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Numerical methods to solve Euler equations in one-dimensional steady nozzle flow

机译:一维稳定喷嘴流中求解欧拉方程的数值方法

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摘要

A new numerical approach to the solution of the steady one-dimensional nozzle flow has been developed. The main advantages of the new method consist in avoiding the discontinuity, and the consequent instability, present in the classical approach and in the simple criterion to find the transonic point. The former aspect is very important for flows with chemical reactions, where the transonic point does not coincide with the minimum of the nozzle section. Comparisons between the new and the classical method put in evidence the better performances of the new approach mainly in the solution of reacting flows.
机译:开发了一种新的数值方法来求解稳定的一维喷嘴流。新方法的主要优点在于避免了经典方法和查找跨音点的简单准则中存在的不连续性和随之而来的不稳定性。前一个方面对于发生化学反应的流非常重要,在该流中,跨音点与喷嘴截面的最小值不一致。新方法和经典方法之间的比较表明,新方法的更好性能主要表现在反应流的求解上。

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