The deformation field consists of the velocitydivergence, it is symmetry matrix.
速度场可分为变形场和旋转场。
2
And the reason for that is, again, we have seen for a velocity field that divergence measures how much things are expanding or how much stuff is being created.
原因是…,我们看过一个向量场,散度意味着多少东西膨胀,多少东西被创造。
3
The result shown that the cold (warm) advection and convergence (divergence) in the velocity data were interrelated with the formation, maintenance, and disappearance of the snow-fall.