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Melting heat transfer with radiative effects and homogeneous–heterogeneous reaction in thermally stratified stagnation flow embedded in porous medium 被引量:4

多孔介质中热层滞流中辐射效应和均相–非均相反应的熔化传热(英文)
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摘要 The present article deals with thermally stratified stagnation-point flow saturated in porous medium on surface of variable thickness along with more convincing and reliable surface condition termed as melting heat transfer.Homogeneous–heterogeneous reaction and radiative effects have been further taken into account to reconnoiterproperties of heat transfer.Melting heat transfer and phenomenon of homogeneous–heterogeneous reaction have engrossed widespread utilization in purification of metals,welding process,electroslag melting,biochemical systems,catalysis and several industrial developments.Suitable transformations are utilized to attain a scheme of ordinary differential equations possessing exceedingly nonlinear nature.Homotopic process is employed to develop convergent solutions of the resulting problem.Discussion regarding velocity,thermal field and concentration distribution for several involved parameters is pivotal part.Graphical behaviors of skin friction coefficient and Nusselt number are also portrayed.Concentration of the reactants is found to depreciate as a result of strength of both heterogeneous and homogeneous reaction parameters.With existence of melting phenomenon,declining attitude of fluid temperature is observed for higher radiation parameter. 本文研究了不同厚度多孔介质中的饱和热层滞点流的熔化传热。进一步研究了均相–非均相反应和辐射效应对传热性能的影响。熔融传热和均相反应现象在金属纯化、焊接工艺、电渣熔炼、生化系统、催化和工业中得到了广泛应用。利用同伦过程给出了问题的收敛解。讨论了几个相关参数,速度、热场和浓度分布。本文还描述了摩擦系数和Nusselt数的图解。反应物的浓度由于非均相和均相反应参数强度的变化而降低。由于熔融现象的存在,在较高的辐射参数下,流体温度下降。
作者 M.JAVED M.FAROOQ S.AHMAD Aisha ANJUM M.JAVED;M.FAROOQ;S.AHMAD;Aisha ANJUM(Department of Mathematics, Riphah International University)
出处 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第11期2701-2711,共11页 中南大学学报(英文版)
关键词 melting heat transfer porous medium stagnation point variable sheet thickness homogeneous– heterogeneous reaction 熔化传热 多孔介质 停滞点 变厚度 均相–非均相反应
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