施卫东;王国涛;蒋小平;张德胜;恽强龙;徐燕;
SHI Wei-dong,WANG Guo-tao,JIANG Xiao-ping,ZHANG De-sheng,YUN Qiang-long,XU Yan(Jiangsu University,Zhenjiang 212013,China)

• 1:江苏大学

摘要(Abstract)：

采用雷诺时均Navier-Stokes方程和RNG k-ε双方程湍流模型,基于弹性体结构动力学方程,对轴流泵内部流场和叶轮结构响应进行多工况双向同步耦合求解,研究了流固耦合作用对轴流泵内部流场的影响。结果表明:考虑流固耦合作用后,叶片工作面和背面的压差有所减小,说明叶片性能有所下降;叶片出口处的二次回流现象有所加剧;计算得到的轴流泵水力性能参数更加接近试验值,说明考虑流固耦合后的流场更加接近于真实流场。
A combined calculation under multiple conditions for flow field and structural response of the impeller was established using two-way coupling method,analyzed the effect of fluid-structure interaction(FSI)on flow field in axial-flow pump.For the calculation,the flow field is based on Reynolds-averaging N-S equations and two equation RNG k-ε turbulent model,and the structure response is based on elastic structural dynamic equation.The results show that: the pressure difference between the pressure side and suction side decreased slightly after considering the role of FSI,indicating that blade performance decreased;The phenomenon of secondary flow at blade outlet intensified;The computed hydraulic performance parameters in axial-flow pump are much closer to experimental values,illustrating that the flow field considering FSI is much closer to the real flow field.

关键词(KeyWords)： 轴流泵;流固耦合;流场;数值计算
axial-flow pump;fluid-structure interaction;flow field;numerical calculation

Abstract:

Keywords:

基金项目(Foundation): 国家自然基金项目(51079063);; 江苏高等学校优秀科技创新团队项目(苏教科[2009]10号);; 江苏高校优势学科建设工程资助项目

作者(Authors): 施卫东;王国涛;蒋小平;张德胜;恽强龙;徐燕;
SHI Wei-dong,WANG Guo-tao,JIANG Xiao-ping,ZHANG De-sheng,YUN Qiang-long,XU Yan(Jiangsu University,Zhenjiang 212013,China)

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