combustion flow field numerical simulation method for a solid fuel ramjet

The invention discloses a combustion flow field numerical simulation method for a solid fuel ramjet which comprises the following specific steps: firstly, carrying out gas thermodynamic calculation toobtain fuel-rich gas components and mass fractions of the components; Then establishing a turbulence model, and calculating to obtain a turbulence stress item; Secondly, establishing a mass source item, an oxide mass source item and a chemical reaction energy source item of each component of the fuel-rich gas; Then establishing a gas-phase combustion model, and calculating to obtain a gas-phase chemical reaction rate; And finally, substituting the solved numerical values into a gas phase control equation set, if the gas phase control equation set converges, determining all flow field parameters as a final result, and if the gas phase control equation set does not converge, adding relaxation factors to all initial parameters to carry out calculation again until the gas phase control equation set converges. By adop