对一道范艾伦辐射带试题的深入分析及可视化仿真研究  

In-Depth Analysis and Visual Simulation Studies on a Van Allen Radiation Band Question

作　　者：潘刚 李阳辉 陈文娟 王姝舒 PAN Gang;LI Yanghui;CHEN Wenjuan;WANG Shushu(Xuancheng Campus,Hefei University of Technology,Anhui,Xuancheng 242000)

机构地区：[1]合肥工业大学宣城校区,安徽宣城242000

出　　处：《物理通报》2024年第2期125-128,133,共5页Physics Bulletin

基　　金：安徽省质量工程教学研究项目的研究成果,项目编号:2021xsxxkc230.

摘　　要：北京市丰台区2021届高三上学期物理期末试题有一道题目提到这样一个有趣的现象,来自外层空间的大量带电粒子进入地磁场影响范围后,粒子将绕地磁感线做螺旋运动,形成范艾伦辐射带.运用磁镜理论对带电粒子在地磁场中的运动进行理论分析,再运用COMSOL Multiphysics多物理场仿真软件对范艾伦辐射带现象进行可视化仿真,有效解决了学生对这道题目产生的种种疑惑.There is a question in the final physics exam of the first semester of the 2021 senior high school in Fengtai District,Beijing,which mentions such an interesting phenomenon,after a large number of charged particles from outer space enter the influence range of the geomagnetic field,the particles will spiral around the geomagnetic induction line to form the Van Allen radiation belt.This paper uses magnetic mirror theory to analyze the motion of charged particles in the geomagnetic field,and then uses COMSOL Multiphysics multiphysics simulation software to visualize and simulate the Van Allen radiation belt phenomenon,which effectively solves students'doubts about this topic.

关 键 词：范艾伦辐射带 地磁场 磁镜 可视化仿真 

分 类 号：G633.7[文化科学—教育学]