Tip-Clearance Effects in Centrifugal Pumps
Tip-Clearance Effects in Centrifugal Pumps
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DOI：
10.1115/1.3650846
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发表时间：
1965-12
期刊：
影响因子：
--
通讯作者：
G. M. Wood;H. Welna;R. Lamers
中科院分区：
文献类型：
--
作者：
G. M. Wood;H. Welna;R. Lamers
对几种设计模型的离心泵叶轮进行了水中试验，以确定叶尖间隙对无汽蚀和汽蚀性能的影响。尽管大多数这些叶轮的设计都没有尖端护罩，但还是包括了有护罩与无护罩模型的三个直接比较。在本研究范围内，不同程度的叶尖间隙对不同设计的受试型号的水力性能产生不同的趋势。与无护罩的叶轮相比，全护罩叶轮始终产生较差的空化性能。
Several design models of centrifugal pump impellers were tested in water to determine tip-clearance effects on noncavitating and cavitating performance. Although most of these impellers were designed without tip shrouds, three direct comparisons for shrouded versus unshrouded models are included. Within the scope of this investigation, varying degrees of tip clearance produced dissimilar trends in the hydraulic performance for the different design models tested. Fully shrouded impellers consistently yielded inferior cavitation performance as compared to unshrouded versions.