Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4756588
Title: Heat transfer in turbulent channel flow over protrusions
Authors: Chen, Y.
Chew, Y.T. 
Khoo, B.C. 
Keywords: DES
heat transfer
protrusion
turbulence
Issue Date: 2012
Source: Chen, Y., Chew, Y.T., Khoo, B.C. (2012). Heat transfer in turbulent channel flow over protrusions. AIP Conference Proceedings 1479 (1) : 2032-2036. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4756588
Abstract: In this study, heat transfer and flow structures over protrusions in turbulent channel flow were systematically investigated by DES numerically. It is found that larger height ratio induces higher friction factor and heat transfer. However the performance factor, on the other hand, increases first then reaches its asymptotic limit and even decreases with an increase of height ratio. The highest local Nusselt number was found at the upstream portion of protrusion. Additionally, the local Nusselt number distribution is symmetric for low protrusion while asymmetric for high protrusion because of asymmetric flow structure. © 2012 American Institute of Physics.
Source Title: AIP Conference Proceedings
URI: http://scholarbank.nus.edu.sg/handle/10635/73501
ISBN: 9780735410916
ISSN: 0094243X
DOI: 10.1063/1.4756588
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