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The effect of corru...
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Mirzaei, Maryam,1982Chalmers tekniska högskola,Chalmers University of Technology
(author)
The effect of corrugation on heat transfer and pressure drop in channel flow with different Prandtl numbers
- Article/chapterEnglish2013
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Elsevier BV,2013
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electronicrdacarrier
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LIBRIS-ID:oai:research.chalmers.se:78bb2916-1d1f-44b0-b2d6-0e5175144a5f
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https://doi.org/10.1016/j.ijheatmasstransfer.2013.06.047DOI
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https://research.chalmers.se/publication/182783URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Large Eddy Simulation and Direct Numerical Simulation are applied to study the turbulent flow field in a wavy channel at two Prandtl numbers, Pr = 0.71 and Pr = 3.5, and Reynolds number Re b = 10,000. The characteristics of the separated shear layer and the near wall recirculating zone are discussed in relation to the turbulent heat transfer. Special attention is paid to the behavior of the flow and thermal boundary layers and various turbulent characteristics and their effects on the distribution of the Nusselt number and friction coefficient in the separation and reattachment regions. The results indicate that the thickness of the thermal boundary layer rather than the turbulent fluctuations has a significant effect on the local variation of the averaged Nusselt number. The results are compared with Direct Numerical Simulation results of a plane channel at the same Reynolds number. © 2013 Elsevier Ltd. All rights reserved.
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Davidson, Lars,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)lada
(author)
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Sohankar Esfahani, Ahmad,1958Isfahan University of Technology
(author)
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Innings, F.Tetra Pak,Tetra Pak International
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Chalmers tekniska högskolaIsfahan University of Technology
(creator_code:org_t)
Related titles
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In:International Journal of Heat and Mass Transfer: Elsevier BV66, s. 164-1760017-9310
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