计算物理 ›› 2012, Vol. 29 ›› Issue (2): 257-262.

• 论文 • 上一篇    下一篇

围绕变壁温水平圆柱热源接触熔化的理论分析

赵元松1, 梁卫华2, 陈文振3   

  1. 1. 海军装备研究院, 上海 200335;
    2. 海军政治指挥学院, 江苏 南京 210016;
    3. 海军工程大学船舶与动力学院, 湖北 武汉 430033
  • 收稿日期:2010-06-15 修回日期:2011-09-28 出版日期:2012-03-25 发布日期:2012-03-25
  • 作者简介:赵元松(1981-),男,博士,工程师,从事相变传热和动力系统标准化研究,E-mail:zhaoyuansong@sohu.com
  • 基金资助:
    国家自然科学基金(50376074)资助项目

Analytical Solution of Contact Melting Around a Horizontal Cylindrical Heat Source with Non-isothermal Wall

ZHAO Yuansong1, LIANG Weihua2, CHEN Wenzhen3   

  1. 1. Naval Academy of Armament, Shanghai 200335, China;
    2. Naval Command College, Nanjing 210016, China;
    3. College of Naval Architecture and Power, Naval University of Engineering, Wuhan 430033, China
  • Received:2010-06-15 Revised:2011-09-28 Online:2012-03-25 Published:2012-03-25

摘要: 研究围绕变壁温热源的接触熔化,建立表面温度随角度变化的水平圆柱热源接触熔化模型.对紧密接触熔化区的液体传热与运动状态进行分析,运用Nusselt液膜理论建立熔化控制方程,并采用理论求解,得到稳定熔化时的熔化速度解析解,所得结果包含了文献关于定壁温热源熔化的分析结果.通过分析不同温度分布下发生接触熔化的熔化速度、液膜厚度和压力分布情况,得到温度分布对熔化影响的规律.

关键词: 接触熔化, 变壁温, 圆柱, 相变, 传热

Abstract: Contact melting around a heat source with non-isothermal wall is investigated.A theoretical model for contact melting around a horizontal cylindrical heat source,whose wall temperature varied with angle,is established.Condition of heat transfer and motion of the liquid molten in contact region are studied.Control equations of melting are established with Nusslet's liquid film theory.And analytical solution of melting velocity is obtained theoretically.It includes result published in literature about melting around the heat source with constant temperature.Melting velocity,thickness and pressure distribution of molten layer under different melting conditions are studied.Effects of temperature distribution on melting are obtained.

Key words: contact melting, non.isothermal wall, horizontal cylinder, phase change, heat transfer

中图分类号: