Determination of thermal conductivity of interfacial layer in nanofluids by equilibrium molecular dynamics simulation

被引：54

作者：

Wang, Xin ^{[1
,2
]}

Jing, Dengwei ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, Xian 710049, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2019年 / 128卷

基金：

中国国家自然科学基金;

关键词：

Molecular dynamics simulation; Thermal conductivity; Interfacial layer; Nanofluids; Effective medium theory model; ENHANCEMENT; NANOLAYER;

D O I：

10.1016/j.ijheatmasstransfer.2018.08.073

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this article, equilibrium molecular dynamics are performed to investigate the thickness and thermal conductivity of interfacial layer around the nanoparticle in dilute nanofluids. A nanofluids system of a 1-nm-diameter copper spherical nanoparticle immersing into argon base liquids and then a flat interface formed by liquid argon on the solid copper surface are studied. Green-Kubo formula is developed to calculate thermal conductivity of interfacial layer. Besides, the effect of solid-liquid interaction is studied. The nano-scale thin interfacial layer with more ordered structure and higher thermal conductivity than that of the base fluids is observed. Then the simulation results are incorporated into the modified Maxwell equation to calculate the effective thermal conductivity of nanofluids. The results indicate that the contribution of interfacial layer to thermal conductivity enhancement of nanofluids can be neglected. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：199 / 207

页数：9

共 50 条

[31] Determination of nanolayer thickness and effective thermal conductivity of nanofluids
Abbasov, Hakim F.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2019, 40 (04) : 594 - 603
[32] Investigation of different nanoparticles properties on the thermal conductivity and viscosity of nanofluids by molecular dynamics simulation
Zhang, Ruihao
Qing, Shan
Zhang, Xiaohui
Luo, Zhumei
Liu, Yiqing
NANOTECHNOLOGY REVIEWS, 2023, 12 (01)
[33] Nanoparticles Shape Effect on Thermal Conductivity of Nanofluids: A Molecular Dynamics Study
Roni, Md. Rakibul Hasan
Morshed, A. K. M. M.
Tikadar, Amitav
Paul, Titan C.
Khan, Jamil A.
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2019, VOL 8, 2019,
[34] Thermal Analysis of Nanofluids Using Modeling and Molecular Dynamics Simulation
Namboori, Krishnan P. K.
Vasavi., C. S.
Gopal, Varun K.
Gopakumar, Deepa
Ramachandran, K. I.
Narayanan, Sabarish B.
INTERNATIONAL CONFERENCE ON ADVANCED NANOMATERIALS AND NANOTECHNOLOGY (ICANN 2009), 2010, 1276 : 407 - 412
[35] INFLUENCE OF INTERFACIAL PHENOMENA ON VISCOSITY AND THERMAL CONDUCTIVITY OF NANOFLUIDS
Morozova, Marina A.
Novopashin, Sergey A.
INTERFACIAL PHENOMENA AND HEAT TRANSFER, 2019, 7 (02) : 151 - 165
[36] The direct effect of interfacial nanolayers on thermal conductivity of nanofluids
R. Alipour
M. Ghoranneviss
M. Mirzaee
A. Jafari
Heat and Mass Transfer, 2014, 50 : 1727 - 1735
[37] Effective thermal conductivity of nanofluids considering interfacial nano-shells
Jiang, Haifeng
Li, Hui
Xu, Qianghui
Shi, Lin
MATERIALS CHEMISTRY AND PHYSICS, 2014, 148 (1-2) : 195 - 200
[38] Non-equilibrium molecular dynamics simulation of the thermal conductivity of crystals film
Shao, BD
Sun, ZW
AIRCRAFT ENGINEERING AND AEROSPACE TECHNOLOGY, 2006, 78 (02) : 138 - 141
[39] SIMULATION OF THERMAL CONDUCTIVITY OF NANOFLUIDS USING DISSIPATIVE PARTICLE DYNAMICS
Yamada, Toru
Asako, Yutaka
Faghri, Mohammad
Hong, Chungpyo
PROCEEDINGS OF THE ASME MICRO/NANOSCALE HEAT AND MASS TRANSFER INTERNATIONAL CONFERENCE, 2012, 2012, : 819 - 827
[40] SIMULATION OF THERMAL CONDUCTIVITY OF NANOFLUIDS USING DISSIPATIVE PARTICLE DYNAMICS
Yamada, Toru
Asako, Yutaka
Gregory, Otto J.
Faghri, Mohammad
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2012, 61 (05) : 323 - 337

← 1 2 3 4 5 →