Numerical analysis of magnetic field effects on hydro-thermal behavior of a magnetic nanofluid in a double pipe heat exchanger
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- 作者：Ali Shakibaa ; Shakiba7858@yahoo.com" class="auth_mail" title="E-mail the corresponding author ; Khodadad Vahedib ; Khvahedi@ihu.ac.ir" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ferrohydrodynamics ; Ferrofluid ; Double pipe heat exchanger ; Magnetic field
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2016
- 出版时间：15 March 2016
- 年：2016
- 卷：402
- 期：Complete
- 页码：131-142
- 全文大小：3466 K
文摘
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Effect of applying non-uniform transverse magnetic field on a ferrofluid for enhancing the cooling process in a double pipe heat exchanger is investigated.
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Heat exchanger is exposed to a non-uniform transverse magnetic field with different intensities.
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The magnetic field is generated by an electric current going through a wire located parallel to inner tube and between two pipes.
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Applying this field produces kelvin force to change axial velocity profile and creating a pair of vortices increasing Nusselt number, friction factor and pressure drop.