Beck, Walter (2009) Use of PSP in hypersonic and short-duration wind tunnels. Measurements on two Scramjet nozzles in H2K. Seminar Princeton University, 30. June 2009, Princeton, New Jersey, USA.
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A general overview of Pressure Sensitive Paint measurements carried out in the DLR Institute of Aerodynamics and Flow Technology will be given. Specifically, this talk will concentrate on the successful application of this technique to the measurement of surface pressures on two different Scramjet nozzles in a Mach 7 flow of the Hypersonic Wind Tunnel H2K of the DLR in Cologne. The agreement with results from pressure taps is very good. Physical insights into the flow phenomena could be obtained, and an optimization of the gas injection into the nozzle plenum chamber could be carried out. The influence of surface temperature gradients was assessed, as were error sources discussed. The utilization of PSP on a large, industry-scale wind tunnel was carried out successfully, pointing the way for the longer term aim of applying PSP to flows of much shorter duration, such as in the High Enthalpy Shock Tunnel HEG of the DLR in Göttingen.
|Document Type:||Conference or Workshop Item (Speech)|
|Title:||Use of PSP in hypersonic and short-duration wind tunnels. Measurements on two Scramjet nozzles in H2K|
|In ISI Web of Science:||No|
|Keywords:||Pressure sensitive paint; surface pressure distributions; Scramjet nozzle flows; hypersonic wind tunnel|
|Event Title:||Seminar Princeton University|
|Event Location:||Princeton, New Jersey, USA|
|Event Dates:||30. June 2009|
|Organizer:||Princeton University, Department of Mechanical and Aerospace Engineering, Research group Prof. Richard Miles|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Experimental Methods|
|Deposited By:||Ilka Micknaus|
|Deposited On:||10 Jul 2009 14:30|
|Last Modified:||29 Jul 2009 14:03|
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