Design of an Axisymmetric, Contoured Nozzle for the HEG.
Hannemann, K. (1990) Design of an Axisymmetric, Contoured Nozzle for the HEG. Dissertation. DLR-Forschungsbericht. 90-04, 71 S.
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An axisymmetric, contoured nozzle is designed for the High Enthalpy Wind Tunnel Goettingen (HEG). In the conical part of the expansion the flow is calculated using a quasi one-dimensional approximation, taking into account finite rate chemical kinetics. Assuming a source flow and species freezing at the end of the conical section, the contoured part of the nozzle contour is subsequently determined using the method of characteristics for a perfect gas. The physical nozzle contour is f inally obtained by adding the boundary layer displacement thickness, calculated by using an empirical correlation, to the inviscid contour. In addition to the discussion of the performance at off-design conditions, different chemical models and rate constants are used in the quasi one-dimensional calculations in order to investigate the influence on the flow properties.
|Document Type:||Monograph (DLR-Forschungsbericht, Dissertation)|
|Title:||Design of an Axisymmetric, Contoured Nozzle for the HEG.|
|Number of Pages:||71|
|Keywords:||Nozzle Design, Wind Tunnel, HEG|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||no assignment|
|HGF - Program Themes:||no assignment|
|DLR - Research area:||Space|
|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 Theoretische Strömungsmechanik|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||03 Apr 2006|
|Last Modified:||27 Apr 2009 10:34|
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