Analysis of Cavitation and Flow Computation of Inducer
Analysis of Cavitation and Flow Computation of Inducer
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诱导轮空化分析及流量计算
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
崔宝玲
中科院分区：
文献类型：
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作者：
郭晓梅;Guo, Xiaomei;李昳;朱祖超;Li, Yi;Cui, Baoling;Zhu, Zuchao;崔宝玲
为了获得诱导轮中速度、压力和湍流的分布，基于SIMPLEC算法，利用时均N - S方程和修正的k - ε模型对两种结构的诱导轮内的三维湍流进行了数值计算。
In order to obtain the distributions of velocity,pressure and turbulence in inducers,on the basis of SIMPLEC algorithm,the 3D turbulent flow in inducers of two structures is numerically computed by using the time-averaged N-S equation and the modified k-e turbulent model.The calculation result proves that the outer margin near the inlet is where cavitation damage most easily takes place.The result also shows that increasing the lead and the axial length of inducer can improve the suction performance.The performance of cavitation tests in the centrifugal pump with an inducer of two different structural parameters and without an inducer are carried out.The result shows that the pump is easy to have cavitation without the inducer,and the cavitation performance can be improved by adding inducer.The parameters of inducer lead,axial length and the blade angle will influence the cavitation performance.Results of numerical calculation and experimental research prove that increasing the lead and the axial length of inducer can improve the suction performance.