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Pattern Recognition in High Speed Schlieren Visualization at the High Enthalpy Shock Tunnel Göttingen (HEG)

Wolfram, Jeremy and Martinez Schramm, Jan (2010) Pattern Recognition in High Speed Schlieren Visualization at the High Enthalpy Shock Tunnel Göttingen (HEG). In: New Results in Numerical and Experimental Fluid Mechanics VII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Vol. 112. Springer Verlag, Berlin Heidelberg. pp. 399-406. ISBN 978-3-642-14243-0.

Full text not available from this repository.

Abstract

Time resolved digital high speed image recording of flow properties using schlieren and shadowgraph methods have become a standard tool in today’s investigations of hypersonic flows. Postprocessing is often necessary to enhance image quality, followed by quantitative image analysis to measure important flow features. Therefore, a software has been developed allowing flexible design of evaluation workflows and a high degree of automatization. Evaluation of shock stand-off distance and shock angle in experimental visualization series at HEG can be carried out. Even force prediction based on analysis of model displacement has been realized. The tool and design considerations based on typical problems of hypersonic flow visualization are discussed. Flow image analysis processes and results using a pattern recognition approach known as Hough transformation are presented.

Document Type:Contribution to a Collection
Title:Pattern Recognition in High Speed Schlieren Visualization at the High Enthalpy Shock Tunnel Göttingen (HEG)
Authors:
AuthorsInstitution or Email of Authors
Wolfram, JeremyUNSPECIFIED
Martinez Schramm, JanUNSPECIFIED
Date:2010
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics VII
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:No
Volume:Vol. 112
DOI:10.1007/978-3-642-14243-7_49
Page Range:pp. 399-406
Publisher:Springer Verlag, Berlin Heidelberg
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISBN:978-3-642-14243-0
Status:Published
Keywords:High Enthalpy Shock Tunnel, HEG, Schlieren, Shock Waves, Hough-Transform, Visual Data Manipulator, VDM, Computer Vision, Pattern Recognition, Distributed System
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Dagmar Brennecke-Hosseinzadeh
Deposited On:21 Dec 2010 15:04
Last Modified:21 Dec 2010 15:04

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