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首页> 外文会议>WSEAS International Conferences >Numerical Study of Laminar Mixed Convection of a Nanofluid in a Horizontal Tube using Two Phase Mixture Model with Variables Physical Properties
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Numerical Study of Laminar Mixed Convection of a Nanofluid in a Horizontal Tube using Two Phase Mixture Model with Variables Physical Properties

机译：用两相混合模型与变量物理性质使用两相混合管中纳米流体中纳米流体的层状混合对流的数值研究

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摘要

Laminar mixed convection of a nanofluid consists of water and Al2O3 in a horizontal tube has been studied numerically. Two-phase mixture model has been used to investigate hydrodynamic and thermal behaviors of the nanofluid with variables physical properties. Comparisons with previously published experimental and numerical works on mixed convection in horizontal tubes show good agreements between the results. For a given Richardson number the effects of nanoparticles volume fractions on the hydrodynamics and thermal parameters are presented and discussed. It is shown that at the fully developed region the nanoparticle concentration does not have significant effects on the hydrodynamics parameters. However, its effects on the thermal parameters are important.
机译：在数值上研究了纳米流体的层状流体的混合对流由水和水平管中的Al 2 O 3组成。两相混合物模型已被用于研究纳米流体的流体动力学和热行为，具有变量物理性质。与以前公布的实验和数值作品对水平管中混合对流的比较显示了结果之间的良好协议。对于给定的理查森编号，提出和讨论了纳米颗粒体积分数对流体动力学和热参数的影响。结果表明，在完全发育区域，纳米颗粒浓度对流体动力学参数没有显着影响。然而，它对热参数的影响很重要。

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