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Gawehn, Thomas and Schodl, Richard (2007) A planar Mie scattering visualization technique for turbo machinery application. Measurement Science & Technology, 18 (12), pp. 3688-3696. Institute of Physics (IOP) Publishing. doi: 10.1088/0957-0233/18/12/003. ISSN 0957-0233.
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Official URL: http://www.iop.org/EJ/abstract/0957-0233/18/12/003
Abstract
A planar Mie scattering technique is described which allows for the systematical analysis of three-dimensional shock configurations without the need for velocity measurements. For that, small particles are added to the flow upstream of the shock and illuminated by a laser light sheet. The scattered light is captured by a CCD camera so that the position of the shock wave can be determined from the increase of the light intensity across the shock. To analyze the three-dimensional structure of a shock wave, the light sheet is moved perpendicular to the flow direction. The measurement technique is applied to both a supersonic wedge flow at Ma = 2.43 and a more complex shock wave configuration in a transonic cascade flow at Ma = 1.09. The gathered results are conclusive with Schlieren photographs, numerical simulations and surface pressure measurements. As the chosen setup allows the application to test sections with restricted optical access and a synchronization of the image capturing process with an external triggering signal, the three-dimensional shock configurations inside a transonic compressor rotor can also be visualized.
| Item URL in elib: | https://elib.dlr.de/52404/ | ||||||||||||
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| Document Type: | Article | ||||||||||||
| Title: | A planar Mie scattering visualization technique for turbo machinery application | ||||||||||||
| Authors: |
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| Date: | September 2007 | ||||||||||||
| Journal or Publication Title: | Measurement Science & Technology | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | Yes | ||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||
| Volume: | 18 | ||||||||||||
| DOI: | 10.1088/0957-0233/18/12/003 | ||||||||||||
| Page Range: | pp. 3688-3696 | ||||||||||||
| Publisher: | Institute of Physics (IOP) Publishing | ||||||||||||
| ISSN: | 0957-0233 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | shock wave, transonic flow, laser light sheet, wind tunnel, transonic compressor rotor, TXV, tracer based shock visualization, vapor screen technique | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | other | ||||||||||||
| HGF - Program Themes: | other | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L - no assignment | ||||||||||||
| DLR - Research theme (Project): | L - no assignment (old) | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology | ||||||||||||
| Deposited By: | Gawehn, Dr.-Ing. Thomas | ||||||||||||
| Deposited On: | 20 Dec 2007 | ||||||||||||
| Last Modified: | 23 May 2022 14:55 |
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- A planar Mie scattering visualization technique for turbo machinery application. (deposited 20 Dec 2007) [Currently Displayed]
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