Tell a friend
Print
Study on the resolution requirements for DNS in turbulent Rayleigh-Bénard convection
Kaczorowski, Matthias and Wagner, Claus (2009) Study on the resolution requirements for DNS in turbulent Rayleigh-Bénard convection. 2nd International Conference on Turbulence and Interactions 2009, 2009-05-29 - 2009-06-02, Sainte-Luce, Martinique, France.
![[img]](http://elib.dlr.de/style/images/fileicons/application_pdf.png) | PDF - Registered users only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 606Kb |
Official URL: http://ti2009.onera.fr
Abstract
Two different recommendations by Gr"otzbach and Verzicco which are based on DNS that differ by about $5$ orders of magnitude lead to the assumption that the resolution requirements strongly depend on the turbulent sate of the flow. It is therefore envisaged to perform a number of direct simulations for Ra>10^5 and compare not only the Nusselt number but also the impact of the resolution on the statistics of the boundary layers as a function of Ra. For this purpose a set of numerical simulations in the range 3.5x10^5 <= Ra <= 2.31x10^8 is available, so that the grids can be precisely adapted to the desired resolution. Hence, not only global quantities, but also local properties of the flow can be compared, in order to have a sound basis for a comparison.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||
|---|---|---|---|---|---|---|---|
| Additional Information: | Accepted papers will be published in Notes of Numerical Fluid Mechanics and Multidisciplinary Design (NMFM) – Springer. | ||||||
| Title: | Study on the resolution requirements for DNS in turbulent Rayleigh-Bénard convection | ||||||
| Authors: |
| ||||||
| Date: | 2009 | ||||||
| Refereed publication: | No | ||||||
| In SCOPUS: | No | ||||||
| In ISI Web of Science: | No | ||||||
| Status: | Published | ||||||
| Keywords: | resolution, Rayleigh-Benard, boundary layers | ||||||
| Event Title: | 2nd International Conference on Turbulence and Interactions 2009 | ||||||
| Event Location: | Sainte-Luce, Martinique, France | ||||||
| Event Type: | international Conference | ||||||
| Event Dates: | 2009-05-29 - 2009-06-02 | ||||||
| Organizer: | Onera | ||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||
| HGF - Program: | Transport | ||||||
| HGF - Program Themes: | V BF - Bodengebundene Fahrzeuge | ||||||
| DLR - Research area: | Transport | ||||||
| DLR - Program: | V BF - Bodengebundene Fahrzeuge | ||||||
| DLR - Research theme (Project): | V - Next Generation Train (old) | ||||||
| Location: | Göttingen | ||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Fluid Systems | ||||||
| Deposited By: | Matthias Kaczorowski | ||||||
| Deposited On: | 26 Nov 2009 15:18 | ||||||
| Last Modified: | 25 Oct 2011 14:49 |
Repository Staff Only: item control page
