Publication:
The application of holographic interfermometry to the determination of the flow field around a right circular cone at angle of attack.

Loading...
Thumbnail Image
Authors
Jagota, Ravi Chandar
Subjects
holography
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
Collections