Abstract：In allusion to the problem of stress-strain on the multiphase pump blade, a single-stage multiphase pump was used as a research object. Water,light oil,medium oil and heavy oil were selected as transportation mediums. ANSYS software was applied to numerical calculation, and the fluid domain is divided into structured grids using ICEM CFD and TurboGrid. The distribution law of flow field was obtained at different blade heights by numerical calculation. Meanwhile, the stress and strain distributions on the blade surface were analyzed under the conditions of 0.6Q to 1.6Q with a gas content of 10%. The results show that the maximum stress is mainly concentrated at the leading edge near the hub, but the maximum deformation is mainly concentrated at the leading edge near the shroud. The stress concentration area and maximum deformation area are shifted to the leading edge with the increase of medium viscosity. The equivalent stress and deformation are decreased with the increase of medium viscosity at the small flow rate, but the equivalent stress and deformation are increased with the increase of medium viscosity at the large flow rate. The results reveal the deistribution law of stress and strain in the multiphase pump blade,which will be helpful for the structured design and optimization.
史广泰*,姚显彤,王闪,李和林. 考虑介质黏性影响的多相混输泵叶片应力应变分析[J]. 排灌机械工程学报, 2020, 38(10): 991-996.
SHI Guangtai*,YAO Xiantong,WANG Shan,LI Helin. Analysis of stress and strain of the multiphase pump blade considering medium viscosity. Journal of Drainage and Irrigation Machinery Engin, 2020, 38(10): 991-996.
