Recompression of Nonequilibrium Flow in the Wake of a Blunted Cone
Kastell, D. and Hannemann, K. and Eitelberg, G. (1997) Recompression of Nonequilibrium Flow in the Wake of a Blunted Cone. In: 20th International Symposium on Shock Waves, Editors: Sturtevant, B., Shepherd, J.E.; Hornung, H.G., World Scientific, 1996, Vol. 1, pp. 221-226. Copyright 1996 by World Scientific Publishing Co. Pte. Ltd., USA.
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The entry of a planetary probe, which is a 140 Grad total-included- angle blunted cone with a spherical nose, rounded edges, and a cylindrical afterbody is significantly influenced by nonequilibrium flow effects. Therefore its aerodynamic characteristics have been investigated in the continuum flow of a High Enthaly Shock Tunnelat the DLR in Goettingen (HEG). Calculations with a Thin-Layer Navier- Stokes code which is capable of simulating chemical and thermal nonequilibrium flows have been carried out and compared tomeasured heat transfer and pressure distributions. Depending on the operating condition of the tunnel, up to 63% of the stagnation heattransfer rate was reached on the front body corner junction and upto 13% was measured on the afterbody sting due to the reattachmentof the separated shear layer. The numerical prediction on the forebody compares well with the experimental data, whereas the maximum heat loads on the sting were underestimated by the calculations.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Recompression of Nonequilibrium Flow in the Wake of a Blunted Cone|
|Journal or Publication Title:||20th International Symposium on Shock Waves, Editors: Sturtevant, B., Shepherd, J.E.; Hornung, H.G., World Scientific, 1996|
|Page Range:||pp. 221-226|
|Publisher:||Copyright 1996 by World Scientific Publishing Co. Pte. Ltd., USA|
|Keywords:||HEG, nonequilibrium flow, hypersonic, experiment, numerical simulation, blunted cone, wake flow, shear layer|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||UNSPECIFIED|
|Location:||Köln-Porz , Braunschweig , Göttingen|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:09|
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