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Schmeling, Daniel and Winter, Stefan and Bosbach, Johannes and Wagner, Claus (2016) On the Influence of the Aspect Ratio on Structure Formation in Turbulent Mixed Convection. 24th International Congress of Theoretical and Applied Mechanics (ICTAM), 2016-08-21 - 2016-08-26, Montréal, Canada.
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Official URL: https://myictam2016.zerista.com/event/member?item_id=4836352
Abstract
Mixed convection in a cuboidal convection cell is studied under variation of the aspect ratio Γxz = L/H in the range 0.2 ≤ Γxz ≤ 4 at Pr ≈ 0.7, Re ≈ 8.6∙103, Ra ≈ 2.4∙108 and Ar ≈ 4.5 by temperature measurements at certain locations. It is shown that the evaluation of dipole moments from the local temperatures leads to a quantity, which possibly indicates the formation of large-scale structures. Further it is found, that the number of convection rolls, which are formed in the sample, is less or equal in mixed convection as compared to pure thermal convection for all investigated Γxz.
| Item URL in elib: | https://elib.dlr.de/102919/ | ||||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
| Title: | On the Influence of the Aspect Ratio on Structure Formation in Turbulent Mixed Convection | ||||||||||||||||||||
| Authors: |
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| Date: | 2016 | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | mixed convection, aspect ratio, large-scale circulation | ||||||||||||||||||||
| Event Title: | 24th International Congress of Theoretical and Applied Mechanics (ICTAM) | ||||||||||||||||||||
| Event Location: | Montréal, Canada | ||||||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||||||
| Event Start Date: | 21 August 2016 | ||||||||||||||||||||
| Event End Date: | 26 August 2016 | ||||||||||||||||||||
| Organizer: | www.ictam2016.org | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||||||
| HGF - Program Themes: | Terrestrial Vehicles (old) | ||||||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||||||
| DLR - Program: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||
| DLR - Research theme (Project): | V - Next Generation Train III (old) | ||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology | ||||||||||||||||||||
| Deposited By: | Bachmann, Barbara | ||||||||||||||||||||
| Deposited On: | 04 Oct 2016 11:46 | ||||||||||||||||||||
| Last Modified: | 24 Apr 2024 20:08 |
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