Abstract:A cavitation tank was designed based on the range of measuring parameters for a multi-functional test-bed.As regard to the JM—211 mixing-flow pump with-2° blade angle,the cavitation-tank was simulated at the design point Q=2 200 m3/h by using the software FLUENT.The Reynolds Average N-S Equations,standard k-ε turbulence model and SIMPLEC algorithm were adopted.The distributions of velocity and pressure in the cavitation-tank,the rectifiers and the exit were analyzed.The calculation results were compared with those from experiments.The calculated results indicate that the distributions of velocity and pressure after the rectifiers are well-proportioned,and the decreased pressure difference was 250 Pa.The pressures of the pump inlet and outlet of the cavitation-tank were close,and the error of predicted pressure was merely 1.79%.The design of inlet and rectifiers of the cavitation-tank can achieve the required steady pressure at the pump inlet.
马新华;韩璐;刘厚林. 水泵试验台汽蚀筒内部流场数值模拟[J]. 排灌机械工程学报, 2008, 26(5): 23-26.
MA Xin-hua, HAN Lu, LIU Hou-lin. Numerical simulation of flow in cavitation-tank of pump test-bed. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(5): 23-26.
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