| 球形纳米颗粒对纳米流体热传导率的加强作用 |
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| 引用本文： | 王晓华,周晓锋. 球形纳米颗粒对纳米流体热传导率的加强作用[J]. 太原师范学院学报(自然科学版), 2006, 5(3): 91-93,97 |
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| 作者姓名： | 王晓华 周晓锋 |
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| 作者单位： | 1. 盐城师范学院,物理系,江苏,盐城,224002
2. 盐城工学院,江苏,盐城,224000 |
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| 摘 要： | 文章考虑了梯度的界面纳米层以及近邻复合颗粒的相互作用，采用了复合镜象法来研究纳米流体的热传导率加强作用，数据结果表明当颗粒半径小于5nm时，梯度壳层对热传导率也有很重要的影响．此外，我们的理论对于CuO／H2O（EG）、Al2O3／H2O和Cu／EG纳米流体的热传导率的计算结果与实验符合得很好．
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| 关 键 词： | 纳米流体 有效热导率 复合镜象法 梯度壳层 |
| 文章编号： | 1672-2027（2006）03-0091-03 |
| 收稿时间： | 2006-06-18 |
| 修稿时间： | 2006-06-18 |
The Effects of Spherical Nanoparticles in Enhanced Thermal Conductivity of Nanofluids |
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| Wang Xiaohua,Zhou Xiaofeng. The Effects of Spherical Nanoparticles in Enhanced Thermal Conductivity of Nanofluids[J]. Journal of Taiyuan Normal University:Natural Science Edition, 2006, 5(3): 91-93,97 |
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| Authors: | Wang Xiaohua Zhou Xiaofeng |
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| Affiliation: | 1. Department of physics Yancheng Teachers College,Yancheng 224002; 2. Yancheng Institute of Technology ,Yancheng 224000 ,China |
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| Abstract: | We consider the graded interfacial nanolayers and the interaction of nearest-neighbouring inclusions,we adopt multiple image method to investigate the enhanced thermal conductivity of nanofluids.Numerical results show that the ordered graded interfacial nanolayers also have a major impact on the thermal conductivity of nanofluids when the particle radius is less than 5 nm.Moreover,our theoretical results on the effective thermal conductivity of CuO/water(EG),Al_2O_3 /water and Cu/EG nanofluids are in good agreement with experimental data. |
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| Keywords: | nanofluid effective thermal conductivity multiple image method graded interracial nanolayers |
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