Analysis of the effect of heated jet flow on the far field radiation from a noise sourceThe influence on jet noise radiation of the interaction with the heated moving flow of a parallel twin jet is investigated. An analytical model of jet shielding is developed which consists of the sound field emitted from a stationary, discrete frequency point source impinging on a cylinder of locally parallel flow. The zones in which the various shielding mechanisms dominate are analyzed using the model. The effects of parameters such as jet temperature and flow speed are examined. It is found that the results obtained using the model are comparable to the experimental results for a point noise source impinging on a subsonic isothermal air jet.
Document ID
19830044479
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gerhold, C. (Texas A & M University College Station, TX, United States)
Date Acquired
August 11, 2013
Publication Date
November 1, 1982
Subject Category
Acoustics
Report/Patent Number
ASME PAPER 82-WA/NCA-4
Meeting Information
Meeting: American Society of Mechanical Engineers, Winter Annual Meeting