关键词: 固体火箭推进剂;推进剂燃烧;裂纹扩展;二维流;流场仿真

Abstract: Under the condition of high pressure and high temperature gas flow field,the combustion fracture propagation in solid propellant was a nonlinear,nonequilibrium and irreversible thermodynamic coupling process.A strong coupling existed between the deformation,propagation and convective combustion flow field of the crack.The characteristics of 2 D flow fields were simulated using 2 D viscous N S equations on the boundary of combustion fracture in solid propellant.The results were compared with those of one dimensional equations.It’s helpful for researches of combustion fracture propagation models

Key words: Solid rocket propellant;Propellant combustion;Crack propagation;Two demensional flow;Flow field simulation