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首页> 外文期刊>International Journal of Heat and Mass Transfer >Hydromagnetic nanofluid flow due to a stretching or shrinking sheet with viscous dissipation and chemical reaction effects
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Hydromagnetic nanofluid flow due to a stretching or shrinking sheet with viscous dissipation and chemical reaction effects

机译：由于具有粘性耗散和化学反应效应的拉伸或收缩片材而产生的流体磁纳米流

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摘要

We investigate the convective heat and mass transfer in nanofluid flow over a stretching sheet subject to hydromagnetic, viscous dissipation, chemical reaction and Soret effects. Two types of nanofluids, namely Cu-water and Ag-water were studied. A similarity transformation was used to obtain a system of nonlinear ordinary differential equations, which was then solved numerically using the Matlab "bvp4c" function. Numerical results were obtained for the skin friction coefficient, Nusselt number, Sherwood number as well as for the velocity, temperature and concentration profiles for selected values of the governing parameters, such as the nanoparticle volume fraction Φ, the magnetic parameter M. For a fixed Prandtl number Pr = 6.2 (corresponding to water) and different values of the magnetic field parameter and the nanoparticle volume fraction, we have shown that a good agreement exists between the present results and those in the literature. It was shown that the Cu-water nanofluid exhibits higher wall heat and mass transfer rates as compared to a Ag-water nanofluid. The influence of a magnetic field is to reduce both wall heat and mass transfer rates.
机译：我们研究了受流体电磁，粘性耗散，化学反应和Soret效应影响的拉伸片上纳米流体流动中的对流传热和传质。研究了两种类型的纳米流体，即铜水和银水。使用相似性变换获得非线性常微分方程组，然后使用Matlab“ bvp4c”函数对其进行数值求解。对于选定的控制参数值（例如纳米粒子体积分数Φ，磁参数M），获得了皮肤摩擦系数，努塞尔数，舍伍德数以及速度，温度和浓度曲线的数值结果。普朗特数Pr = 6.2（对应于水）以及磁场参数和纳米粒子体积分数的不同值，我们证明了目前的结果与文献报道之间存在良好的一致性。结果表明，与Ag-水纳米流体相比，Cu-水纳米流体表现出更高的壁热和传质速率。磁场的影响是减少壁的热量和传质速率。

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