对扩散提出了两个假说:(a)克服表面张力将水束或水带从侧向碎裂成水滴,(b)克服粘滞剪力。从张力和剪力原理分别推导出下列两个公式: (s·p/σ)tan=~21/2=const., (s(ρp/μ)~(1/2))tan1/2α=const.,[1] 此外,还有一个惯用的经验公式: s·p1/2=const (2) 从剪力扩散作用和张力扩散作用有同等效应的临界水滴尺寸得出如下的判别式: A=μ/σ((p/ρ)tan1/2α(?)0.25.[3] 张力原理或剪力原理的适用性分别取决于“A”大于或小于0.25。本文证明了关于物理性质(表面张力、粘滞性)的作用理论.这个理论解决了有关粘滞性作用的文献中存在的矛盾。因为仅在采用剪力原理时,粘滞性起重要作用;而在采用张力原理时,粘滞性就没有那么大的作用。 Two hypotheses were made for diffusion: (a) The surface tension was used to divide the water or water band laterally into droplets, (b) to overcome the viscous shear forces. The following two equations are derived from the principles of tension and shear: (s · p / σ) tan = ~ 21/2 = const . [1] In addition, there is a common empirical formula: s · p1 / 2 = const (2) Judging from the critical droplet size that has the same effect as the shear diffusion effect, we get the following discriminant: A = μ / σ ((p / ρ) tan1 / 2α (?) 0.25. [3] The applicability of the tension principle or the shear principle depends on whether “A” is greater or lesser than 0.25.It is demonstrated here that the physical properties (surface tension, Viscosity theory), which solves the conflict in the literature on the role of viscosity because viscosity plays an important role only with the shear principle, whereas in the case of the tension principle the viscosity There is no such a big role.