The inhomogeneous morphology of magnetic fluid may appear in the presence of an external magnetic field, which shows the structure controllability of magnetic fluid and will lead to anisotropic thermal transport inside the magnetic fluid. Based on the microstructure of magnetic fluid and considering the effect of nanolayer, a model for the thermal conductivity of the magnetic fluid has been developed. The anisotropic thermal transport inside the magnetic fluid is investigated by the present method. The results show that in the presence of an external magnetic field the particles form chainlike clusters along the magnetic field direction, which leads to an increment in the thermal conductivity along the field direction and little change in the thermal conductivity perpendicular to the magnetic field direction. The thermal conductivity of magnetic fluid presents an anisotropic feature. With the increase of the magnetic field strength the chainlike clusters in the magnetic fluid becomes more obvious and the anisotropic feature of heat conduction in the fluids becomes more evident. Comparisons show that the results predicted by the present method are well coincident with the experimental data.
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ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer
December 18–21, 2009
Shanghai, China
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4389-5
PROCEEDINGS PAPER
Anisotropic Thermal Transport in Magnetic Fluids
Xiaopeng Fang,
Xiaopeng Fang
Nanjing University of Science & Technology, Nanjing, China
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Yimin Xuan,
Yimin Xuan
Nanjing University of Science & Technology, Nanjing, China
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Qiang Li
Qiang Li
Nanjing University of Science & Technology, Nanjing, China
Search for other works by this author on:
Xiaopeng Fang
Nanjing University of Science & Technology, Nanjing, China
Yimin Xuan
Nanjing University of Science & Technology, Nanjing, China
Qiang Li
Nanjing University of Science & Technology, Nanjing, China
Paper No:
MNHMT2009-18254, pp. 483-489; 7 pages
Published Online:
October 26, 2010
Citation
Fang, X, Xuan, Y, & Li, Q. "Anisotropic Thermal Transport in Magnetic Fluids." Proceedings of the ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1. Shanghai, China. December 18–21, 2009. pp. 483-489. ASME. https://doi.org/10.1115/MNHMT2009-18254
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