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无叶扩压器 [wú yè kuò yā qì]
[机] vaneless diffuser
- 由计算结果分析了叶轮和无叶扩压器内部的速度、压力、马赫数分布，并和叶片扩压器进行了对比。
The velocity, temperature, pressure, and Mach number are analyzed according to the simulation result and the difference between vane diffuser and vaneless diffuser is studied. - 对于由无叶扩压器和半开式三元叶轮组成的级模型，分别计算了无叶扩压器取不同扩张角时级内的流场。
For the Centrifugal Compressor Stage model consisted of unshrouded impeller and vaneless diffuser, steady flows are numerically simulated at different expansion angles. - 当提高转速时，气流速度沿扩压器宽度方向的变化较小。压力恢复系数在无叶扩压器前段增长较快，在后段增长缓和。
In front of the diffuser the pressure recovery coefficient rapidly rises with increasing R values, while in rear it rises slightly. These conclusions are useful for engineering design and application.
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