东南大学学报（自然科学版）2024，Vol.54Issue(2)：495-502,8.DOI:10.3969/j.issn.1001-0505.2024.02.028
沟槽表面液滴动力学的格子玻尔兹曼模拟
Lattice Boltzmann simulation of droplet dynamics on groove surfaces
摘要
Abstract
For the wetting behaviors and anisotropic wetting behaviors of droplets on micro-structured sur-faces,the effects of the groove surface size,the droplet size and the gravity field on the dynamic behaviors of droplets were simulated and studied by the lattice Boltzmann method.The results show that the vertical contact angle is greater than the parallel contact angle and inversely proportional to the rib width.It increases first and then decreases with the increase of the groove width.However,the parallel contact angle is independent of the groove surface size.The droplet radius,the droplet contact angle and the wall solid fraction are correlated with each other.The wall solid fraction,the droplet radius and the gravity coefficient are positively correlated with the droplet deformation ratio.The spreading motion of the droplet along the vertical groove direction has a large energy barrier and exhibits an anisotropic wetting behavior.The increase of the droplet radius and the gravity field can weaken the anisotropic wetting behaviors of the droplet.The change of the droplet state can be achieved by changing the wall solid fraction at the wall.关键词
格子玻尔兹曼方法/液滴/润湿态/各向异性Key words
lattice Boltzmann method/droplet/wetting state/anisotropy分类
能源科技引用本文复制引用
唐志文,许波,王鑫,陈振乾..沟槽表面液滴动力学的格子玻尔兹曼模拟[J].东南大学学报（自然科学版）,2024,54(2):495-502,8.基金项目
国家自然科学青年基金资助项目(52006031). （52006031）
