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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, 112. Springer Verlag, Berlin Heidelberg. pp. 399-406. doi: 10.1007/978-3-642-14243-7_49. ISBN 978-3-642-14243-0.
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Official URL: http://link.springer.com/chapter/10.1007/978-3-642-14243-7_49
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.
| Item URL in elib: | https://elib.dlr.de/67227/ | ||||||||||||||||||||||||||||
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| Document Type: | Contribution to a Collection | ||||||||||||||||||||||||||||
| Title: | Pattern Recognition in High Speed Schlieren Visualization at the High Enthalpy Shock Tunnel Göttingen (HEG) | ||||||||||||||||||||||||||||
| Authors: |
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| Date: | 2010 | ||||||||||||||||||||||||||||
| Journal or Publication Title: | New Results in Numerical and Experimental Fluid Mechanics VII | ||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||||||
| Gold Open Access: | Yes | ||||||||||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||||||
| Volume: | 112 | ||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-642-14243-7_49 | ||||||||||||||||||||||||||||
| Page Range: | pp. 399-406 | ||||||||||||||||||||||||||||
| Editors: |
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| 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: | Brennecke-Hosseinzadeh, Dagmar | ||||||||||||||||||||||||||||
| Deposited On: | 21 Dec 2010 15:04 | ||||||||||||||||||||||||||||
| Last Modified: | 20 Mar 2015 16:26 |
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