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Effects of cavity dimensions, boundary layer, and temperature on cavity noise with emphasis on benchmark data to validate computational aeroacoustic codesThis report documents the results of an experimental investigation on the response of a cavity to external flowfields. The primary objective of this research was to acquire benchmark of data on the effects of cavity length, width, depth, upstream boundary layer, and flow temperature on cavity noise. These data were to be used for validation of computational aeroacoustic (CAA) codes on cavity noise. To achieve this objective, a systematic set of acoustic and flow measurements were made for subsonic turbulent flows approaching a cavity. These measurements were conducted in the research facilities of the Georgia Tech research institute. Two cavity models were designed, one for heated flow and another for unheated flow studies. Both models were designed such that the cavity length (L) could easily be varied while holding fixed the depth (D) and width (W) dimensions of the cavity. Depth and width blocks were manufactured so that these dimensions could be varied as well. A wall jet issuing from a rectangular nozzle was used to simulate flows over the cavity.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Ahuja, K. K.
(Georgia Tech Research Inst. Atlanta, GA, United States)
Mendoza, J.
(Georgia Tech Research Inst. Atlanta, GA, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Subject Category
Report/Patent Number
NAS 1.26:4653
Accession Number
Funding Number(s)
PROJECT: RTOP 505-59-52-01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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