计算物理 ›› 2012, Vol. 29 ›› Issue (1): 87-94.

• 论文 • 上一篇    下一篇

水平圆管内磁性潜热型功能流体对流换热特性的数值模拟

黄勇, 宣益民, 李强   

  1. 南京理工大学能源与动力工程学院, 江苏 南京 210094
  • 收稿日期:2011-01-20 修回日期:2011-06-01 出版日期:2012-01-25 发布日期:2012-01-25
  • 作者简介:黄勇(1982-)男,四川广安,博士生,主要从事功能流体方面的研究,E-mail:huangyong960@163.com
  • 基金资助:
    国家自然科学基金(50436020)资助项目

Simulation of Convective Heat Transfer in Magnetic Microencapsulated Phase Change Material Slurries in a Circular Tube

HUANG Yong, XUAN Yimin, LI Qiang   

  1. School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2011-01-20 Revised:2011-06-01 Online:2012-01-25 Published:2012-01-25

摘要: 建立磁场作用下水平圆管内磁性潜热型功能流体对流换热的数学物理模型,分析磁场强度、磁性相变微胶囊体积分数、流体质量流量等因素对流体对流换热的影响.磁场对磁性潜热型功能流体的对流换热具有显著的强化作用,磁场强度愈大强化作用愈明显,强化原因是磁性相变微胶囊受到磁力作用产生扰动.

关键词: 磁性潜热型功能流体, 磁场, 对流换热, 磁性相变微胶囊

Abstract: A mathematical model is established to describe convective heat transfer in magnetic microencapsulated phase change material slurry (MMPCMS) flows in a circular tube under an external magnetic field. Influences of magnetic field strength, volume fraction of magnetic phase change materials (MMPCM), mass flow rate, and heat flux on convective heat transfer are analyzed. It shows that convective heat transfer of slurries is obviously enhanced by external magnetic field. Since distributions of MMPCM volume fraction and slurry temperature are changed clue to magnetic force on MMPCM.

Key words: magnetic microencapsulated phase change material slurry, magnetic field, heat transfer, magnetic microencapsulated phase change material

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