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Experiments on Nitrogen and Hydrogen Transpiration Cooling in Supersonic Combustion Ramjets (Scramjets)

Strauss, Friedolin and Witte, Jan and Manfletti, Chiara and Schlechtriem, Stefan (2018) Experiments on Nitrogen and Hydrogen Transpiration Cooling in Supersonic Combustion Ramjets (Scramjets). In: Space Propulsion 2018. Space Propulsion 2018, 14.-18. Mai 2018, Sevilla, Spanien.

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One of the main challenges concerning scramjet propulsion systems is the efficient and sufficient cooling of the engine’s components. A promising cooling approach could be the method of transpiration / effusion cooling, where the coolant flows through a porous wall prior to entering the engine’s main hot gas flow. This could establish a homogeneous and protective coolant layer at the engine wall, protecting the areas with high thermal loads and the engine structure from thermal damage. The Institute of Space Propulsion of the German Aerospace Center (DLR) has developed a research test bench to investigate the applicability of transpiration cooling systems to scramjets. This publication compares and summarizes the results on cooling performance using nitrogen and hydrogen as coolants. Findings with and without shock generator are opposed to each other. Further research requirements are discussed.

Item URL in elib:https://elib.dlr.de/129995/
Document Type:Conference or Workshop Item (Speech)
Additional Information:SP2018_00113
Title:Experiments on Nitrogen and Hydrogen Transpiration Cooling in Supersonic Combustion Ramjets (Scramjets)
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Strauss, Friedolinfriedolin.strauss (at) dlr.dehttps://orcid.org/0000-0002-1385-4326
Witte, JanJan.Witte (at) dlr.deUNSPECIFIED
Manfletti, ChiaraChiara.Manfletti (at) esa.intUNSPECIFIED
Schlechtriem, Stefanstefan.schlechtriem (at) dlr.dehttps://orcid.org/0000-0002-3714-9664
Date:18 May 2018
Journal or Publication Title:Space Propulsion 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Transpiration Cooling, Fluid Dynamics, Thermodynamics, Scramjet, Hypersonics, High-Speed Air Breathing Propulsion, Ground Testing
Event Title:Space Propulsion 2018
Event Location:Sevilla, Spanien
Event Type:international Conference
Event Dates:14.-18. Mai 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Strauss, Friedolin
Deposited On:31 Oct 2019 10:41
Last Modified:31 Oct 2019 10:41

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