Noise Analysis & Flow Simulation in Angle Globe Valve with Different Cages

Authors

1 R&D Management at Parham Sanat Shayan

2 Assoc. Prof at Mashhad Payam noor university

3 Teaching at Novin Academic school

Abstract

The main objective of this paper is to study the characteristics of flow-induced noise in high pressure reducing valve (HPRV) and to provide some guidance for noise control. Based on computational fluid dynamics (CFD), numerical method was used to compute flow field. Ffowcs Williams and Hawkings Model was applied to obtain acoustic signals. The unsteady flow field shows that noise sources are located at the bottom of plug for valve without perforated plate, and noise sources are behind the plate for valve with perforated plate. Inlet pressure has great effects on sound pressure level (SPL). The higher inlet pressure will lead to larger SPL at high frequency. When the maximum Mach is close to 1, SPL at low frequency becomes very high. Therefore the advantage Ansys Fluent on Numerical Simulation Method have been used and variations in the intensity of current turbulency and frequency variations in different noise have been studied. For this simulation via an angle globe valve with two inch size has been used with a water vapor that is analyzed in two cage in simple & perforated Cage.

Keywords

Main Subjects

References

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Journal of Solid and Fluid Mechanics
Volume 8, Issue 4
January 2019
Pages 261-271

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