Abstract/Details

Evaluation of hydro-mechanical pulsation for rocket injector research


2010 2010

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Abstract (summary)

The Propulsion Research Center at the University of Alabama in Huntsville has designed and built a hydro-mechanical pulsator to simulate the pressure fluctuations created by high frequency combustion instability. The pressure response characteristics were evaluated in an atmospheric test rig using filtered de-ionized water as the working fluid. The outlet of the pulsator was connected to a swirl injector post to provide downstream flow resistance. Previous low pressure and mass flow experimental data revealed a complex relationship between the control parameters and the pulsation response. For each test, the average mass flow rates of the waste water, water lost through the seals, and injector mass flow rates are measured. A dynamic pressure transducer at the pulsator exit measures and records the pressure waveform. Pulsation magnitude, reliability, repeatability, pulsation effects, and detailed variable control are examined. The data shows the pulsator is capable of generating 30% pulsation at 1575 Hz input. The repeatability of the pulsator is questionable because the standard deviations exceeded 40% of the average. The detailed data obtained during this research provides is sufficient to develop a pulsator tuning procedure for future applications.

Indexing (details)


Subject
Aerospace engineering
Classification
0538: Aerospace engineering
Identifier / keyword
Applied sciences
Title
Evaluation of hydro-mechanical pulsation for rocket injector research
Author
Wilson, Matthew B.
Number of pages
107
Publication year
2010
Degree date
2010
School code
0278
Source
MAI 49/03M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781124416526
Advisor
Moser, Marlow
University/institution
The University of Alabama in Huntsville
University location
United States -- Alabama
Degree
M.S.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
1487678
ProQuest document ID
840620268
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/840620268/abstract
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