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首页> 外文期刊>Journal of Aerospace Sciences and Technologies >EFFECT OF DIFFUSER VANE HEIGHT AND POSITION ON DIFFUSER WALL STATIC PRESSURES IN A CENTRIFUGAL COMPRESSOR
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EFFECT OF DIFFUSER VANE HEIGHT AND POSITION ON DIFFUSER WALL STATIC PRESSURES IN A CENTRIFUGAL COMPRESSOR

机译：扩散器叶片高度和位置对离心压缩机中扩散器壁静压力的影响

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摘要

The present paper reports experimental investigations on the effect of diffuser vane height and its position on diffuser wall static pressures of a low speed centrifugal compressor. Apart from the standard types of diffusers, namely, vaneless, vane and low solidity vane diffusers, a partial vane diffuser, whose height is less than the diffuser width is also tested. The vane height of the partial vane diffuser is varied from 0.3, 0.4 and 0.5 times the diffuser width in vane and low solidity vane diffuser configurations. In addition, the effect of vane position is examined by fixing the partial vanes to the hub, shroud or hub and shroud. It is found that there is an optimum height for the diffuser vane height, which is found to be 0.3 times the diffuser width. The effect of position of the partial vanes on the hub or shroud on the diffuser wall static pressures is found to be negligible. However when partial vanes are fixed on the hub and shroud staggered at half spacing, the diffuser performance based on wall static pressures is improved substantially.
机译：本文对低速离心压缩机的扩压器叶片高度及其位置对扩压器壁静压力的影响进行了实验研究。除了标准类型的扩散器，即无叶片，叶片和低密度叶片扩散器之外，还测试了高度小于扩散器宽度的部分叶片扩散器。在叶片和低密度叶片扩散器构造中，部分叶片扩散器的叶片高度为扩散器宽度的0.3、0.4和0.5倍变化。另外，通过将部分叶片固定到轮毂，护罩或轮毂和护罩上来检查叶片位置的影响。发现对于扩散器叶片高度存在最佳高度，发现该最佳高度是扩散器宽度的0.3倍。发现分叶在毂上或护罩上的位置对扩散器壁静压力的影响可以忽略。但是，当将部分叶片固定在轮毂上并且将护罩错开一半的间距时，基于壁静压力的扩散器性能会大大提高。

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