| Title: | Boundary element method for thermal flows using k-[epsilon] turbulence models |
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| Authors: | ID Ramšak, Matjaž (Author)
ID Škerget, Leopold (Author) |
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| Files: |  http://www.emeraldinsight.com/10.1108/09615530810853709
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | Purpose - This paper aims to develop a multidomain boundary element method (BEM) for modeling 2D complex turbulent thermal flow using low Reynolds two-equation turbulence models. Design/methodology/approach - The integral boundary domain equations are discretised using mixed boundary elements and a multidomain method also known as a subdomain technique. The resulting system matrix is an overdetermined, sparse block banded and solved using a fast iterative linear least squares solver. Findings - The simulation of a turbulent flow over a backward step is in excellent agreement with the finite volume method using the same turbulent model. A grid consisting of over 100,000 elements could be solved in the order of a few minutes using a 3.0 GhzP4 and 1 GB memory indicating good efficiency. Originality/value - The paper shows, for the first time, that the BEM is applicable to thermal flows using k-▫$epsilon$▫. |
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| Keywords: | thermal flow, heat exchange, turbulence, boundary element method, simulation |
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| Year of publishing: | 2008 |
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| PID: | 20.500.12556/DKUM-26181  |
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| UDC: | 536.5:519.61/64 |
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| ISSN on article: | 0961-5539 |
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| COBISS.SI-ID: | 12301846 |
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| NUK URN: | URN:SI:UM:DK:NXLAFPG7 |
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| Publication date in DKUM: | 31.05.2012 |
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| Views: | 2011 |
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| Downloads: | 57 |
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| Metadata: |    |
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| Categories: | Misc.
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