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通过试验和对数据的进一步处理 ,获得了叶片扩压器内部非定常流场的分布情况。详细分析了叶片扩压器内部的非定常流动现象和流动规律。通过研究发现在叶片扩压器进口处 ,高速区位于扩压器流道的左下角 ,低速区位于扩压器流道的右上角。随着流动的发展 ,流道左上角逐渐演变为一个大范围的高速区。
Through the experiment and further processing of the data, the distribution of unsteady flow field inside the vane diffuser was obtained. The unsteady flow phenomenon and flow pattern in the vane diffuser are analyzed in detail. It is found through research that at the entrance of the vane diffuser, the high speed zone is located in the lower left corner of the diffuser runner and the low speed zone is located in the upper right corner of the diffuser runner. As the flow of development, the upper left corner of the runway gradually evolved into a large area of high-speed area.