Analysis of flow field characteristics of cycloidal pump based on fluid solid interaction

Abstract At present, in the aspect of numerical simulation a cycloid pump, most researchers are based on CFD (computational fluid dynamics) to analyze pump under different operating conditions (such as speed, temperature), and performance FSI (fluid solid interactions) is rare. Firstly, model cycloidal established COMSOL. The results obtained by applying verified experiments. Then, flow rotating region inlet outlet cavities analyzed. Finally, through further analysis internal flow, improved design scheme put forward, increased 5.8% compared with unoptimized, pulsation decreased 32.7%. discharge 16.3%, rate 47%. It provides reference for other research, improvement design.