| 基于CFD的离心泵内部流场数值模拟 |
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| 引用本文： | 宋素芳,刘宇霆. 基于CFD的离心泵内部流场数值模拟[J]. 能源与节能, 2020, 0(3): 99-100,156 |
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| 作者姓名： | 宋素芳 刘宇霆 |
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| 作者单位： | 太原科技大学化学与生物工程学院 |
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| 基金项目： | 太原科技大学博士启动基金(20182008)。 |
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| 摘 要： | 采用GAMBIT建模划分网格,基于CFD技术,采用雷诺时均N-S方程和RNG k-ε湍流模型对离心泵内部的二维湍流流动进行了数值模拟,得到了离心泵内部流场的压力分布、速度分布及气蚀特性规律。结果表明,叶轮内部流体从叶片入口到离心泵出口速度不断降低,压力不断升高。同时,得到了气蚀分布特性,在所研究工况条件下,气蚀首先在叶片两侧出现。模拟结果对工程实践和离心泵水力性能研究有一定的指导意义。
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| 关 键 词： | 离心泵 气蚀 数值模拟 流场分布 流体动力学 |
Numerical Simulation of Internal Flow Field of Centrifugal Pump Based on CFD |
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| SONG Sufang,LIU Yuting. Numerical Simulation of Internal Flow Field of Centrifugal Pump Based on CFD[J]. Energy and Conservation, 2020, 0(3): 99-100,156 |
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| Authors: | SONG Sufang LIU Yuting |
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| Affiliation: | (School of Chemical and Biological Engineering,Taiyuan University of Science and Technology,Taiyuan 030021,Shanxi,China) |
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| Abstract: | Using GAMBIT modeling to divide grid,based on the CFD technology,the Reynolds time averaged N-S equation and RNG k-εturbulence model were used to simulate the two-dimensional turbulent flow in the centrifugal pump.The pressure dis-tribution,velocity distribution and cavitation characteristics of the flow field in the centrifugal pump were obtained.The results showed that the speed of flow from blade inlet to centrifugal pump outlet was decreasing and the pressure was increasing.At the same time,the characteristics of cavitation distribution were obtained.Under the condition of the study,cavitation appeared first on both sides of the blade.The simulation results have certain guiding significance for the engineering practice and the research on the hydraulic performance of centrifugal pump. |
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| Keywords: | centrifugal pump cavitation numerical simulation flow field distribution fluid dynamics |
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