Numerical Assessment of Noise Generated by Flow through Multi Hole Plate
This paper addresses the acoustical behavior, specifically of air flow through a single and multi holed plates. Numerical investigations were performed to understand the noise produced by turbulent pipe flow through orifice plates containing single and multiple cylindrical holes. Number of holes used was 1, 4, 9, 16 and 25. EDR of 0.6 is maintained for the plates used for the test. Two step hybrid approaches consisting of LES and FW-H method has been used for flow and acoustic computation.