The application of holographic interfermometry to the determination of the flow field around a right circular cone at angle of attack.
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Authors
Jagota, Ravi Chandar
Subjects
holography
flow visualization
conical flow
flow visualization
conical flow
Advisors
Collins, Daniel J.
Date of Issue
1970-12
Date
December 1970
Publisher
Monterey, California ; Naval Postgraduate School
Language
en_US
Abstract
The successful application of holography to the study of
three dimensional flow fields due to phase objects has been
reported in the literature. The present report extends this
technique to the study of density fields around opaque bodies
as would normally be encountered in wind tunnel experiments.
The density field around a ID degree half-angle cone at zero
and ten degree angle of attack has been investigated in the
Naval Postgraduate School supersonic wind tunnel. In these
experiments, the finite fringe method for the production of
interferograms has, for the first time, been applied to
holographic interferometry. The density field obtained from
the reduction of the interferograms was found to agree with
that obtained from an analytical solution of the governing
equations as reported by D. J. Jones in Reference 1. The
computer program used for the reduction of the interferograms
has been evaluated for the effect of the presence of the cone
and the shock wave and has been found to yield stable and
accurate results.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner