Numerical simulation and experimental research on cold flow field in staged supplemental oxygen entrained-flow gasifier

Using standard k-e turbulence model and SIMPLE algorithm,simulate the cold flow field in entrained-flow gasifier which is supplied with oxygen gradually.Compared the measurement results with the numerical simulation results,find that the two match perfectly.The numerical simulation show that there are recirculation areas in furnace,which are not simply plug-flows.The opening of secondary nozzle has great influence on cold flow field of its plane,meanwhile the height of nozzle also affects the distribution of the cold flow field.