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Krülle, G. and Mayer, W. (1994) Injection, Atomization and Mixing of Propellants in Liquid Rocket Engines Using Coaxial-Injectors. ICLASS 1994; 6th International Conference on Liquid Atomization and Spray Systems; July 18 - 22, 1994; Rouen, France.
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Abstract
The object of the paper is to elucidate the injection, atomization and mixing processes in high-pressure liquid rocket engines. Theoretical studies of coaxial spray generation, single injector experiments under ambient and elevated pressure conditions using simulation fluids and the attempt to model the atomization process are described. The most important fluid mechanical processes leading to coaxial atomization and mixing as turbulence in the liquid jet, surface instability, surface wave growth, droplet detachment (primary break-up), droplet break-up (secondary break-up),evaporation and dispersion are identified and investigated. In the proposed atomization model, submodels for the liquid break-up and droplet flow are solved in conjunction with the calculation of mean flow properties of gas and liquid flow. The model has been applied tovarious injection conditions and the simulation results are compared with experimental data.
| Item URL in elib: | https://elib.dlr.de/24825/ | |||||||||
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| Document Type: | Conference or Workshop Item (Paper) | |||||||||
| Additional Information: | LIDO-Berichtsjahr=1994, pages=8, | |||||||||
| Title: | Injection, Atomization and Mixing of Propellants in Liquid Rocket Engines Using Coaxial-Injectors. | |||||||||
| Authors: |
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| Date: | 1994 | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Page Range: | pp. 734-741 | |||||||||
| Status: | Published | |||||||||
| Keywords: | rocket engine, coaxial injector, propellant atomization and mixing, jet break-up, surface stability, two phase flow, droplet evaporation, large eddy simulation, spray diagnostics, flow visualization | |||||||||
| Event Title: | ICLASS 1994; 6th International Conference on Liquid Atomization and Spray Systems; July 18 - 22, 1994; Rouen, France | |||||||||
| HGF - Research field: | UNSPECIFIED | |||||||||
| HGF - Program: | Space (old) | |||||||||
| HGF - Program Themes: | W RP - Raumtransport | |||||||||
| DLR - Research area: | UNSPECIFIED | |||||||||
| DLR - Program: | W RP - Raumtransport | |||||||||
| DLR - Research theme (Project): | UNSPECIFIED | |||||||||
| Location: | Lampoldshausen | |||||||||
| Institutes and Institutions: | Institute of Space Propulsion > Institut für Chemische Antriebe und Verfahrenstechnik | |||||||||
| Deposited By: | DLR-Beauftragter, elib | |||||||||
| Deposited On: | 02 Apr 2006 | |||||||||
| Last Modified: | 27 Apr 2009 05:35 |
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