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RESEARCH PAPERS: Other Technical Papers

Base Flow Characteristics of a Linear Aerospike Nozzle Segment

[+] Author and Article Information
T. J. Mueller, W. P. Sule

Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Ind.

J. Eng. Ind 95(1), 353-359 (Feb 01, 1973) (7 pages) doi:10.1115/1.3438135 History: Received July 31, 1972; Online July 15, 2010

Abstract

The separated base flow region within a linear aerospike nozzle segment is investigated experimentally in an ejector-diffuser system. The nozzle-diffuser system and base pressure characteristics are described over the pressure ratio range from the “open wake” to the “closed wake” operation. Schlieren photographs and static pressure distributions along the test section centerline and top contour describe the transition, from “open wake” to “closed wake” flow fields. Base pressure and static pressure distributions are utilized to present the effects of a ramp diffuser. The effects of base bleed on the base pressure ratio and structure of the nozzle flow field are also presented.

Copyright © 1973 by ASME
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