文献类型：期刊文献

英文题名：Effects of Different Turbulence Models on Simulation Accuracy of the Miniature Super-low Specific Speed Centrifugal Pump

作者：Zhou, Jin[1]; Xing, Gailan[1]; Zhou, Shaoping[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China

年份：2019

卷号：490

期号：5

外文期刊名：IOP Conference Series: Materials Science and Engineering

收录：EI(收录号：20191906901803)

语种：英文

外文关键词：Centrifugal pumps - Hydraulic machinery

摘要：In order to study the effects of different turbulence models on simulation accuracy of the miniature super-low specific speed centrifugal pump, the RNG k-turbulence model and SST k-ω turbulence model had been used in numerical simulation by Fluent. The performance curves and the internal flow filed distribution of those two turbulence models had been analysed and compared with the experiment results. The results show that at the low flow rate conditions, the simulation accuracy of the SST k-ω model is lower than that of the RNG k-model, while at the high flow rate conditions, the result is just the opposite. In the whole operating conditions, the average simulation error of the SST k-ω model is 3.5% and that of the RNG k-model is 4.3%. ? Published under licence by IOP Publishing Ltd.