大学物理 ›› 2018, Vol. 37 ›› Issue (3): 1-3.doi: 10.16854 /j.cnki.1000-0712.170485

• 教学研究 •    下一篇

计算辐射压强和辐射通量密度的几何方法

包景东   

  1. 北京师范大学物理学系,北京100875
  • 收稿日期:2017-08-16 修回日期:2017-11-30 出版日期:2018-03-20 发布日期:2018-03-20
  • 作者简介:包景东( 1962—) ,男,辽宁瓦房店人,北京师范大学物理学系教授,博士,主要从事力学、热力学与统
  • 基金资助:
    国家自然科学重点基金( 11735005) 资助

The geometric approach to calculate radiation pressure and radiation energy passing density

BAO Jing-dong   

  1. Department of Physics,Beijing Normal University,Beijing 100875,China
  • Received:2017-08-16 Revised:2017-11-30 Online:2018-03-20 Published:2018-03-20

摘要: 用几何方法证明了空腔热辐射热力学的两个重要等式,即辐射压强与辐射能密度的关系,腔壁上小孔的能通密度与辐射能密度的关系.研讨了目前常见教材有关这两个等式叙证中存在的问题.

关键词: 空腔, 辐射压强, 辐射通量, 几何方法

Abstract: By using the geometric method,two important formula in the radiation thermodynamics of the cavity are proved,namely,the relation between the radiation pressure and radiation energy density as well as the relation between the radiation energy passing density and the radiation energy density. The description and proving problems for the above two formula in the present textbooks are discussed.

Key words: cavity, radiation pressure, radiation energy passing density, geometric approach