Engineering model of unsteady flow in a cavity /
R.C. Bauer and R.E. Dix.

Description

Main Author

Bauer, R. C.

Related Names

Dix, R. E., author.
Calspan Corporation
Arnold Engineering Development Center
United States. Air Force.

Language(s)

English

Published

Arnold Air Force Base, Tennessee : Arnold Engineering Development Center, Air Force Systems Command, United States Air Force, 1991.

Subjects

Boundary layer.
Unsteady flow (Aerodynamics)
Aeroacoustics.

Summary

A mathematical model was assembled from fundamental fluid dynamic relations and turbulent single-stream mixing zone relations to predict spectra, i.e., the frequency and amplitude, of unsteady pressures acting in a rectangular cavity exposed to an external flow parallel to the cavity opening. Characteristics of the approaching boundary layer are expected as inputs, thereby allowing computation of spectra for cases of mass-injection upstream of the cavity. The equations were compiled as a code (CAP) that can be run in less than 15 sec on a personal computer. Maximum dynamic loads acting on the contents of the cavity can be estimated, in addition to the primary frequencies of oscillation.

Note

Report was prepared by Calspan Corporation.
"Final Report: October 1989 throught September 1991."
"December 1991."

Physical Description

91 pages : illustrations, 28 cm

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