An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion

doi:10.1007/s10973-017-6256-x

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	An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion
	Dong, Shuangling; Chen XD(陈晓东); Dong, SL (reprint author), Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China.
发表期刊	JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
	2017-08-01
卷号	129 期号:2 页码:1255-1263
ISSN	1388-6150
摘要	Based on the generalized distribution of the temperature field, an improved model for the thermal conductivity of nanofluid has been derived. The impact of particle size and Brownian motion is modeled through the effective volume fraction, based on particle radius. In the special case, the generalized relationship reduces to the classical Maxwell model. On the other hand, the effect of Brownian movement is equivalent to increasing the effective volume fraction of nanoparticles. The effective radius of the nanoparticle is proposed, where the switching time and the equivalent volume fraction depend on the Brownian velocity of the nanoparticles. Considering the above two effects, an effective model is obtained. Comparison of thermal conductivity for Al2O3-water nanofluid is made between the present model and several theoretical models. Theoretical predictions on CuO-water nanofluid, ZnO-TiO2 hybrid nanofluids and MWCNTs nanofluid are also verified against experimental data.
关键词	Nanofluid Enhanced Thermal Conductivity Maxwell Model Particle Size Brownian Motion
DOI	10.1007/s10973-017-6256-x
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000404994900062
关键词[WOS]	WATER NANOFLUIDS ; ETHYLENE-GLYCOL ; HEAT-TRANSFER ; NANOPARTICLES ; TEMPERATURE ; STABILITY ; MIXTURE
WOS研究方向	Thermodynamics ; Chemistry
WOS类目	Thermodynamics ; Chemistry, Analytical ; Chemistry, Physical
项目资助者	National Natural Science Foundation of China(51406098) ; Fundamental Research Funds for the Central Universities of China(ZY1614)
课题组名称	LNM微纳米流体力学
论文分区	二类
力学所作者排名	3
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60903
专题	非线性力学国家重点实验室
通讯作者	Dong, SL (reprint author), Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China.
推荐引用方式 GB/T 7714	Dong, Shuangling,Chen XD,Dong, SL . An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2017,129,2,:1255-1263.
APA	Dong, Shuangling,陈晓东,&Dong, SL .(2017).An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,129(2),1255-1263.
MLA	Dong, Shuangling,et al."An improved model for thermal conductivity of nanofluids with effects of particle size and Brownian motion".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 129.2(2017):1255-1263.

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