筛选结果表明，旋流器的溢流口直径和底流口直径对旋流器的分离效果产生较大影响。
The selection result showed that the diameters of the overflow mouth and the underflow mouth of the hydrocyclone had an important influence on the separation result of the hydrocyclone.
其内部由于中心负压而形成空气柱，当流场稳定后，该空气柱从底流口到溢流口贯穿始终。
Air core comes into being because of central minus pressure and goes through the hydrocyclone from the overflow gate to the bottom outlet after the flow field become steady.
根据计算结果，分流比对分割尺寸的影响比较小，半锥角、溢流口尺寸与底流口尺寸对分割尺寸的影响比较大。
It is indicated that the split ratio has a relative small effect on the cutting size while the semi cone Angle and sizes of overflow and underflow orifices have very large effects.
研究表明，进气道溢流口位置是影响内乘波进气道起动能力的重要因素：在溢流口位置由两侧改至最下端后，起动马赫数由3.6下降为3.3；
The start Mach number reduces from 3.6 to 3.3 when the flooding position is changed from sides to bottom, further to 3.25 with one modular inlet.
然而，水压传动技术的应用必须以性能优良的水压元件为前提，而直动式水压溢流阀阀口的压力特性对水压控制系统有着重要影响。
This paper carries out the thorough analysis and research to the pressure characteristics of the water direct-actuated relief valves by experiment and simulation.
在不同压力、阀口开度等多种条件下，对先导式纯水溢流阀进行了试验研究。
The experiments were carried out with different supply pressure, flow rate and the pilot-operated water hydraulic relief valve opening on.
使用流体力学分析软件对减压溢流阀在阀口不同开度条件下进行了阀内流场的数值模拟和仿真；
Using fluid dynamics analysis software CFD made a numerical simulation to the BOP control system pressure relief valve under the valve different working conditions;
使用流体力学分析软件对减压溢流阀在阀口不同开度条件下进行了阀内流场的数值模拟和仿真；
Using fluid dynamics analysis software CFD made a numerical simulation to the BOP control system pressure relief valve under the valve different working conditions;
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