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Schmeling, Daniel and Westhoff, Andreas and Kühn, Matthias and Bosbach, Johannes and Wagner, Claus (2010) Flow Structure Formation of Turbulent Mixed Convection in a Closed Rectangular Cavity. In: New Results in Numerical and Experimental Fluid Mechanics VII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 112. Springer-Verlag, Berlin Heidelberg. pp. 571-578. doi: 10.1007/978-3-642-14243-7_70. ISBN 978-3-642-14242-0. ISSN 1612-2909.
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Official URL: http://link.springer.com/chapter/10.1007%2F978-3-642-14243-7_70#
Abstract
An experimental investigation of flow structure formation in turbulent mixed convection in a closed rectangular cavity with an aspect ratio of 1 : 1 : 5 and air as working fluid is presented. Mixed convection at Re = 1.1 · 10^4 and Ra = 3.0 · 10^8 is studied under well-defined conditions by combination of forced and thermal convection. The resulting flow structures strongly depend on the ratio of inertia and buoyancy forces. A 2D mean wind, which can be approximated by a solid body rotation, is found at pure forced convection. With increasing Archimedes number (Ar), realized by a temperature gradient between bottom and ceiling of the convection cell, this structure becomes instable. Leading to four convection rolls for Ar = 3.4, which are oriented in longitudinal direction of the cell, are observed.
| Item URL in elib: | https://elib.dlr.de/59018/ | |||||||||||||||||||||
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| Document Type: | Contribution to a Collection | |||||||||||||||||||||
| Title: | Flow Structure Formation of Turbulent Mixed Convection in a Closed Rectangular Cavity | |||||||||||||||||||||
| 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: | No | |||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||
| In SCOPUS: | No | |||||||||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||||||||
| Volume: | 112 | |||||||||||||||||||||
| DOI: | 10.1007/978-3-642-14243-7_70 | |||||||||||||||||||||
| Page Range: | pp. 571-578 | |||||||||||||||||||||
| Editors: |
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| Publisher: | Springer-Verlag, Berlin Heidelberg | |||||||||||||||||||||
| Series Name: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | |||||||||||||||||||||
| ISSN: | 1612-2909 | |||||||||||||||||||||
| ISBN: | 978-3-642-14242-0 | |||||||||||||||||||||
| Status: | Published | |||||||||||||||||||||
| Keywords: | Mixed Convection, PIV, Large Scale Structures | |||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||||||||
| HGF - Program Themes: | Aircraft Research (old) | |||||||||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||||||||
| DLR - Program: | L AR - Aircraft Research | |||||||||||||||||||||
| DLR - Research theme (Project): | L - Concepts & Integration (old), V - Fahrerassistenz (old) | |||||||||||||||||||||
| Location: | Göttingen | |||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Fluid Systems | |||||||||||||||||||||
| Deposited By: | Schmeling, Dr Daniel | |||||||||||||||||||||
| Deposited On: | 15 Dec 2009 08:50 | |||||||||||||||||||||
| Last Modified: | 20 Feb 2015 09:13 |
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