Computation of the noise generated by a shallow cavity in a duct and test of a solution for lowering the noise

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Abstract

A pure tone phenomenon has been observed in a PWR line. The source has been identified to be generated in a valve and to be of cavity noise type. In this paper, two 2D Euler computations are presented: The first one concerns the configuration that was used for experiments on a scale model (air flow) in order to compare with the on site observations (steam flow) and the second one concerns a modified geometry that was also used experimentally in order to search for a solution. Both experimental and numerical results show that the tested solution (a 15° chamfer at the upstream corner of the cavity) gives a decrease of the oscillation amplitude.

Original languageEnglish
Title of host publication9th AIAA/CEAS Aeroacoustics Conference and Exhibit
Publication statusPublished - 1 Dec 2003
Externally publishedYes
Event9th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2003 - Hilton Head, SC, United States
Duration: 12 May 200314 May 2003

Publication series

Name9th AIAA/CEAS Aeroacoustics Conference and Exhibit

Conference

Conference9th AIAA/CEAS Aeroacoustics Conference and Exhibit, 2003
Country/TerritoryUnited States
CityHilton Head, SC
Period12/05/0314/05/03

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