Mölder, S. (1) (1) Ryerson Polytechnic University, Toronto, Canada, (1993) Blunt Body Flow - The Transonic Region. In: Proc. 19th Int. Symp. on Shock Waves. 19th Int. Symp. on Shock Waves, Marseille, July 1993.
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For supersonic flow of an ideal gas over planar and axisymmetric bodies we consider the transonic region bounded by the sonic line, the body surface, the downstream surface of the shock wave and the limiting characteristics. Using curved shock theory, we establish the conditions under which the shock surface is (type I), or is not (type II), a boundary of the transonic region. It is found that the existence of type I or type II flow is determined solely by the values of free stream Mach number, specific heat ratio of the gas and transverse-to-longitudinal curvature of the shock surface. When the curvature ratio is grater than 1, only type II flow is possible irrespective of the specific heat ratio. When the curvature ratio is less than -2/(gamma-1) then only type I is realized. When the curvature ratio is between 1 and -2/(gamma-1) the appearance of type I or type II is determined by the free stream Mach number which for planar flow. With proper choice of curvatures the results apply to general, three dimensional, shock waves as well.
|Document Type:||Conference or Workshop Item (Paper)|
|Additional Information:||LIDO-Berichtsjahr=1993, pages=7,|
|Title:||Blunt Body Flow - The Transonic Region|
|Journal or Publication Title:||Proc. 19th Int. Symp. on Shock Waves|
|Keywords:||Shock, shock curvature, characteristics|
|Event Title:||19th Int. Symp. on Shock Waves, Marseille, July 1993|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||other|
|HGF - Program Themes:||other|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||no assignment|
|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 10:07|
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