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首页> 外文期刊>Journal of porous media >INFLUENCE OF EXTERNAL MAGNETIC SOURCE ON NANOFLUID TREATMENT IN A POROUS CAVITY
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INFLUENCE OF EXTERNAL MAGNETIC SOURCE ON NANOFLUID TREATMENT IN A POROUS CAVITY

机译:外部磁源对多孔腔内纳米流体处理的影响

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摘要

Magnetic nanofluid transportation under the effect of a nonuniform magnetic field in a porous cavity is analyzed. To obtain the nanofluid thermal conductivity, various shapes of nanoparticles are utilized. Control volume based finite element method (CVFEM) is employed to solve the vorticity-stream function governing equations. Graphs are depicted for various values of Darcy number (Da), radiation parameter (Rd), Fe3O4-water volume fraction (phi), and Rayleigh (Ra) and Hartmann (Ha) numbers. The results demonstrate that augmenting the Hartmann number results in the decrease in velocity of nanofluid and heat transfer rate. According to the results, using platelet-shaped nanoparticles results in the most significant heat transfer rate. The radiation parameter has a direct relationship with the Nusselt number.
机译:分析了多孔腔中的非均匀磁场效果下的磁性纳米流体输送。 为了获得纳米流体导热率,使用各种形状的纳米颗粒。 基于控制卷的有限元方法(CVFEM)用于解决涡流流函数控制方程。 图表被描绘的达西数(DA),辐射参数(RD),Fe3O4-水体积分数(PHI)和瑞利(RA)和Hartmann(HA)编号的各种值。 结果表明,增强哈特曼数导致纳米流体和传热速率的速度降低。 根据结果,使用血小板形纳米粒子导致最显着的传热速率。 辐射参数与NUSESERS号码有直接关系。

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