基于CFX软件平台，对带无叶扩压器离心叶轮机械内部的非定常流动进行了数值计算分析研究。
The unsteady flow within a centrifugal fan with vaneless diffuser was numerical simulated and analyzed on the CFX software flat.
结果表明：无叶扩压器内部流动的计算值与实验值相吻合。
The results show that the computed results of the flow within the vaneless diffuser was agreed with the available experimental data.
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