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Mathematics

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Calculus

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Vector Calculus and Theorems

Curl of Gravitational Fields

Description

Vector calculus helps describe gravitational fields that change across space. A useful example is the gravitational interaction between the Earth and a satellite. The Earth can be placed at the origin, and the satellite can be located at a point in three-dimensional space. The gravitational force on the satellite has compone...

Transcript

考虑位于原点的地球与处于空间真空中某一点(x, y, z)的卫星之间的相互作用。

地球对卫星施加引力,该引力由三个空间力分量 Fx、FyFz 定义。

一个关键方面是确定重力是否严格表现为一种中心力,或者它是否还会产生局部的旋转效应。为此,需要计算该力场的旋度。

例如, ith 组成部分 计算比较了变化量 z 相对于的力 y 轴对变化的 y 相对于的力 z 轴。由于这些成对的变化率数值相同,它们相互抵...