Molecular dynamics simulation of effect of liquid layering around the nanoparticle on the enhanced thermal conductivity of nanofluids
Source abstract
Abstract
The effect of the molecular layering at liquid–solid interface on the thermal conductivity of the nanofluid is investigated by an equilibrium molecular dynamics simulation. By tracking the position of the nanoparticle and the liquid atoms around the spherical nanoparticle, it was found that a thin layer of liquid is formed at the interface between the nanoparticle and liquid; this thin layer will move with the Brownian motion of the nanoparticle. Through the analysis of the density distribution of the liquid near the nanoparticle, it is found that more argon atoms are attracted to form the layer around the nanoparticle when the diameter of the nanoparticle is larger, and therefore lead to the more significant enhancement of the thermal conductivity of the nanofluid.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanofluid Flow and Heat Transfer · Solar-Powered Water Purification Methods · Subcritical and Supercritical Water Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Allen MP, Tildesley DJ (1987) Computer simulations of liquids. Clarendon, Oxford
2. Assael MJ, Chen C-F, Metaxa I, Wakeham WA (2004) Thermal conductivity of suspensions of carbon nanotubes in water. Int J Thermophys 25:971–98510.1023/B:IJOT.0000038494.22494.04 ↗
3. Das SK, Putra N, Thiesen P, Roetzel W (2003) Temperature dependence of thermal conductivity enhancement for nanofluids. ASME J Heat Transf 125:567–57410.1115/1.1571080 ↗
4. Das SK, Choi SUS, Patel HE (2006) Heat transfer in nanofluids—a review. Heat Transf Eng 27:3–910.1080/01457630600904593 ↗
5. Eapen J, Li J, Yip S (2002) Mechanism of thermal transport in dilute nanocolloids. Phys Rev Lett 98:02830210.1103/PhysRevLett.98.028302 ↗
6. Evans W, Fish J, Keblinski P (2006) Role of Brownian motion hydrodynamics on nanofluid thermal conductivity. Appl Phys Lett 88:09311610.1063/1.2179118 ↗
7. Jang SP, Choi SUS (2006) Role of Brownian motion in the enhanced thermal conductivity of nanofluids. Appl Phys Lett 84:4316–431810.1063/1.1756684 ↗
8. Keblinksi P, Phillpot SR, Choi SUS, Eastman JA (2002) Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids). Int J Heat Mass Transf 45:855–86310.1016/S0017-9310(01)00175-2 ↗
9. Koo J, Kleinstreuer C (2004) A new thermal conductivity model for nanofluids. J Nanopart Res 6:577–58810.1007/s11051-004-3170-5 ↗
10. Leong KC, Yang C, Murshed SMS (2006) A model for the thermal conductivity of nanofluids—the effect of interfacial layer. J Nanopart Res 8:245–25410.1007/s11051-005-9018-9 ↗
11. Poulikakos D, Arcidiacono S, Maruyama S (2003) Molecular dynamics simulations in nanoscale heat transfer: a review. Microscale Thermophys Eng 7:181–20610.1080/10893950390219047 ↗
12. Prasher R, Bhattacharya P, Phelan PE (2005) Thermal conductivity of nanoscale colloidal solutions (nanofluids). Phys Rev Lett 94:02590110.1103/PhysRevLett.94.025901 ↗
13. Prasher R, Bhattacharya P, Phelan PE (2006) Brownian-motion-based convective-conductive model for the effective thermal conductivity of nanofluids. J Heat Transf 128:588–59510.1115/1.2188509 ↗
14. Rapaport DC (2001) The art of molecular dynamics simulation. Cambridge University Press, Cambridge
15. Sarkar S, Selvam RP (2007) Molecular dynamics simulation of effective thermal conductivity and study of enhanced thermal transport mechanism in nanofluids. J Appl Phys 102:07430210.1063/1.2785009 ↗
16. Tretiakov KV, Scandolo S (2004) Thermal conductivity of solid argon from molecular dynamics simulations. J Chem Phys 120:3765–376910.1063/1.1642611 ↗
17. Vogelsang R, Hoheisel C, Ciccotti G (1987) Thermal conductivity of the Lennard-Jones liquid by molecular dynamics calculations. J Chem Phys 86:6371–637510.1063/1.452424 ↗
18. Xie H, Wang J, Xi T, Liu Y, Ai F, Wu Q (2002) Thermal conductivity enhancement of suspensions containing alumina particles. J Appl Phys 91:4568–457210.1063/1.1454184 ↗
19. Xie H, Fujii M, Zhang X (2005) Effect of interfacial nanolayer on the effective thermal conductivity of nanoparticle-fluid mixture. Int J Heat Mass Transf 48:2926–293210.1016/j.ijheatmasstransfer.2004.10.040 ↗
20. Xue L, Keblinski P, Phillpot SR, Choi SUS, Eastman JA (2004) Effect of liquid layering at the liquid-solid interface on thermal transport. Int J Heat Mass Transf 47:4277–428410.1016/j.ijheatmasstransfer.2004.05.016 ↗
21. Yu W, Choi SUS (2003) The role of interfacial layers in the enhanced thermal conductivity of nanofluids: a renovated Maxwell model. J Nanopart Res 5:167–17110.1023/A:1024438603801 ↗
22. Yu CJ, Richter AG, Datta A, Durbin MK, Dutta P (2000) Molecular layering in a liquid on a substrate: an X-ray reflective study. Physica B 283:27–3110.1016/S0921-4526(99)01885-2 ↗