Modeling of single film bubble and numerical study of the plateau structure in foam system
- 35 Downloads
The single-film bubble has a special geometry with a certain amount of gas shrouded by a thin layer of liquid film under the surface tension force both on the inside and outside surfaces of the bubble. Based on the mesh-less moving particle semi-implicit (MPS) method, a single-film double-gas-liquid-interface surface tension (SDST) model is established for the single-film bubble, which characteristically has totally two gas-liquid interfaces on both sides of the film. Within this framework, the conventional surface free energy surface tension model is improved by using a higher order potential energy equation between particles, and the modification results in higher accuracy and better symmetry properties. The complex interface movement in the oscillation process of the single-film bubble is numerically captured, as well as typical flow phenomena and deformation characteristics of the liquid film. In addition, the basic behaviors of the coalescence and connection process between two and even three single-film bubbles are studied, and the cases with bubbles of different sizes are also included. Furthermore, the classic plateau structure in the foam system is reproduced and numerically proved to be in the steady state for multi-bubble connections.
KeywordsSingle film bubble mesh-less moving particle semi-implicit (MPS) modeling plateau structure
Unable to display preview. Download preview PDF.
- Yang L. T., Lv J. Q., Sun Y. H. et al. Theoretical analysis of leakage during the bubble size [J]. Machine Design and Manufacturing Engineering of China, 2010, 39 (3): 78–79 (in Chinese).Google Scholar
- Zhang J. S., LV Q., Sun C. D. et al. High speed photography to motion of bubbles in water [J]. Photonics Journal, 2000, 29(10): 952–955(in Chinese).Google Scholar
- Gu H. Y., Guo L.J., Zhang X. M. et al. Single bubbles in gas-liquid two-phase flow in a horizontal tube shape characteristics [J]. Journal of Engineering Physics, 2006, 27(3): 433–436(in Chinese).Google Scholar
- Liu H., Xie M. Z., Li K. et al. Liquid metal bath numerical simulation of bubble-liquid two-phase turbulent flow into metal melt [J]. Chinese Journal of Computational Mechanics, 2007, 24(5): 669–673(in Chinese).Google Scholar
- Zhang S. J., Wu C. J. Numerical simulation of the interaction between two three dimensional deformable bubbles [J]. Chinese Journal of Hydrodynamics, 2008, 23(6): 681–686(in Chinese).Google Scholar
- Sun Z. G., Xi G., Xiang L. F. Simulation on rising bubble in water with meshfree method [J]. Journal of Engineering thermo-physics, 2007, 28(5): 771–774.Google Scholar
- Chen X., Sun Z. G., XI G. Improvement of the surface free energy model and numerical study on the infiltration of droplets [J]. Journal of Xiʼan Jiao Tong University, 2012, 46(7): 115–121(in Chinese).Google Scholar
- Kondo M., Koshizuka S., Suzuki K. et al. Surface tension model using inter-particle force in particle method [C]. ASME/JSME 2007 5th Joint Fluids Engineering Conference, San Diego, California, USA, 2007.Google Scholar