FEATURES OF TRANSPORT PROCESSES OF NANOFLUIDS

被引：0

作者：

Rudyak, Valery Ya ^{[1
,2
,3
]}

机构：

[1] Novosibirsk State Univ Architecture & Civil Engn, Novosibirsk, Russia

[2] Novosibirsk State Univ, Novosibirsk, Russia

[3] Siberian Fed Univ, Krasnoyarsk, Russia

来源：

INTERFACIAL PHENOMENA AND HEAT TRANSFER | 2021年 / 9卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

nanofluids; nanoparticles; carbon nanotubes; viscosity; thermal conductivity; experiment; molecular dynamics; WALLED CARBON NANOTUBES; THERMAL-CONDUCTIVITY ENHANCEMENT; MOLECULAR-DYNAMICS SIMULATION; HEAT-TRANSFER CHARACTERISTICS; GLYCOL-BASED NANOFLUIDS; AQUEOUS SUSPENSIONS; ETHYLENE-GLYCOL; VISCOSITY COEFFICIENT; RHEOLOGICAL BEHAVIOR; PARTICLE-SIZE;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The current state of the description of the transport processes in nanofluids is discussed. The nanofluids with spherical nanoparticles and single-walled carbon nanotubes are analyzed. It was shown that the viscosity and thermal conductivity of the nanofluids with ordinary spherical nanoparticles are not described by the classical theories. Both viscosity and thermal conductivity depend not only on particles concentration but also on their size and material. The viscosity increases with decreasing particle size, but for thermal conductivity, the opposite behavior is fixed. The rheology of the nanofluids with carbon nanotubes studied is non-Newtonian and is essentially depended on the surfactant used. The thermal conductivity of nanofluids with carbon nanotubes is significantly (at least several times) higher than the thermal conductivity of nanofluids with spherical particles. In all cases, the thermal conductivity of the nanofluids with carbon nanotubes presented is much greater than the corresponding values of the Maxwell theory.

引用

页码：29 / 50

页数：22

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