Analysis of transient flow field characteristics during the closing process of water distributor valve core

Abstract

The integrated water distributor (IWD) is the adjustment terminal during the interval injection process. Its quality and performance are directly related to the effect of layered water injection. The IWD’s flow field is considered the research object, and the transient simulation is developed with Fluent dynamic grid and Fluid-Structure Interaction technology. The internal flow of the IWD during closing is simulated, and the mechanical behavior of the valve core is analyzed. The results show that: as the valve opening decreases, the high-speed areas appear at the throat of the valve core and the upper wall of the valve outlet; the throat of the valve presents a higher pressure gradient; the most serious deformation point appears on the lower side of the valve core, and the deformation increases as the valve core move down; the maximum equivalent strain occurs at the root of the valve core and increases as the valve core moves down.