Numerical Calculation for Effect of Fluid-structure Interaction on Flow Field Pressure in High-Flow Control Valve

Abstract

Abstract. According to the actual structure and working condition of a high-flow gas pressure control valve in cycle power generation project, 3-D model based on Fluid-structure Interaction (FSI) is set up. A combined calculation for turbulent flow and structure response of high-flow control valve was established, using two-way coupling method to study the effect of FSI of valve on flow field pressure. The results of flow field pressure and pressure drop are analysed, comparing with the calculated results without FSI. The analysis results indicate that, FSI has a significant effect on the flow field pressure and pressure drop of position on valve core. It cannot be ignored when studying a high-flow control valve. The 3-D simulation model and flow field pressure analysis based on FSI can provide an effective method for high-flow control valve research and design optimization.