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首页> 外文期刊>Case Studies in Thermal Engineering >Nonlinear thermal radiation effect on magneto Casson nanofluid flow with Joule heating effect over an inclined porous stretching sheet
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Nonlinear thermal radiation effect on magneto Casson nanofluid flow with Joule heating effect over an inclined porous stretching sheet

机译：倾斜的多孔拉伸片材上的焦耳加热效应对磁卡森纳米流体流的非线性热辐射效应

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摘要

In this paper, mixed convection on MHD flow of casson nanofluid over a non-linearly permeable stretching sheet has been investigated and analyzed numerically. The effects of thermal radiation, chemical reaction, heat generation/absorption, viscous dissipation, suction and Joule heating are considered. The Brownian motion and thermophoresis phenomenon are used to model nanoparticles (Buongiorno's model). After converting PDEs governing the problem to ODEs, they have been solved by Runge-Kutta Fehlberg fourth-fifth order method. Obtained results of investigating the effects of different parameters changes on velocity, temperature, and concentration profiles are reported as diagrams. Fluid flow velocity reduction by increase in Hartman number (magnetic field parameter) is due to existence of Lorentz drag force against flow, flow velocity reduction due to increase in casson fluid parameter, increase in temperature profile due to increase in radiation parameter, and nanoparticle concentration profile reduction due to increase in chemical reaction parameter are some of valuable obtained results. Also, in final section of this paper effects of different parameters on skin friction coefficient, local Nusselt and Sherwood numbers are investigated that positive and ascending behavior for all three are reported.
机译：本文研究了非线性渗透性拉伸片上卡森纳米流体的MHD流动的混合对流，并进行了数值分析。考虑了热辐射，化学反应，生热/吸收，粘性耗散，吸力和焦耳热的影响。布朗运动和热泳现象用于建模纳米粒子（Buongiorno模型）。将控制问题的PDE转换为ODE之后，已通过Runge-Kutta Fehlberg四阶五阶方法对其进行了求解。调查不同参数变化对速度，温度和浓度分布的影响所获得的结果以图表形式报告。通过增加Hartman数（磁场参数）来降低流体流速的原因是：存在对流体的洛伦兹阻力;由于卡森流体参数的增加而导致流速的降低;由于辐射参数的增加而导致温度分布的提高;以及纳米粒子的浓度由于化学反应参数的增加而导致的轮廓降低是一些有价值的获得的结果。另外，在本文的最后部分，研究了不同参数对皮肤摩擦系数的影响，研究了局部Nusselt和Sherwood数，并报道了这三种物质的正向和上升行为。

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