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Characterization of Cryogenic Injection at Supercritical Pressure

Mayer, W. and Telaar, J. and Branam, R. and Schneider, G. (2001) Characterization of Cryogenic Injection at Supercritical Pressure. In: 37th Joint Propulsion Conference and Exhibit. 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Salt Lake City, UT, 8 - 11. July 2001.

Full text not available from this repository.

Abstract

Understanding the Complex environment of the rocket chamber involves good knowledge of the injection phenomena. Understanding the injection phenomena allows the rocket designer to employ time and cost saving modeling tools to design a higher performance rocket engine. The rocket engine performance is highly dependent on the injection processes within the chamber. This project looked at injection processes in the supercritical regime of the injected fluid, cryogenic nitrogen, in order to better understand realistic conditions in the rocket engines of today. The investigation considered test conditions from 4.0 to 6.0 MPa at two different injection velocities and temperatures. Experimental data taken by Raman imaging and Shadowgraphy were compared to computational models for these various test conditions. The test data allows comparisons of density, length scales and jet spreading angles. The results validate the computational models fairly well and agree with classical theory.This agreement allows further use of the models to predict injection behavior under these operating conditions. Also, further comparisons were made between the various test cases using the computational models to consider the effects of pressure, velocity and temperature variations on the cryogenic jet.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001, monograph_id=AIAA 2001-3275,
Title:Characterization of Cryogenic Injection at Supercritical Pressure
Authors:
AuthorsInstitution or Email of Authors
Mayer, W.UNSPECIFIED
Telaar, J.UNSPECIFIED
Branam, R.UNSPECIFIED
Schneider, G.UNSPECIFIED
Date:2001
Journal or Publication Title:37th Joint Propulsion Conference and Exhibit
Editors:
EditorsEmail
AIAA, UNSPECIFIED
Status:Published
Event Title:37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Salt Lake City, UT, 8 - 11. July 2001
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):E -- no assignement
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Monika Lohmiller
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:55

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