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建立了一维喷管化学反应流计算模型 ,并进行了数值求解 ,给出了喷管内一维化学反应流计算结果。采用吉尔方法解决控制方程组的刚性问题获得满意效果。计算中解决了化学反应流计算中初值难于给定和喉部条件难于确定等问题。并通过对氢氧发动机喷管的分析计算 ,证明了这种方法的正确性。
A one-dimensional nozzle chemical reaction flow calculation model was established and numerically solved. The calculation results of one-dimensional chemical reaction flow in the nozzle were given. The use of Jill method to solve the stiffness of the governing equations to obtain satisfactory results. The calculation solves the problems that the initial value is difficult to be given in calculation of chemical reaction flow and the throat conditions are difficult to be determined. The correctness of this method is proved through the analysis and calculation of the oxyhydrogen nozzle.