The gas-liquid two phase flow and combustion in wall jet combustor was simulated numerically using finite volume method based on unstructured grid.The gas phase flow was solved in Euler coordinate

while the droplet was described with Lagrange method.The computational domain was divided with tetrahedron.SIMPLECmethod was used for gas phase flow and Euler implicit method for droplet trajectory integration.The interaction between two phases was taken into account with full two way coupling method.Spalding evaporation model was used for droplet evaporating and eddy breakup(EBU) model for combustion.The numerical result is consistent with experimental data in literature.