throat velocity

The calculation formulas for velocity coefficients φ_2 and φ_5 for the throat and throat inlet section were deduced from the theoretical research on the velocity coefficients in time-averaged basic equations by use of the unsteady momentum equation and time-averaged value calculation method.

运用非恒定的动量方程和时均值计算方法，对脉冲液体射流泵时均值基本方程中的流速系数进行了理论研究，推导出了喉管和喉管进口段流速系数φ2和φ5的计算式。

互联网摘选

The result indicated, the operation parameter of influence dust removal the efficiencies are liquid-to-gas ratio, throat velocity and the entrance dust density.

实验研究文丘里各操作参数对除尘性能的影响，结果表明，影响除尘效率的主要为液气比、喉管速度及入口粉尘浓度。

互联网摘选

The characteristic velocity, area of nozzle throat and other parameters are calculated by using the static test results of solid rocket motor ( SRM) and introducing generalized pressure coefficient and thrust coefficient.

利用发动机地面试验结果，引入广义的压强系数和推力系数，计算了发动机的特征速度、喷管喉部面积等参数。

互联网摘选

Calculation and analysis for two different geometric structure scrubbers are made to express the relationship among pressure drop, throat diameter, gas velocity and liquid volume flow rate.

对两种不同的设计方案进行了计算分析，反映压降与喉管、气速和洗涤液量的关系。

互联网摘选