A Review of the CFD Method in the Modeling of Flow Forces

Hydraulic valves are key components of fluid power systems. They control the flow rate and pressure in hydraulic lines, actuator motion, direction. Valves that or can be divided into two main categories: spool-type valves, where similar to piston inside a sleeve with orifices; seat-type which poppet seat opens closes flow. Forces induced on valve during oil crucial valve’s operational capabilities. calculated using formula originating from momentum conservation equation for two-dimensional volume. Increasing demands accuracy cause forces much more accurately than when analytical formula. Therefore, computational dynamics (CFD) simulations only effective tool their calculation. This paper reviews CFD approaches used calculating valves. It presents typical evaluating The oldest most common conducted fixed position defined conditions, do not cover all forces. dynamic complex models fluid–structure interaction (FSI) techniques. available FSI techniques simulation transient forces, mainly whose component is determined by occurring