A multi-phase ferrofluid flow model with equation of state for thermomagnetic pumping and heat transfer

被引：20

作者：

Aursand, Eskil ^{[1
]}

Gjennestad, Magnus Aa. ^{[1
]}

Lervag, Karl Yngve ^{[1
]}

Lund, Halvor ^{[1
]}

机构：

[1] SINTEF Energy Res, NO-7465 Trondheim, Norway

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 402卷

关键词：

Heat transfer; Ferrofluid; Thermomagnetic pump; Fluid mechanics; Equation of state; TRANSFER ENHANCEMENT; GENERAL CORRELATION; NANOFLUIDS; SUSPENSIONS; VISCOSITY;

D O I：

10.1016/j.jmmm.2015.11.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A one-dimensional multi-phase flow model for thermomagnetically pumped ferrofluid with heat transfer is proposed. The thermodynamic model is a combination of a simplified particle model and thermodynamic equations of state for the base fluid. The magnetization model is based on statistical mechanics, taking into account non-uniform particle size distributions. An implementation of the proposed model is validated against experiments from the literature, and found to give good predictions for the thermomagnetic pumping performance. However, the results reveal a very large sensitivity to uncertainties in heat transfer coefficient predictions. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：8 / 19

页数：12

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