【摘要】 为研究砾石泵内部流场分布规律,在流固耦合理论的指导下,本文采用软件仿真的方式对某砾石泵内部流场规律进行了研究。文中首先根据砾石泵内部结构建立其三维流体域的简化模型,其次以单相清水为介质,进行砾石泵外特性试验与仿真并进行对比,结果显示:试验值与仿真值误差在6%以内,有效验证了砾石泵流体仿真模型的正确性;再次利用xflow软件对砾石泵进行流固耦合分析,得到了砾石泵内部流体压力与速度分布规律,并预测了内部涡流现象的发生。这为砾石砂泵内部机构的优化设计提供了一定的理论依据。更多还原

【Abstract】 For the purpose of research, the internal flow field of a gravel pump was studied by means of software simulation under the guidance of fluid structure coupling theory. At first, the simplified three-dimensional fluid domain model was established according to the internal structure of the gravel pump. Then, the experiment and simulation of the external characteristics of the gravel pump were carried out and compared, with single-phase clean water as the medium. The results showed that the error between the test value and the simulation value was within 6%, which effectively verified the correctness of the fluid simulation model of the gravel pump. Finally, the XFlow software was used to analyze the fluid structure coupling of the gravel pump; the distribution law of the internal fluid pressure and velocity of the gravel pump was obtained, and the occurrence of internal eddy current was predicted.This provides a theoretical basis for the optimization design of the internal mechanism of the gravel pump.更多还原