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Laser Diagnostics of Transverse Turbulent Jets
Sivadas, V., Instituto Superior Técnico, Lisboa, Portugal, and Pani, B. S., Indian Institute of Technology, Bombay, India, and Bütefisch, K.-A. (2001) Laser Diagnostics of Transverse Turbulent Jets. Journal of Flow Visualization and Image Processing, ISSN 1065-3090, 8 (4), pp. 369-382.
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Abstract
Experiments were conducted in a low-speed wind tunnel to understand the influence of nozzle geometry on the flow characteristics of incompressible air jets injected normal to a freestream. Jets issuing from circular and noncircular nozzles, with exit Reynolds numbers in the range 4500-9200 and velocity ratios from 3.8 to 7.7 are investigated. Measurements, in the zone of established flow, were carried out by laser light sheet flow visualization coupled with image processing, and laser Doppler anemometer techniques. Results show that, with increasing aspect ratio of the nozzles, the jet penetration increases ans carries stronger bound vortex pairs compared with the circular case. The deflected circular and square jets exhibit similar flow characteristics.
| Document Type: | Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Additional Information: | LIDO-Berichtsjahr=2003, | ||||||||
| Title: | Laser Diagnostics of Transverse Turbulent Jets | ||||||||
| Authors: |
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| Date: | 2001 | ||||||||
| Journal or Publication Title: | Journal of Flow Visualization and Image Processing, ISSN 1065-3090 | ||||||||
| Refereed publication: | Yes | ||||||||
| In ISI Web of Science: | Yes | ||||||||
| Volume: | 8 | ||||||||
| Page Range: | pp. 369-382 | ||||||||
| Status: | Published | ||||||||
| Keywords: | Laser Diagnostics, Transverse Turbulent Jets | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | L AR - Aircraft Research | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||
| DLR - Research theme (Project): | L - Flight Physics | ||||||||
| Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology | ||||||||
| Deposited By: | Ilka Micknaus | ||||||||
| Deposited On: | 31 Jan 2006 | ||||||||
| Last Modified: | 14 Jan 2010 19:21 |
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