Some Effects of Secondary Injection of Gases into a Supersonic Flow

Author: Burden, Harvey Worth

Year: 1964

Degree: Engineer's thesis

Advisor: Zukoski, Edward E.

Committee Member: Unknown, Unknown

Option: Aeronautics

DOI: 10.7907/DRZK-W405

Abstract

An experimental investigation was conducted in order to determine some of the effects of injection of a secondary stream of gas into a supersonic primary airstream. The flow fields behind an orifice producing essential two-dimensional flow and behind that producing full three-dimensional flow were studied. The resulting shock patterns, wall static pressure profiles, and flow field characteristics are described,and use is made of a theoretical injectant penetration height to non-dimensionalize the results as much as possible. It has been possible to draw some conclusions concerning the nature of the flow field and pressure field disturbances caused by secondary injection.

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