Two-dimensional investigation of forced bubble oscillation under microgravity

作     者：HONG Ruoyu 1 and Masahiro KAWAJI 2(1. Department of Chemistry and Chemical Engineering, Soochow University, Suzhou 215006, China 2. Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto ON M5S 3E5, Canada) 

作者机构：Department of Chemistry and Chemical Engineering Soochow University Suzhou 215006 China Department of Chemical Engineering and Applied Chemistry University of Toronto Toronto ON M5S 3E5 Canada 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2003年第12期

页      面：9-14页

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Navier Stokes (N S) equations volume of fluid (VOF) microgravity bubble oscillation. 

摘      要：Recent referential studies of fluid interfaces subjected to small vibration under microgravity conditions are reviewed. An experimental investigation was carried out aboard the American Space Shuttle Discovery . Two dimensional (2 D) modeling and simulation were conducted to further understand the experimental results. The oscillation of a bubble in fluid under surface tension is governed by the incompressible Navier Stokes equations. The SIMPLEC algorithm was used to solve the partial differential equations on an Eulerian mesh in a 2 D coordinate. Free surfaces were represented with the volume of fluid (VOF) obtained by solving a kinematic equation. Surface tension was modeled via a continuous surface force (CSF) algorithm that ensures robustness and accuracy. A new surface reconstruction scheme, alternative phase integration (API) scheme, was adopted to solve the kinematic equation, and was compared with referential schemes. Numerical computations were conducted to simulate the transient behavior of an oscillating gas bubble in mineral oil under different conditions. The bubble positions and shapes under different external vibrations were obtained numerically. The computed bubble oscillation amplitudes were compared with experimental data.