Accession Number : AD0727053

Title :   Model Study of the Exhaust Flow Noise of the Proposed AEDC High Reynolds Number Tunnel.

Descriptive Note : Final rept. Jun 69-Jun 70,

Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AIR FORCE STATION TENN

Personal Author(s) : Robertson,J. E.

Report Date : JUL 1971

Pagination or Media Count : 90

Abstract : A study to evaluate the exhaust noise environment of a proposed high Reynolds number tunnel (HIRT) has been conducted. During an earlier phase of this study, prediction of the noise environment resulting from both the starting transient and steady-stage operation of the facility was performed. Also, a model test program was specified to experimentally evaluate the exhaust flow noise. The results of the model test program and new predictions of the full-scale HIRT exhaust noise, based on the model data, are the subjects of the report. (Author)

Descriptors :   (*TRANSONIC WIND TUNNELS, EXHAUST SYSTEMS), (*NOISE, TRANSONIC WIND TUNNELS), FLUID DYNAMICS, ACOUSTIC PROPERTIES, MODEL TESTS, SCALE, SHOCK WAVES, MATHEMATICAL PREDICTION, EXHAUST VALVES, INSTRUMENTATION, CURVE FITTING, REYNOLDS NUMBER

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE