Publication:
Validation and implementation of optical diagnostics for particle sizing in rocket motors

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Authors
Gomes, Paul V.
Subjects
Particle Sizers
Solid Rockets
Advisors
Netzer, David W.
Date of Issue
1993-12
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Aluminum oxide(Al2O3) particles of known size distribution were cast into a solid propellant which burned at temperatures less than the melting point of Al2O3. Thus, particles of known size distribution existed at the nozzle inlet and in the plume. Malvern particle sizing instruments were used to make measurements at these two location using a windowed subscale motor and the results were compared to the known distribution. In the motor, measurements were limited due to disruptive flow from the window purge gas. However, the unaffected larger modes were properly measured. In the plume, the measurements of the modes were quite accurate, but low signal strength resulted in some inaccuracies for the mass contained in each mode. A phase Doppler particle analyzer was adapted to an existing plume probe. Initial measurements at two radial locations were in good agreement with the expected size distribution
Type
Thesis
Description
Series/Report No
Department
Aeronautical Engineering
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
39 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
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