Effects of shear rate and temperature on viscosity of alumina polyalphaolefins nanofluids
文献类型：期刊论文
| 作者 | Zhou, SQ ; Ni, R ; Funfschilling, D |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2010 |
| 卷号 | 107期号:5页码:-54317 |
| ISSN号 | 0021-8979 |
| 通讯作者 | sqzhou@phy.cuhk.edu.hk |
| 中文摘要 | In this paper, the shear rate and temperature dependencies of viscosity of alumina nanofluids have been investigated experimentally. The alumina nanofluids are suspensions of alumina nanospheres or nanorods in polyalphaolefins (PAO) lubricant. The base fluid PAO has a Newtonian behavior. To the first approximation, nanofluids of volume fractions phi = 1% and 3% nanospheres as well as nanofluid of phi = 1% nanorods can be considered as Newtonian fluids because their viscosity shows very weak shear rate dependence. However, our measurement clearly indicates that these nanofluids demonstrate certain non-Newtonian feature due to the addition of nanoparticles. Moreover, the relative viscosity (the ratio of viscosity of nanofluid to that of PAO) of these nanofluids has been measured to be independent of temperature. Nanofluid of a higher volume fraction phi = 3% nanorods has an apparent non-Newtonian shear thinning viscosity and a strong temperature dependence of its relative viscosity. By reviewing the previous studies, the approximation that the viscosity is Newtonian and the relative viscosity is independent of temperature seem to hold for most nanofluids of low volume fraction phi and low aspect ratio nanoparticles. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3309478] |
| 学科主题 | Physics, Applied |
| 收录类别 | SCI |
| 原文出处 | AMER INST PHYSICS |
| WOS记录号 | WOS:000275657500116 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/6313]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Zhou, SQ,Ni, R,Funfschilling, D. Effects of shear rate and temperature on viscosity of alumina polyalphaolefins nanofluids[J]. JOURNAL OF APPLIED PHYSICS,2010,107(5):-54317. |
| APA | Zhou, SQ,Ni, R,&Funfschilling, D.(2010).Effects of shear rate and temperature on viscosity of alumina polyalphaolefins nanofluids.JOURNAL OF APPLIED PHYSICS,107(5),-54317. |
| MLA | Zhou, SQ,et al."Effects of shear rate and temperature on viscosity of alumina polyalphaolefins nanofluids".JOURNAL OF APPLIED PHYSICS 107.5(2010):-54317. |
入库方式： OAI收割
来源：南海海洋研究所
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