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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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Abstract

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)
Additional Information: LIDO-Berichtsjahr=1990,
Title:Design of an Axisymmetric, Contoured Nozzle for the HEG.
Authors:
AuthorsInstitution or Email of Authors
Hannemann, K.UNSPECIFIED
Date:1990
Number of Pages:71
Status:Published
Keywords:Nozzle Design, Wind Tunnel, HEG
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:other
HGF - Program Themes:other
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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