Flow Forces Prediction of a Spring-loaded Pressure Safety Valve with Numerical Models

Spring-loaded pressure safety valves are the key devices used for protecting pressure vessels and systems. In order to facilitate the design progress of spring-loaded pressure safety valves and get a better understanding of the flow forces, this paper conducted a series of numerical simulations for predicting the flow forces acting on the disc at various valve opening positions for different pressures ranging from 3 to 4 bar. 2D and 3D geometries as well as different turbulence models have been developed for improving the accuracy of the simulation. The results indicate that the two-dimensional model along with transition on SST model can simulate the turbulent flow within the flow domain effectively , according to the comparison with experimental data. In addition , it reveals that this study can be of great help to predict flow forces at the similar mechanical structure.