Summary
Two active cooling concepts were tested concerning their capabilities with respect to surface cooling in hypersonic flow. Film cooling was analysed in cold hypersonic flow at realistic Reynolds numbers. Cooling efficiency was found highly sensitive to injection geometry and flow inclination. Best performance was observed for helium with a heat flux reduction up to 90% compared to the non-cooled case. Transpiration cooling was thermally qualified in high enthalpy flow. The coolant was supplied through a porous material integrated in the surface. Substantial cooling could be achieved in the injection area and further downstream at low coolant flow rates. Optimal flow rates could be identified for several coolants.
Access provided by Autonomous University of Puebla. Download to read the full chapter text
Chapter PDF
Similar content being viewed by others
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
References
Esser, B., Gülhan, A., Schäfer, R.: Experimental Investigation of Thermal Fluid/Structure Interaction in High Enthalpy Flow. In: 5th Europ. Symp. on Aerothermodynamics for Space Vehicles, Cologne, ESA SP-563, pp. 275–280 (2004)
Gnemmi, P., Schäfer, H.J.: Grundlegende Untersuchungen zur Seitenstrahlsteuerung: Numerische Simulation der Wechselwirkung eines Kaltgasstrahls mit der Außenströmung. ISL, Saint Louis (2004)
Gülhan, A., Esser, B.: A Study on Heat Flux Measurements in High Enthalpy Flows. In: 35th AIAA Thermophysics Conference, June 11-14, Anaheim, CA, AIAA (2001)
Gülhan, A., Esser, B.: Arc-Heated Facilities as a Tool to Study Aerothermodynamic Problems of Reentry Vehicles. In: Lu, F.K., Marren, D.E. (eds.) Advanced Hypersonic Test Facilities. Progress in Astronautics and Aeronautics, AIAA, vol. 198, pp. 375–403 (2002)
Hald, H.: Faserkeramiken für heiße Strukturen von Wiedereintrittsfahrzeugen – Simulation, Test und Vergleich mit experimentellen Flugdaten. Ph.D. thesis, Univ. Stuttgart (2001)
Holden, M.S.: A study of flow separation in regions of shock wave – boundary layer interactions in hypersonic flow. AIAA Paper 78-1169 (1978)
Jung, K.: Mehrreihige Filmkühlung an gekrümmten Oberflächen. Dissertation, Univ. Darmstadt (2001)
Kohli, A., Thole, K.A.: Entrance Effects on Diffused Film-Cooling Holes. ASME, New York (1998)
Kovar, A., Schülein, E.: Comparison of experimental and numerical investigations on side jets in a supersonic cross flow. Royal Aeronautical Society, London (2004)
Krenkel, W.: Applications of Fibre Reinforced C/C-SiC Ceramics. Ceramic Forum Inter-national 80(8), E31–E38 (2003)
Lezuo, M.K.: Wärmetransport in H2-transpirativ gekühlten Brennkammerkomponenten, Ph.D. thesis, RWTH Aachen (1998)
Meinert, J.: Haftreibung und Wärmeübergang in einer turbulenten Grenzschicht bei Fremdgastranspiration. VDI, Düsseldorf (2000)
Radespiel, R., Longo, J.M.A., Brück, S.: Efficient numerical simulation of complex 3D flows with large contrast. In: 77th AGARD Fluid Dynamics Panel, Meeting and Symposium on Progress and Changes in CFD Methods and Algorithms, Sevilla, AGARD-CP-578, pp. 1–33 (1995)
Serbest, E.: Untersuchungen zur Anwendung der Effusionskühlung bei Raketenbrennkammern., Ph. D. Thesis, RWTH Aachen (2002)
Wittig, S., Thole, K.A.: Transonic Film-cooling Investigations: Effects of Hole Shapes and Orientations, ASME, New York, 35/96-222 (1996)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2008 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Esser, B., Gülhan, A. (2008). Qualification of Active Cooling Concepts in Ground Facilities. In: Gülhan, A. (eds) RESPACE – Key Technologies for Reusable Space Systems. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 98. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77819-6_7
Download citation
DOI: https://doi.org/10.1007/978-3-540-77819-6_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-77818-9
Online ISBN: 978-3-540-77819-6
eBook Packages: EngineeringEngineering (R0)