Titlebook: RESPACE- Key Technologies for Reusable Space Systems; Results of a Virtual Ali Gülhan Conference proceedings 2008 Springer-Verlag Berlin He

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electrochemistry was a pivotal one, appeared in the sky of science as a new shining phenomenon but they disappeared rather quickly. It was due to either the historical events in Hungary or they did not continue their scientific research at high level because of the low financial support, or just en

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Large-Eddy Simulation of a Generic Space Vehicle,ow field. As a prove of the reliability of the used numerical method a comparison with experimental data was carried out showing a good qualitative agreement between the experimental and numerical data.

Priapism

Application of Transpiration Cooling for Hot Structures,termined resulting in sample under surface temperature reductions of 50-60%. Altogether, sample under surface temperature reductions of 64% for He, 65% for Ar, 67% for air and 70% for N. were detected. These test series verified that transpiration cooling can be applied successfully for hot structures at application relevant re-entry conditions.

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Large Eddy Simulation of Nozzle Jet - External Flow Interaction,edict mean flow quantities in closer agreement with experimental data than the turbulence models. Both prediction methods, however, underline the need to perform fully coupled simulations in order to capture the strong interaction between base and nozzle flow as reliably as possible.

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Transpiration Cooling Methods for the SpaceLiner,enge is the aerodynamic heating of the vehicle. This is discussed, and a possible solution for handling the extreme heatloads will be presented. The solution involves an innovative new way of transpiration cooling, using liquid water.

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General Introduction,e partners of this Virtual Institute after 3 years funding to continue their cooperation in other programs. Following this HGF request and chance the DLR Windtunnel Department of the Institute of Aerodynamics and Flow Technology took the initiative and established a network with the following partners:

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System Requirements on Investigation of Base Flow/Plume Interaction,cated in the windtunnel H2K and a parametric study on the influence of all main parameters was necessary, nozzles with different expansion ratios have been specified and operated at different operation conditions during windtunnel tests.

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Experimental Study of the Base Flow,asurements and high speed Schlieren visualizations were performed to study the flow topology for cold and warm nozzle flow at several pressure ratios. Among others, the study focuses on the identification of shock oscillations. Recorded spectra provide the dominating oscillation frequencies linked to flow conditions.