Interaction and Penetration of Fuel Jets in Supersonic Crossflows

Isaac, JJ and Ramesh, NR and Sreenath, GS and Rajashekar, C and Shyamsundar , SR and Baskaran, M and Venugopalan, P and Gollakota, S (1994) Interaction and Penetration of Fuel Jets in Supersonic Crossflows. In: 2nd National Conference on Air-breathing Engines and Aerospace Propulsion, December 1994, VSSC, Trivandrum.

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Abstract

The extent of fuel interaction and penetration in a supersonic crossflow governs the ignition and combustion characteristics of a supersonic combustor. A comprehensive series of experiments have been conducted to determine the interaction and penetration characteristics. The cases of injection from a plain wall, stepped wall and wedge strut as well as normal, parallel and parallel/normal injection were considered It was found that the extent of jet penetration at a given distance downstream was governed by the jet/air momentum ratio and the injector port diameter. It was found that jet penetration in a supersonic cross flow was higher than in a subsonic cross flow. For a supersonic cross flow, injection behind a step led to higher jet penetration than injection ahead of a step. Injection ahead of a step yielded a higher penetration than injection from a plain wall, Parallel/normal injection from a wedge strut appeared to indicate good initial mixing.

Item Type: Conference or Workshop Item (Paper)
Subjects: AERONAUTICS > Aircraft Propulsion and Power
Depositing User: Scientist C RAJASHEKAR
Date Deposited: 18 Jul 2013 08:48
Last Modified: 18 Jul 2013 08:48
URI: http://nal-ir.nal.res.in/id/eprint/11738

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