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为了进行低温推进剂输送管路瞬变流的计算,推导了波纹管内瞬变流动的连续性方程和动量方程,并推出波纹管的水击波速计算公式。将波纹管控制方程等效转化后,可以通过特征线法求解。通过实例计算表明,计算结果与实际测试数据较为吻合。
In order to calculate the transient flow in the pipeline of cryogenic propellant, the continuity equation and momentum equation of transient flow in the corrugated tube were deduced, and the calculation formula of the water hammer velocity of the corrugated tube was deduced. Equivalent transformation of the bellows governing equation can be solved by the characteristic line method. The calculation results show that the calculation results are in good agreement with the actual test data.