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A new empirical correlating equation for calculating effective viscosity of nanofluids

机译：一种计算纳米流体有效粘度的新经验相关方程

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摘要

In this paper, an empirical correlation for the nanofluid viscosity is proposed. The new equation for the nanofluid effective dynamic viscosity, normalized by the dynamic viscosity of the base liquid, is derived from a wide selection of experimental data available in the literature. This correlation presented the viscosity of the nanofluid as a function of the base fluid viscosity, nanoparticle volume fraction, nanoparticle diameter, nanoparticle temperature, and mass density of the base fluid. The new correlation was evaluated against 898 experimental data for the viscosities of nanofluid collected from the literature. The experimental data included different working nanofluids, such as alumina, Iron, and silica, where the diameter of nanopar-ticles was ranging between 10 and 350 nm, suspended in water, propylene glycol, and kerosene. The predicted results were then compared with many other published experimental results for different nanofluids and very good concordance between these results was observed. In general, this correlation has higher accuracy and precision.
机译：本文提出了纳米流体粘度的经验相关性。通过基础液体的动态粘度标准化的纳米流体有效动态粘度的新方程来自文献中可用的各种实验数据。这种相关性呈纳米流体的粘度，作为基础流体粘度，纳米颗粒体积分数，纳米颗粒直径，纳米颗粒温度和基础流体质量密度的函数。评估新相关性针对来自文献中纳米流体的粘度的898个实验数据评估。实验数据包括不同的工作纳米流体，例如氧化铝，铁和二氧化硅，其中纳米麦片的直径在10至350nm之间，悬浮在水，丙二醇和煤油中。然后将预测结果与许多其他公开的不同纳米流体的实验结果进行比较，并且观察到这些结果之间的非常好的一致性。通常，这种相关性具有更高的准确性和精度。

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  • 来源
    《Heat transfer》 |2019年第5期|1547-1562|共16页
  • 作者

    Maher Dhahri; Hana Aouinet; Habib sammouda;

  • 作者单位

    Physics Department Laboratory of Energy and Materials (LabEM) (LR11ES34) High School of Sciences and Technology of Hammam Sousse Sousse University Hammam Sousse Tunisia Department of Horticultural Systems Engineering and Natural Environment High Institute of Agronomy of Chott Mariem Sousse University Sousse Tunisia;

    Civil Department National Engineering School of Tunis University of Tunis El Manar Tunis Tunisia;

    Physics Department Laboratory of Energy and Materials (LabEM) (LR11ES34) High School of Sciences and Technology of Hammam Sousse Sousse University Hammam Sousse Tunisia;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    heat pipes; nanofluid; newtonian fluids; viscosity;

    机译：热管;纳米流体;牛顿液体;粘度;

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