Key points are not available for this paper at this time.
This study employed dynamic meshing technology to investigate the pressure field, velocity field and cavitation area in the single-seat control valve are studied. The results show that the cavitation degree on the surface of the valve core decreases with the decrease of the opening degree during the closing process of the valve. The degree of cavitation on the sealing surface of the valve seat increases as the opening decreases. During the dynamic reduction of the valve opening, the change trend of the vapor phase volume inside the valve body is consistent with the overall trend of the steady-state cavitation simulation. When the inlet pressure of the valve fluctuates, the cavitation phenomenon inside the valve body will change, and the overall trend will increase with the increase of the inlet pressure. When the inlet pressure of the regulating valve changes sinusoidally, the change trend of the cavitation degree in the valve is consistent with the change of the pressure inlet. When the inlet pressure changes linearly, the cavitation degree in the valve will fluctuate violently.
Cao et al. (Mon,) studied this question.