Pneumatic Noise Study of Multi-Stage Sleeve Control Valve

This study considers the practical issue of severe noise observed in a multi-stage sleeve control valve within an engineering project. Employing computational fluid dynamics (CFD) methodology, we initially performed numerical simulations to analyze steady-state flow field valve. Subsequently, identified underlying factors contributing To assess aerodynamic valve, applied FW-H acoustic analogy theory and determined intensity distribution characteristics noise. Finally, validated simulation results against theoretical calculations. Our findings indicate that steam medium experiences high-speed due disturbances caused by various components resulting significant turbulence intensity. intense leads pressure fluctuations steam, serving as main catalyst for generation. The exhibits roughly symmetrical along pipe–valve system, with noticeable increases levels upstream downstream compared other regions. cloud map obtained from serves valuable reference analyzing locations where is generated. Comparing calculations at monitoring points, found error points was less than 5%, which proves effectiveness method. These provide essential data support detection valves, carrying implications applications.