大学物理 ›› 2020, Vol. 39 ›› Issue (8): 35-38.doi: 10.16854/j.cnki.1000-0712.190528

• 物理.自然.技术.社会 • 上一篇    下一篇

利用引力场的高斯定理推算地球内部压强

廖偲含,杨兴,鲁同所,胡婧   

  1. 1.西藏大学理学院物理系,西藏拉萨850000; 2.中国科学院上海应用物理研究所,上海嘉定201800
  • 收稿日期:2019-11-19 修回日期:2020-01-16 出版日期:2020-08-20 发布日期:2020-09-07
  • 通讯作者: 鲁同所,E-mail: lutongsuo@ 163.com
  • 作者简介:廖偲含( 1994—) ,女,重庆荣昌人,西藏大学理学院物理系19 级硕士研究生,主要从事理论物理研究工作.
  • 基金资助:
    国家自然科学基金( 11803024,11747128) ,西藏自治区自然科学基金项目( XZ2019ZRG-163) ,西藏大学教师学历提升“博士后计

    划”,西藏大学理学院2019 院级教改项目资助

Calculating the pressure in the earth’s interior by using Gauss theorem of gravitational field

LIAO Si-han1,YANG Xing1,LU Tong-suo1 ,2,HU Jing1   

  1. 1.Department of Physics,Tibet University,Lhasa,Tibet 850000,China; 2.Shanghai Institute of Applied Physics,Chinese Academy of Science,Shanghai 201800,China
  • Received:2019-11-19 Revised:2020-01-16 Online:2020-08-20 Published:2020-09-07

摘要: 利用静电场与万有引力场规律的相似性,建立引力场高斯定理的概念,来类比得到静态万有引力场的高斯定理表

达式,并将地球近似看成是质量分布具有球对称性的天体,根据布伦地球密度分布模型,运用Mathematica 拟合推算出地球内

部的压强,为地球的内部压强的研究提供了一种全新的思路和方法,对误差产生的来源也做了相关分析和探讨.

关键词: 高斯定理, 地球, 密度分布模型, 引力场强度, 压强

Abstract: In this paper,the concept of Gauss theorem of gravitation field is established based on the similarity

between electrostatic field and gravitation field. We have got the equation of Gauss theorem of gravitation field by analogy,

and of which the earth is approximately regarded as a celestial body with spherical symmetry of mass distribution.

According to the density distribution model of the earth,we fit and calculate the pressure in the earth’s interior

by means of the MATHEMATICA software. It provides a new thinking and way to study the pressure in the

Earth’s interior. Finally,we analyze and discussed the error sources in approximate calculations.

Key words: gauss theorem, earth, the density distribution model, gravitational field, the pressure