Title

Aerodynamic Noise Simulation In Sonic Fatigue Facility

Date

1966

Index Abstract

Coming Soon

Photo Quality

Not Needed

Report Number

AFFDL TR 66-112

Creator

Lyon, R. H.

Gordon, C. G.

Stern, R.

Wiener, F. M.

Corporate Author

Bolt Beranek And Newman Inc Cambridge Mass

Laboratory

Air Force Flight Dynamics Laboratory

Extent

72

Identifier

AD0648022

Access Rights

Distribution of this document is unlimited

Distribution Classification

1

Contract

AF 33(615)-1290

DoD Project

4437

DoD Task

443701

DTIC Record Exists

No

Distribution Change Authority Correspondence

None

Abstract

The possibility of simulating a turbulent boundary-layer noise environment using the air-flow capability of the RTD Sonic Fatigue Facility is investigated. The philosophy is adopted that it is the mechanical power absorbed by the structure from the environment that is to be duplicated. Calculations are developed that allow the prediction of the mechanical power injected into a structure by a turbulent boundary layer (TBL), and by a turbulent wall-jet. The possibility of replacing the power injected by the TBL by using turbulent wall-jets impinging on a structural model of a section of a supersonic transport is studied. Results indicate that high-frequency excitation (above 1kHz) can be adequately simulated, but that the air-flow capabilities of the facility would be exceeded by an attempt to excite a structure as large as the one chosen by a set of wall-jets at lower frequencies.

Report Availability

Full text available

Date Issued

1966-11

Provenance

Lockheed Martin Missiles & Fire Control

Type

report

Format

1 online resource