Gross, A. and Haidn, O. and Stark, R. and Zeiss, W. and Weber, C. and Weiland, C. (2001) Experimental and Numerical Investigation of Heat Loads in Separated Nozzle Flow. In: 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Salt Lake City, UT, 8 - 11. July 2001.
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2-D numerical nozzle flow simulations and cold gas subscale nozzle experiments are conducted to gain a better understanding of the various mechanisms that cause heat loads in nozzles. The 2-D numerical simulations account for non-equilibrium chemistry and show post-combustion with the entrained ambient air but cannot sufficiently explain the wall heat loads observed in the experiments. Obviously, 2-D numerics lack the physics to explain 3-D phenomena. Hence, sub scale cold gas nozzle experiments are chosen to study unsteady and 3-D effects since they are more efficient, more realistic and less costly than unsteady 3-D computations. In addition to the common diagnosis tools an infrared camera is used to visualize wall heat loads. These experiments yield 3-D streamwise structures reminiscent of Görtler vortices which may have a significant effect on the wall heat loads.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||LIDO-Berichtsjahr=2001, monograph_id=AIAA 2001-3682,|
|Title:||Experimental and Numerical Investigation of Heat Loads in Separated Nozzle Flow|
|Journal or Publication Title:||37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit|
|Event Title:||37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, Salt Lake City, UT, 8 - 11. July 2001|
|Organizer:||American Institute of Aeronautics and Astronautics|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||E -- no assignement|
|Institutes and Institutions:||Institute of Space Propulsion|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||06 Jan 2010 13:54|
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