elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF LIQUID FILM COOLING IN SMALL ROCKET ENGINES

Soller, S. and Behr, R. and Grauer, F. and Claramunt, K. and Dinescu, C. and Fiorini, D. and Peveroni, L. and Simonini, A. and General, S. and Kirchberger, Ch. and Strauss, F. and Steelant, J. (2019) EXPERIMENTAL AND NUMERICAL INVESTIGATION OF LIQUID FILM COOLING IN SMALL ROCKET ENGINES. In: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. 8th European Conference for Aeronautics and Space Sciences EUCASS, 1. - 4. Jul. 2019, Madrid, Spain. DOI: 10.13009/EUCASS2019-150

[img] PDF
1MB

Abstract

Within the scope of a GSTP project, a Belgian-German research team performed experiments and simulations to characterise the behaviour of a liquid cooling film and to provide benchmark data for simulation models. The experiments were performed at DLR's M11.1 air vitiator test facility in Lampoldshausen, Germany. Ethanol was used as film coolant. Apart from being a potential renewable hydrocarbon fuel, ethanol is a suitable substitute fluid for monomethyl-hydrazine, which it is currently being used as propellant and film coolant in small liquid rocket engines. Compared to the situation in a real rocket engine, the experiment was designed to simplify the boundary conditions for the simulations by avoiding chemical reactions of the film with the hot gases as far as possible and to limit the phenomena subject to investigation to heat and mass transfer effects of a liquid cooling film subjected to heating and shear forces. The experimental setup used a planar film injector in a rectangular hot gas duct. Additionally to measurements of the pressure and temperature of the fluids at inlet and outlet of the test section, thermocouples were installed in the film cooled channel wall to provide information on the axial evolution of the film cooling efficiency. Furthermore, the channel provides optical access for nonintrusive measurement techniques. The von-Karman-Institute used this access to apply laser-based measurements of the temperature of the liquid film. DLR used a dedicated Background-Oriented Schlieren (BOS) technique to provide additional information on the evolution of the film thickness. Several tests have been performed in spring 2019. The test data have been analysed and are currently being used to benchmark simple engineering models as well as high-fidelity CFD models to predict the behaviour of liquid cooling films in rocket engines.

Item URL in elib:https://elib.dlr.de/130574/
Document Type:Conference or Workshop Item (Speech)
Title:EXPERIMENTAL AND NUMERICAL INVESTIGATION OF LIQUID FILM COOLING IN SMALL ROCKET ENGINES
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Soller, S.ArianeGroup GmbH, Taufkirchen (D)UNSPECIFIED
Behr, R.ArianeGroup GmbH, Taufkirchen (D)UNSPECIFIED
Grauer, F.ArianeGroup GmbH, Taufkirchen (D)UNSPECIFIED
Claramunt, K.Numeca International, Brussels (B)UNSPECIFIED
Dinescu, C.Numeca International, Brussels (B)UNSPECIFIED
Fiorini, D.Von-Karman-Institute for Fluid Dynamics, Rhode-St.-Genèse (B)UNSPECIFIED
Peveroni, L.Von-Karman-Institute for Fluid Dynamics, Rhode-St.-Genèse (B)UNSPECIFIED
Simonini, A.Von-Karman-Institute for Fluid Dynamics, Rhode-St.-Genèse (B)UNSPECIFIED
General, S.Stephan.General (at) dlr.dehttps://orcid.org/0000-0001-5606-882X
Kirchberger, Ch.Christoph.Kirchberger (at) dlr.dehttps://orcid.org/0000-0002-7574-2581
Strauss, F.Friedolin.Strauss (at) dlr.dehttps://orcid.org/0000-0002-1385-4326
Steelant, J.ESA, Noordwijk (NL)UNSPECIFIED
Date:2019
Journal or Publication Title:Proceedings of the 8th European Conference for Aeronautics and Space Sciences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.13009/EUCASS2019-150
Status:Published
Keywords:liquid film cooling, Backgroud-Oriented Schlieren, laser induced fluorescence, liquid film lenght
Event Title:8th European Conference for Aeronautics and Space Sciences EUCASS
Event Location:Madrid, Spain
Event Type:international Conference
Event Dates:1. - 4. Jul. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Antriebsystemtechnik - Schubkammertechnologie
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Propellants
Institute of Space Propulsion > Engineering
Deposited By: Hanke, Michaela
Deposited On:18 Nov 2019 09:23
Last Modified:13 Jan 2020 11:11

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.