Computational modelling of nanofluid flow over a curved stretching sheet using Koo?Kleinstreuer and Li (KKL) correlation and modified Fourier heat flux model

被引:114
作者
Gowda, R. J. Punith [1 ]
Al-Mubaddel, Fahad S. [2 ,3 ]
Kumar, R. Naveen [1 ]
Prasannakumara, B. C. [1 ]
Issakhov, Alibek [4 ]
Rahimi-Gorji, Mohammad [5 ]
Al-Turki, Yusuf A. [6 ,7 ]
机构
[1] Davangere Univ, Dept Studies & Res Math, Davangere, Karnataka, India
[2] King Saud Univ, Dept Chem Engn, Riyadh 11421, Saudi Arabia
[3] Energy Res & Innovat Ctr, ERIC, King Abdullah City Renewable & Atom Energy, Riyadh, Saudi Arabia
[4] Al Farabi Kazakh Natl Univ, Alma Ata, Kazakhstan
[5] Univ Ghent, Fac Med & Hlth Sci, B-9000 Ghent, Belgium
[6] King Abdulaziz Univ, Fac Engn, Ctr Res Excellence Renewable Energy & Power Syst, Jeddah 21589, Saudi Arabia
[7] King Abdulaziz Univ, Fac Engn, Dept Elect & Comp Engn, Jeddah 21589, Saudi Arabia
关键词
Curved stretching sheet; Cattaneo-Christov heat flux; Activation energy; Koo-Kleinstreuer-Li model; DARCY-FORCHHEIMER FLOW; BOUNDARY-LAYER; SURFACE;
D O I
10.1016/j.chaos.2021.110774
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The objective of the current paper is to study the two-dimensional, incompressible nanofluid flow over a curved stretching sheet coiled in a circle. Further, the impact of dispersion of nanoparticle CuO in base liquid water on the performance of flow, thermal conductivity and mass transfer using KKL model in the presence of Cattaneo-Christov heat flux and activation energy is deliberated. A curvilinear coordinate system is used to develop the mathematical model describing the flow phenomena in the form of partial differential equations. Further, by means of apt similarity transformations the governing boundary value problems are reduced to ordinary differential equations. Mathematical com putations are sim plified using Runge-Kutta-Fehlberg-45(RKF-45) process by adopting shooting method. Graphical illustrations of velocity, temperature, concentration gradients for various pertinent parameters are presented. The result reveals that, the heightening of porosity parameter heightens the thermal gradient but converse trend is depicted in velocity gradient. The enhancing values of Schmidt number and chemical reaction rate parameter declines concentration gradient whereas converse trend is depicted for upsurge in activation energy parameter. (c) 2021 Elsevier Ltd. All rights reserved.
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页数:8
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