受限水平狭缝中液桥的形貌和毛细力计算  

Morphology and Capillary Force Calculation of Liquid Bridge in Confined Horizontal Slit

作　　者：马姝靓[1] 程震宇 阳丽[1] MA Shujing;CHENG Zhenyu;YANG Li(College of Physics,Science and Technology,Guangxi Normal University,Guilin 541004,China)

机构地区：[1]广西师范大学物理与科学技术学院,广西桂林541004

出　　处：《徐州工程学院学报（自然科学版）》2022年第4期15-21,共7页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：广西省重点研发计划项目(桂科No.AB18221033)

摘　　要：以拉普拉斯方程为理论基础建立液桥三维外观轮廓的理论模型,计算水平狭缝中液桥的形貌特征参数和毛细力.将理论计算结果与实验结果、有限元软件仿真结果对比,得到了很好的一致性,证明了该模型的正确有效性.计算结果表明扎钉角随着间距的增加而增大,毛细力的大小与狭缝的高度宽度比和接触角密切相关.此外详细分析了(受限空间)狭缝中液桥形貌随着间距的变化与(不受限空间)典型液桥模型形貌变化规律不同的原因.Based on the Laplace’s equation, a theoretical model of the three-dimensional appearance profile of the liquid bridge is established, and the morphological characteristic parameters and capillary forces of the liquid bridge in the horizontal slit are calculated. The theoretical calculation results are compared with the experimental results and the finite element software simulation results, and a good agreement is obtained, which proves the correctness and validity of the model. The calculation results show that the stitching angle increases with the increase of the spacing, and the capillary force is closely related to the height-width ratio of the slit and the contact angle. In addition, the reasons for the different morphologies of the liquid bridge in the(confined space) slit with the change of the spacing are analyzed in detail.

关 键 词：受限狭缝 液桥形貌 毛细力 椭圆弧假定 

分 类 号：O411.3[理学—理论物理]