Cattaneo-Christov heat flux model on Blasius-Rayleigh-Stokes flow through a transitive magnetic field and Joule heating

被引:36
作者
Reddy, M. Gnaneswara [2 ]
Rani, M. V. V. N. L. Sudha [2 ]
Kumar, K. Ganesh [1 ]
Prasannakumar, B. C. [3 ]
Chamkha, Ali J. [4 ,5 ]
机构
[1] Dept Math, Acharya Nagarjuna Univ Campus, Ongole 523001, AP, India
[2] SJM Inst Technol, Dept Math, Chitredurga 577502, Karnataka, India
[3] Davanagere Univ, Dept Math, Davanagere, Karnataka, India
[4] Prince Mohammad Bin Fahd Univ, Mech Engn Dept, Prince Sultan Endowment Energy & Environm, Al Khobar 31952, Saudi Arabia
[5] Amer Univ Ras Al Khaimah, RAK Res & Innovat Ctr, Al Khaimah, U Arab Emirates
关键词
Cattaneo-Christov heat flux model; Blasius-Rayleigh-Stokes flow; Transitive magnetic field; UNSTEADY BOUNDARY-LAYERS; MHD 3D FLOW; POROUS-MEDIUM; NANO-FLUID; NANOFLUID; SIMULATION; FAMILY;
D O I
10.1016/j.physa.2019.123991
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This article addresses the Cattaneo-Christov heat flux, radiation and joule heating model as applied to a Blasius-Rayleigh-Stokes flow through a transitive magnetic field. The mathematical models are converted into a pair of self-similarity equations by applying appropriate transformations. The reduced similarity equivalences are then solved numerically by the Runge-Kutta-Fehlberg 45th-order method. To better perceive the problem, the flow and energy transfer characteristics are explored for distinct values of different factors. From this analysis we found that Higher values of Q increase the f (eta) field and its interrelated thickness of the boundary layer. The temperature of the fluid and its interrelated layer thickness enhances for boost up values of gamma . Also found that the streamline graphs are dominant for Q=2 when compared with Q=0.5. The presence of Q has more impact on the results when compared to the case where Q is absent. The local root RexCfx and Nu(x)Re(x)(-1/2) scale back for increasing values of omega. (C) 2019 Published by Elsevier B.V.
引用
收藏
页数:13
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