화학공학소재연구정보센터
International Journal of Multiphase Flow, Vol.77, 90-103, 2015
Numerical simulation of ligament-growth on a spinning wheel
Liquid ligaments can grow from perturbations in liquid film spread on a spinning wheel due to the centrifugal force acting on the film. Typically, the growth is strongly influenced by the surface tension on the evolving liquid-air interface. This phenomenon, frequently exploited in industry for the production of fibers, was investigated numerically and the Volume-of-Fluid (VOF) methodology was used to model the interface. The freely available Gerris code with adaptive mesh refinement (AMR) was used to achieve the fine resolution of the computational grid required at the evolving liquid-air interface. The results were compared with the experimental data captured by a high-speed camera. The influence of the process operating variables on the ligament growth is also presented. (C) 2015 Elsevier Ltd. All rights reserved.