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Experimental and Numerical Analysis of the small Scale LAPCAT II Scramjet Flow Path in High Enthalpy Shock Tunnel Conditions

Hannemann, Klaus and Martinez Schramm, Jan and Laurence, Stuart and Karl, Sebastian and Langener, Tobias and Steelant, Johan (2014) Experimental and Numerical Analysis of the small Scale LAPCAT II Scramjet Flow Path in High Enthalpy Shock Tunnel Conditions. Space Propulsion 2014, 2014-05-19 - 2014-05-22, Cologne, Germany.

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Official URL: http://www.propulsion2014.com


Dedicated experimental investigations of the different components of combined cycle propulsion systems are necessary for the understanding of the physical and chemical processes in both on and off-design conditions and the optimization of each individual component. The focus of the present study is put on the supersonic combustion ramjet. For this type of engine the design objective is a combustor with efficient mixing and combustion within the shortest possible length, but still robust enough to operate in various operational conditions. In the framework of the EU co-funded project LAPCAT II, a M=7.4 supersonic combustion ramjet (scramjet) powered small scale flight experiment (SSFE) configuration was designed. Since free jet testing of the complete combustion flow path (intake, combustor and nozzle) is a mandatory step within the design roadmap of future engines, ground based testing of the SSFE engine was conducted in the High Enthalpy Shock Tunnel Göttingen (HEG) of the German Aerospace Center (DLR). This type of facility allows duplication of flight conditions in excess of M=8. Here tests were performed simulating Mach 7.4 flight conditions in approximately 28 km altitude. The numerically predicted thrust of the engine could be confirmed in HEG utilizing optical tracking of the free flight wind tunnel model. Combining these experimental results with computed aerodynamic data of the complete SSFE showed that for a selected flight condition a positive aero propulsive balance of the complete configuration could be achieved.

Item URL in elib:https://elib.dlr.de/89068/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Paper-Nr. SP2014-2969350, Session 23
Title:Experimental and Numerical Analysis of the small Scale LAPCAT II Scramjet Flow Path in High Enthalpy Shock Tunnel Conditions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Martinez Schramm, JanUNSPECIFIEDhttps://orcid.org/0000-0002-8891-6253UNSPECIFIED
Karl, SebastianUNSPECIFIEDhttps://orcid.org/0000-0002-5558-6673UNSPECIFIED
Langener, TobiasInstitute of Aerospace Thermodynamics, Universität StuttgartUNSPECIFIEDUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings on CD-ROM
Keywords:Shock Tunnel, free flight force, measurement, hypersonic flow, airbreathing propulsion
Event Title:Space Propulsion 2014
Event Location:Cologne, Germany
Event Type:international Conference
Event Start Date:19 May 2014
Event End Date:22 May 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Micknaus, Ilka
Deposited On:28 Aug 2014 10:03
Last Modified:24 Apr 2024 19:55

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