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Rutschmann, Sabrina and Martinez Schramm, Jan (2011) Stagnation-Point Heat Flux on Spheres in Hypersonic High Temperature Flows. STAB Workshop, 09. - 10. Nov. 2011, Göttingen, Deutschland.
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Abstract
The stagnation-point heat flux on spheres in the High Enthalpy Shock Tunnel Göttingen (HEG) in the German Aerospace Center (DLR) provides information on the total enthalpy of the gas in the reservoir. An easy and fast way for prediction of the measured stagnation-point heat flux is desired. Due to temperatures in the reservoir up to 10 000K at high enthalpy conditions, the gas molecules do not have enough time to recombine while passing the nozzle. Known theoretical correlations do not consider already dissociated free stream in chemical non-equilibrium, so that useful results are not possible. An efficient method for the determination of the stagnation-point heat flux in hypersonic high temperature flows on spheres using user friendly numerical simulation tools, that predicts the heat flux better than theoretical correlations used so far is presented.
| Item URL in elib: | https://elib.dlr.de/71479/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
| Title: | Stagnation-Point Heat Flux on Spheres in Hypersonic High Temperature Flows | ||||||||||||
| Authors: |
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| Date: | 10 November 2011 | ||||||||||||
| Refereed publication: | No | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Page Range: | pp. 40-41 | ||||||||||||
| Series Name: | Stab Jahresbericht 2011 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | stagnation-point heat flux, hypersonic flows, HEG, high enthalpy, nozzle flow calculations | ||||||||||||
| Event Title: | STAB Workshop | ||||||||||||
| Event Location: | Göttingen, Deutschland | ||||||||||||
| Event Type: | Workshop | ||||||||||||
| Event Dates: | 09. - 10. Nov. 2011 | ||||||||||||
| Organizer: | Deutsches Zentrum für Luft- und Raumfahrt e.V | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Space | ||||||||||||
| HGF - Program Themes: | Space Transportation | ||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||
| DLR - Program: | R RP - Space Transportation | ||||||||||||
| DLR - Research theme (Project): | R - SHEFEX Programm (old) | ||||||||||||
| Location: | Göttingen | ||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Spacecraft | ||||||||||||
| Deposited By: | Rutschmann, Sabrina | ||||||||||||
| Deposited On: | 16 Dec 2011 15:31 | ||||||||||||
| Last Modified: | 16 Dec 2011 15:32 |
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