A Challenging Study for Development of Theory of Transport Phenomena in Mesoscale Space

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14202
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Osaka University
• Principal Investigator: Yasunori Okano 大阪大学, 基礎工学研究科, 教授 (90204007)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 移動現象 / 数値解析 / メゾスケール

Outline of Final Research Achievements

Effect of space scale on Marangoni convection was numerically investigated by using both of Molecular Dynamics (MD) and Computational Fluid Dynamics (CFD). Both the CFD and MD simulations show that four vortices were developed after deformation of the liquid film. Solutes were transferred along the liquid-gas interfaces by solutal Marangoni convection. The results of the CFD simulations qualitatively agree with that of the MD simulations. However, there are quantitative differences in terms of the maximum velocity in the liquid film and deformation rate and width of the liquid film. Numerical model by using S-CLSVOF method and considering Langevin equation was developed to expand CFD to nano-scale calculation.

Free Research Field

化学工学