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Double Diffusive Magnetohydrodynamic Free Convective Flow of Nanofluids Past an Inclined Porous Plate Employing Tiwari and Das Model: FEM

机译:双扩散磁流体动力自由纳米流体的对流过去的倾向多孔板采用女子和Das模型:有限元法

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摘要

This article presents a finite element study of double diffusive magnetohydrodynamic free convective flow of nanofluids past an inclined porous plate with oscillatory velocity considering buoyancy, heat absorption, first order chemical reaction and radiation effects. The problem is formulated for two water based nanofluids with spherical shaped metal nano particles as copper and alumina in a rotating frame of reference by employing Tiwari and Das model. The Rossel and approximation is adopted for thermal radiation effect whereas the Maxwell-Garnetts and Brinkman models are used for the effective thermal conductivity and dynamic viscosity of the nanofluids respectively. The dimensionless, coupled governing partial differential equations are solved numerically by using finite element method. The numerical values for governing physical parameters on velocity, temperature and concentration distributions are presented quantitatively and exemplified graphically. To ascertain the correctness of the numerical results the skin friction, Nusselt number values with in the flow regime are compared with the previously reported results in some limiting cases of the present investigation, and are found to be in good agreement. This investigation is relevant to electromagnetic nanomaterial manufacturing processes and also high temperature rotating chemical engineering systems exploiting magnetized nanofluids.
机译:本文提出了一种有限元的研究双扩散磁流体动力自由纳米流体的对流过去的倾向多孔板的振动速度首先考虑浮力,吸热,化学反应和辐射效应。问题是制定两个水性纳米流体与金属纳米球形形状粒子在一个旋转的铜和铝参照系采用女子和Das模型。而对热辐射的影响Maxwell-Garnetts和边缘主义者模型用于有效导热系数和动态的纳米流体的粘度。无量纲,耦合管理部分微分方程数值求解的使用有限元方法。管理物理参数对速度,温度和浓度分布提出了定量和例证图形化。数值结果皮肤摩擦,努塞尔特与流态的数量值与之前报道的结果一些极限情况的调查,并发现良好的协议。调查相关电磁纳米材料制造过程和也高温旋转化学工程系统利用磁化纳米流体。

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