pre-rotation是什么意思

网络释义

用法例句

Numerical studies of heat transfer in a rotor-stator cavity with different radial positions of pre-swirl inlet;

预旋进气位置对转静盘腔换热影响的数值研究

Experimental study on heat transfer in rotor-stator cavity with high-positioned pre-swirl inflow;

高位预旋进气转静盘腔换热实验

Flow and heat transfer investigation in pre-swirl inflow rotor-stator cavity;

预旋进气转-静盘腔中的流动和传热数值研究

The impeller inlet prewhirl flow in a HW-G1 centrifugal fan has been measured by means of the three-hole probe and micropressure gauge.

结果表明该离心风机叶轮进口存在预旋 ,且预旋沿周向和轴向分布都不均匀。

At the same time,comparison of the fans electric current when the inlet air flow to be backward prerotation and forward prerotation has been carried out under same open degree,and causes resulting in said phenomenon have be.

同时,对相同导叶开度下,入口气流反预旋及正预旋时的风机电流进行了比较,并利用速度三角形及欧拉方程式,对造成此现象的原因进行了简要分析。

The similarity analysis and numerical simulation were applied to a new structure of rotating disk system with pre swirl nozzles on the rotating disk.

采用 K -ε湍流模型对带有预旋的新型旋转盘腔内的流动进行相似分析和数值计算。

Incorrect designed intake structure of a pumping station may result in pre swirl in the flow entering the pump and swirl in suction pipe even under no pump operation, which shall change flow condition, and affect adversely both pump performance and cavitation characteristics.

设计不良的泵站进水建筑物 ,在不带泵运行的情况下 ,也会引起水泵进口水流预旋和吸水管内涡流 ,改变水泵的进水条件 ,恶化水泵的能量特性和汽蚀特性。