MHD free convective heat and mass transfer flow of dissipative Casson fluid with variable viscosity and thermal conductivity effects

被引:32
|
作者
Idowu, Amos S. [1 ]
Akolade, Mojeed T. [1 ]
Abubakar, Jos U. [1 ]
Falodun, Bidemi O. [1 ]
机构
[1] Univ Ilorin, Dept Math, PMB 1515, Ilorin, Nigeria
来源
关键词
Casson fluid; Cattaneo-Christov; MHD; stretching sheet; spectral collocation method; EYRING-POWELL NANOFLUID; COLLOCATION METHOD; STRETCHING SHEET; MAGNETIC-FIELD; RADIATIVE HEAT; VISCOUS DISSIPATION; HYDROMAGNETIC FLOW; BLOOD-FLOW; MODEL; SURFACE;
D O I
10.1080/16583655.2020.1781431
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In this paper, the Cattaneo-Christov heat flux relocation paradox on Casson fluid with MHD and dissipative effects was considered. The buoyancy and heat generation effects were believed to be responsible for the natural convection, while variable properties were perceived as temperature-dependent linear function. Under the given assumptions, the governing system of equations was formulated and transformed. Hence, the Chebyshev collocation spectral approach was therefore employed to achieve an approximate solution. However, the behaviour of temperature-dependent variability establishes the relationship between the boundary layer flow of plastic dynamic viscosity and the Casson fluid. Furthermore, it was observed that a corresponding increase in the stretching index (n) increases the skin friction and decreases the energy and mass gradient accordingly. The relocation phenomenon contributes to a decrease in the thermal process, while the temperature gradient attained maximum within (0.4 - 0.6) variation of the Casson parameter.
引用
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页码:851 / 862
页数:12
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