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Engineering Transition Prediction for a Hypersonic Axisymmetric Boundary Layer.

Stilla, J. (1993) Engineering Transition Prediction for a Hypersonic Axisymmetric Boundary Layer. In: Proc. AIAA/DGLR Fifth International Aerospace Planes and Hypersonics Technology Conference, 30.11.-3.12.1993, München..

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Abstract

The hypersonic flow over a blunt, slender cone at M*&#618 and *&#610* is investigated from an engineering point of view. To do this, a steady, laminar mean flow is efficiently computed by means of an Euler/Boundary-Layer method called EUBL which includes second-order boundary-layer theory. Transition prediction is done using local, linear stability theory in conjunction with the e*-method. Mean flow and stability results are in good agreement with those of other theoretical studies. Compared to experimental stability data, however, considerable differences between spatial amplification rates remain. The difference in transition location is about 15%. Results of sensitivity studies show that the displacement effect, as well as the influence of mumerical dissipation on the Euler solution, lead to differences in transition location, Re*, of about 10%. Furthermore, the use of a linear viscosity law for low temperatures leads to noticeable.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996, pages=11,
Title:Engineering Transition Prediction for a Hypersonic Axisymmetric Boundary Layer.
Authors:
AuthorsInstitution or Email of Authors
Stilla, J.UNSPECIFIED
Date:1993
Journal or Publication Title:Proc. AIAA/DGLR Fifth International Aerospace Planes and Hypersonics Technology Conference, 30.11.-3.12.1993, München.
Series Name:AIAA 93-5114
Status:Published
Keywords:Engineering transition prediction, hypersonic axisymmetric boundary layers, blunt cone, Euler/boundary-layer mean flow .....
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:UNSPECIFIED
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:06

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