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RESEARCH PAPERS

Altitude Engine Test of a Turbofan Exhaust Gas Mixer to Conserve Fuel

[+] Author and Article Information
R. R. Cullom, R. L. Johnsen

NASA-Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio

J. Eng. Power 99(4), 645-649 (Oct 01, 1977) (5 pages) doi:10.1115/1.3446562 History: Received December 30, 1976; Online July 14, 2010

Abstract

A comparison of the specific fuel consumption was made with and without an internal mixer installed in a low bypass ratio, confluent flow turbofan engine. Tests were conducted at several Mach numbers and altitudes for core to fan stream total temperature ratios of 2.0 and 2.5 and mixing lengths of L/D = 0.95 and 1.74. For these test conditions, the specific fuel consumption improvement varied from 2.5 to 4.0 percent.

Copyright © 1977 by ASME
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