lagging angle

This paper does some theoretical and numerical simulation research about flow field and lagging angle of combined valve, input power of the pump. At last, the operating characteristic of combined valve under gas-liquid two-phase condition is presented.

本文以该泵用组合阀为研究对象，分别从阀内流场、阀滞后角、泵输入功率等方面进行理论分析及数值模拟研究，初步掌握了该组合阀在气液两相工况下的工作特性。

Compared the results of theoretical calculation and numerical simulation, the theoretical formula of lagging angle is confirmed. The study results can provide reference for lagging angle design of combined valve. 4.

将理论计算结果与数值模拟结果进行比较，验证了组合阀滞后角理论公式的准确性，可为往复式油气混输泵组合阀滞后角的设计计算提供参考。