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通过设计泵的模型对轴向柱塞泵的配流盘的切口(V型槽)附近喷射流动进行可视化分析。使用高速摄像机从轴向和垂直于轴的方向能够清晰地观测到空化现象。另一方面,应用三维DES(Detached Eddy Simulation,分离涡模拟)湍流空化模型进行CFD仿真分析来估计空化现象的发生和区域。通过比较在3 MPa和5 MPa压力(300 r/min和600 r/min泵转速)条件下空化的仿真和实验结果,表明CFD仿真与可视化实验有很好的一致性,对于估计空化的范围是非常有用的。进一步得到了24 MPa(2400 r/min泵转速)情况下的空化云图并讨论了气蚀的产生。最后通过使用3个V型槽的配流盘成功地抑制了空化效应。
Visually analyzes the jet flow near the cut-outs (V-grooves) in the port plate of the axial piston pump by designing a pump model. The use of high-speed cameras from the axial and perpendicular to the direction of the axis can be clearly observed cavitation phenomenon. On the other hand, a three-dimensional (Detached Eddy Simulation) turbulence model was used to estimate the occurrence and area of cavitation. By comparing the simulation and experimental results of cavitation under 3 MPa and 5 MPa pressure (300 r / min and 600 r / min pump speed), it shows that the CFD simulation is in good agreement with the visualization experiment. For the purpose of estimating cavitation Range is very useful. The cavitation cloud at 24 MPa (2400 r / min pump speed) was further obtained and cavitation was discussed. Finally, the cavitation effect was successfully suppressed by the use of three V-grooved valving plates.