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Title: Numerical simulation on steady flow around and through a porous sphere
Authors: Yu, Peng
Zeng, Yan
Lee, Thong See
Chen, Xiao Bing
Low, Hong Tong
Issue Date: 2012
Source: Yu, P., Zeng, Y., Lee, T. S., Chen, X. B., & Low, H. T. (2012). Numerical simulation on steady flow around and through a porous sphere. International Journal of Heat and Fluid Flow, 36, 142-152.
Series/Report no.: International journal of heat and fluid flow
Abstract: The flow around and through a porous sphere is investigated numerically. It is found that the recirculating wake existing downstream of the porous sphere is either completely detached from or penetrates it. Specially, in a certain range of Darcy number, the wake may initially increase in size with an increase in Reynolds number but then decrease in size and eventually disappear when the Reynolds number is sufficiently large. For a small Darcy number, the critical Reynolds number for the onset of recirculating wake may be significantly smaller than that of a solid sphere. The present study suggests that the surface curvature has an important effect on the initial position of the onset of recirculating wake.
ISSN: 0142-727X
DOI: 10.1016/j.ijheatfluidflow.2012.03.002
Rights: © 2012 Elsevier Inc.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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