We simulate the quasi-static motion of a spherical particle through a stable, horizontal soap film. The soap film subtends a fixed contact angle, in the range $10-135^\circ$, where it meets the particle. The tension and pressure forces acting on the particle are calculated in two cases: when the film is held within a vertical cylinder, trapping a bubble but otherwise free to move vertically, and when the outer rim of the film is held in a fixed circular wire frame. Film deformation is greater in the second case, and the duration of the interaction therefore increases, increasing the contact time between particle and film. As the soap film returns towards its equilibrium shape following the passage of the particle a small bubble is trapped for contact angles below a threshold value of $90^\circ$. We show that this bubble is larger when the particle is larger and when the contact angle is smaller.
University of Reading（雷丁大学）；Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN) CNRS UMR8520, The University of Lille（里尔大学纳米电子、微电子和纳米技术研究所）；Aberystwyth University（阿伯里斯特威斯大学）；ISEL – Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa（里斯本高等理工学院）；Centro de Física Teórica e Computacional, Faculdade de Ciências da Universidade de Lisboa（里斯本大学科学学院理论计算物理中心）
Flowing menisci: coupled dynamics and liquid exchange with soap films
Université Côte d’Azur（蔚蓝海岸大学）；CNRS（法国国家科学研究中心）；INPHYNI（物理化学与界面研究所）；Université de Rennes（雷恩大学）；IPR (Institut de Physique de Rennes)（雷恩物理研究所）；Institut Universitaire de France (IUF)（法兰西学院）
