Three dimensional mixed convection flow of hybrid casson nanofluid past a non-linear stretching surface: A modified Buongiorno's model aspects

被引:64
作者
Puneeth, V. [1 ]
Manjunatha, S. [2 ]
Madhukesh, J. K. [3 ]
Ramesh, G. K. [4 ]
机构
[1] CHRIST Deemed Univ, Dept Math, Bangalore 560029, Karnataka, India
[2] CHRIST Deemed Univ, Dept Sci & Humanities, Bangalore 560074, Karnataka, India
[3] Davangere Univ, Dept Math, Davangere 577002, Karnataka, India
[4] KL Soc JT Coll, Dept Math, Gadag 582101, Karnataka, India
关键词
Casson hybrid nanofluid; Mixed convection; Modified Boungiorno's model; Thermophoresis; Brownian motion; HEAT-TRANSFER COEFFICIENT; BOUNDARY-LAYER-FLOW; SHEET; THERMOPHORESIS; FLUID; CAVITY;
D O I
10.1016/j.chaos.2021.111428
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The purpose of this study is to determine the role of mixed convection, Brownian motion, and thermophoresis in the dynamics of Casson hybrid nanofluid in a bidirectional nonlinear stretching sheet. For the flow model, a combination of Tiwari and Das models, as well as Buongiornos model, is considered. The thermophysical characteristics of Gr, TiO2, and blood are employed. With the assistance of relevant similarity transformation, the describing flow equations of a Casson hybrid nanofluid model are reformed in the form of a system with a single independent variable. The solution for these equations is obtained using the RKF-45 approach. The velocity, temperature, and concentration fields are visually developed for both linear and non-linear stretching sheets, and the implications of the major parameters are presented in detail. It is clear from the current investigation that heat and mass transfer characteristics of fluid are better in the case of linear stretching than non-linear stretching. Furthermore, the mixed convection parameter is found to enhance the fluid flow velocity. However, the trend is quite opposite in the thermal and concentration fields. Meanwhile, the increase in the yield stress caused due to the rise in the Casson parameter decreases the flow velocity. (C) 2021 Elsevier Ltd. All rights reserved.
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页数:9
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