Heat transport modification by finitely extensible polymers in laminar boundary layer flow
Publication in refereed journal

香港中文大學研究人員

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摘要We study how heat transport is affected by finitely extensible polymers in a laminar boundary layer flow within the framework of the Prandtl-Blasius-Pohlhausen theory. The polymers are described by the finitely extensible nonlinear elastic-Peterlin model \vial a parameter b(2), which is the ratio of the maximum to the equilibrium value of the trace of the polymer conformation tensor. For very large b(2), heat transport is reduced. When b(2) is small, heat transport is enhanced. We investigate the transition from heat reduction to heat enhancement as a function of the polymer relaxation time and concentration, and show that the transition can be explained in terms of the functional shape of the space-dependent effective viscosity due to the polymers.
著者Benzi R, Ching ESC, Yu WCK, Wang YQ
期刊名稱Journal of Fluid Mechanics
出版年份2016
月份2
日期1
卷號788
出版社CAMBRIDGE UNIV PRESS
頁次337 - 357
國際標準期刊號0022-1120
電子國際標準期刊號1469-7645
語言英式英語
關鍵詞boundary layers; non-Newtonian flows; polymers
Web of Science 學科類別Mechanics; Physics; Physics, Fluids & Plasmas

上次更新時間 2020-13-10 於 02:19