The application of holographic interferometry to the determination of asymetric three-dimensional density fields in free jet flow.
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Authors
Matulka, Robert Dale
Subjects
holography
interferometry
three-dimensional
asymmetric
three-dimensional density measurement
asymmetric field solution
interferometry
three-dimensional
asymmetric
three-dimensional density measurement
asymmetric field solution
Advisors
Collins, Daniel J.
Date of Issue
1970-06
Date
June 1970
Publisher
Monterey, California ; Naval Postgraduate School
Language
en_US
Abstract
The successful application of holographic interferometry , and an
associated mathematical reduction process , to the determination of an
asymmetric three-dimensional density field of an aerodynamic phenomenon
is reported.
An integral inversion method from the field of plasma physics has
been computerized, extensively evaluated and applied to the determination
of functions , both axisymmetric and asymmetric , which simulate
aerodynamic density fields.
The application of holographic interferometry has been extended
to provide multiple holograms about a test region, with sufficient
coverage to provide interferometric data for the successful solution
of the density field.
The analytical and experimental methods developed were applied
to an experimental axisymmetric test field , the supersonic flow from
a free jet, and shown to be comparable to a previous solution obtained
by the Abel inversion method. Further, the free jet was tilted to
provide a test field which was asymmetric in the plane of solution.
Comparison of the resulting asymmetric solution was shown to be self-consistent
with the previously obtained axisymmetric solution.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
NAVAIR A33-330-551-69
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.