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TMF test based validation of numerical methods for the analysis of heat-loaded walls

Gernoth, Andreas and Wurdak, Malte and Riccius, Jörg and Wiedmann, Dietmar and Schwarz, Waldemar and Brummer, Ludwig (2010) TMF test based validation of numerical methods for the analysis of heat-loaded walls. 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 25-28.Juli 2010, Nashville, TN.


Official URL: http://www.aiaa.org


The creation of validation data for CFD, thermal, structural and life time analyses of actively cooled thermally loaded wall structures of rocket engines by means of Thermo- Mechanical Fatigue (TMF) - tests is discussed in this paper. During a TMF test, only a small section of the hot gas wall of the real engine (the so called TMF panel) is tested. For such a TMF panel, realistic cooling conditions similar to a full scale rocket engine are chosen. The 2d measurement of the thermal field of the heat loaded structure provides (together with the measurement of the temperature, pressure and mass flow rate of the coolant of the TMF panel) data for the combined validation of the CFD analysis of the coolant flow and the thermal analysis of the wall structure. The measurement of the deformation of the thermally loaded structure provides (together with the already determined temperature distribution and the above mentioned pressure measurements of the cooling channels) data for the validation of the structural analysis of the thermally loaded structure. Counting the number of laser loading cycles (laser on-off) until the TMF panel fails (by cracks appearing on the laser loaded side of the cooling channels) provides data for the validation of (either post processing or damage parameter based) life time analyses of thermally loaded structures.

Item URL in elib:https://elib.dlr.de/68028/
Document Type:Conference or Workshop Item (Paper)
Title:TMF test based validation of numerical methods for the analysis of heat-loaded walls
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gernoth, AndreasAndreas.Gernoth (at) dlr.deUNSPECIFIED
Wurdak, MalteMalte.Wurdak (at) dlr.deUNSPECIFIED
Riccius, JörgJoerg.Riccius (at) dlr.deUNSPECIFIED
Brummer, LudwigAstriumUNSPECIFIED
Date:25 July 2010
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Cooling Channel Thermo Mechanical Fatigue
Event Title:46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Event Location:Nashville, TN
Event Type:international Conference
Event Dates:25-28.Juli 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Technologie
Deposited By: Gernoth, Andreas
Deposited On:11 Jan 2011 13:20
Last Modified:31 Jul 2019 19:30

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