Gas Valve Noise—A Review of Current Knowledge

Available information on valve noise is based largely on the results of experiments, with minimal interpretation with respect to the known behavior of fluid dynamic noise sources. This paper examines the potential for such interpretation and shows that it is possible to postulate different mechanisms of behavior for valves which should lead to improved normalization procedures. Measurements on valves with air flow suggest the presence of dipole noise, quadrupole noise, and shock‐turbulence interaction. Different valve types exhibit differing mixes of these noise mechanisms.