Stromingsgeïnduceerde resonantie in een holte afgedekt door een rooster / Flow excited resonance in a cavity covered by a grid: theory and experiments
article
Sound generation by flow past a cavity covered by a grid with louvers with rectangular cross section at 45’ to the flow direction is analyzed. Simple models for the aero-acoustic source are presented for two cases: 1) grazing flow past the grid, and 2) grazing flow past the grid in combination with flow through the grid into the cavity. The source strength and the resonance conditions as predicted by the source models are compared to data from wind tunnel experiments. The use of ramps and arrays of roughness elements as suppression devices is evaluated.
TNO Identifier
282256
Source
NAG Nederlands Akoestisch Genootschap Journaal, 110, pp. 13-34.
Publisher
Nederlands Akoestisch Genootschap NAG
Collation
22 p.
Pages
13-34
Files
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