Study of penetration of a liquid injectant into a supersonic flow
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Authors
Kolpin, M.A.
Horn, K.P.
Reichenbach, R.E.
Subjects
Advisors
Date of Issue
1968-05
Date
Publisher
American Institute of Aeronautics and Astronautics (AIAA)
Language
Abstract
A study of normal and lateral spray penetration for small-diameter, high-pressure, liquid jets issuing at an angle to a uniform supersonic stream is reported. The experimental program was carried out in the 4-in. by 4-in. blowdown supersonic wind tunnel of the Naval Postgraduate School in Monterey. The flowfield is observed by means of a schlieren system, and the spray distribution is indicated by the light scattered by the liquid droplets. Data on normal penetration, in good agreement with data inferred front other investigations, indicate that a single-parameter correlation exists between the properly nondimensionalized penetration height and the injection pressure ratio. Injecting the coolant at a forward angle to the flow produces no substantial change in the penetration height. The data on lateral penetration show the spray width behind the jet to the proportional to the jet diameter with only a weak dependence on the injection pressure ratio. Analytical nodels proposed by previous investigators are critically examined in the light of our results. No single model predicts a proper scaling law for both normal and lateral penetration.
Type
Article
Description
The article of record as published may be found at http://dx.doi.org/10.2514/3.4609
Series/Report No
Department
Aeronautics and Astronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
This work was carried out under Air Force Contract F04695-67-C-0158
Funder
This work was carried out under Air Force Contract F04695-67-C-0158
Format
6 p.
Citation
AIAA Journal, v. 6, no.5, May 1968, pp. 853-858
Distribution Statement
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.