三体模拟软件v4.0(三体+行星版)

上传者: pnmlunix2032 | 上传时间: 2021-05-28 19:35:47 | 文件大小: 377KB | 文件类型: RAR
1、打开已有的一组三体配置文件(.tbc)并运行(点击播放按钮)。 "File"菜单下有导入(Import)、导出(Export)功能,在不能上传附件时方便以纯文本方式交流自己搜索出来的三体配置! 2、手工设定初始条件的全部数值(点击魔术棍按钮)。分别指定三个物体的初始条件(X、Y、Z坐标,质量,初始速度的幅度、在XY平面上的角度0~360、在XZ平面上的角度0~360)。四个圆形选项(Radio Button)是参照系选择:默认的"Normalize to Centroid"是按三体系统质心作为参照系进行速度平衡,相当于观察者总是跟随三体的质心运动。另外三个选项分别是以第一、二、三个天体作为参照系,即总是把这个天体放在中心位置从不移动--注意这是非惯性参照系!(一般应选取行星主要围绕的那个恒星,方便观察行星轨道) 如果XZ平面上的初始速度角度都是0,则退化为二维的三体。 不过手工设定的条件通常都很难稳定运行。 3、设定搜索条件,让软件自动搜索。搜索分为两步: 3.1、搜索稳定的三体解(点击望远镜按钮) 第一部分是每个物体的约束条件:坐标最大值、最小质量、最大质量、最小速度幅度、最大速度幅度。 第二部分是是否要求三体在最初N步里超出一个边长为M的方框范围。这样看起来比较有趣,但搜索起来可能很慢。 第三部分是三体必须在N步里不超出一个边长为M的方框范围。否则它们很快发散就不好玩了。 然后那个复选框是:是否只进行二维搜索。 搜索结束后会出现一组初始条件值,点OK就开始运行了。 3.2、在三体解的基础上,搜索稳定的行星解(点击右下有小球的望远镜按钮) 手工设定或者自动搜索出来的解,如果喜欢的话,可以存盘,也可以导出为纯文本贴在论坛上与大家共享。压缩包里的.tbc也是偶自己用这个软件搜出来的。 四个播放按钮: 第一个播放形状的,是开始或者继续运行; 第二个暂停形状的,是暂停; 第三个短箭头,是减速运行; 第三个双箭头,是加速运行。 速度有很多档次,从减速6倍到加速运行100倍,直到加速100倍跳3125帧(相当于加倍312500倍,但每隔3125帧才显示一帧,所以看起来很不连续),每5倍为一个档次。

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评论信息

  • ovove :
    还不粗哦。基础算法OK
    2018-02-20
  • csk0411 :
    玩玩而已。。
    2016-06-21
  • zhj_15 :
    一般般吧,感觉还过得去
    2016-02-29
  • shycat21 :
    第一个给5分的软件!相当不错
    2015-12-29
  • fly962 :
    模拟的不错,但是显示的图形不够好。
    2015-08-17

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