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Prediction of electron concentration reductions in re-entry flow fields due to electrophilic liquid and water injection.Discussion of an analytical model which leads to predictions of reductions in electron concentrations in reentry flow fields due to the injection of electrophilic liquids and water. The processes incorporated into the model are: penetration and breakup of the liquid jet, droplet acceleration and vaporization, expansion of the liquid spray due to droplet vaporization, electrophilic vapor diffusion, heterogeneous and homogeneous charged species recombination kinetics and homogeneous electron attachment kinetics. Spray boundary calculations are shown to be in good agreement with photographic observations of water and Freon E-3 sprays in wind tunnel tests of a scale model RAM C-III flight vehicle. Fixed-bias electrostatic probe data taken during the RAM C-III flight are interpreted in terms of effective jet penetration distances - which are shown to be consistent with calculations using the present model.
Document ID
19720052871
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pergament, H. S.
Mikatarian, R. R.
Kurzius, S. C.
(AeroChem Research Laboratories, Inc. Princeton, N.J., United States)
Date Acquired
August 6, 2013
Publication Date
June 1, 1972
Subject Category
Space Vehicles
Report/Patent Number
AIAA PAPER 72-670
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Fluid and Plasma Dynamics Conference
Location: Boston, MA
Start Date: June 26, 1972
End Date: June 28, 1972
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
72A36537
Funding Number(s)
CONTRACT_GRANT: NAS1-10709
Distribution Limits
Public
Copyright
Other

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