based on unstructured grids is proposed. The cost of CPU time with this algorithm is compared with a recently developed one for a spray on a fixed chamber with different particle numbers. It shows a clear advantage of the present algorithm. Numerical simulation of gas-liquid two-phase reacting flows is performed in a wall jet combustor using this method. The general transport equations are discretized by finite volume method and solved by SIMPLEC method for the gas phase flow. The interaction between two phases is taken into account with full two way coupling method. Spalding evaporation model is used for particle evaporation and Eddy Break-Up (EBU) model for combustion. The numerical results are consistent with the experimental data in literature.