
MeanField Kinetic Theory Based Study of Boundary Condition at VaporLiquid Interface [an abstract of entire text]MeanField Kinetic Theory Based Study of Boundary Condition at VaporLiquid Interface [an abstract of entire text] 気液界面における境界条件の平均場分子運動論に基づく研究 [全文の要約] 
"/今, 美沙紀/"今, 美沙紀
内容記述
The target of this thesis is heat and mass transfer in vaporliquid twophase systems composed of vapor and its condensed phase. Not only can this transport phenomena be widely observed in the natural world, but these are also applied to engineering. Hence, this transport phenomenon in the vaporliquid twophase system has been investigated from various theoretical frameworks, such as fluid dynamics, thermodynamics, and physical chemistry. In this thesis, we especially examine heat and mass transfer associated with a mass flux in the normal direction passing through the vaporliquid interface. The mass flux at the vaporliquid interface arises due to the molecular motions near the vaporliquid interface. In general, the influence of the microscopic phenomenon is confined to a sufficiently small region, and it does not affect the macroscopic phenomenon. On the other hand, it is known that the mass flux in the normal direction passing through the vaporinterface affects the vapor flow beyond the region in the vicinity of the interface. Naturally, such a mass flux should be predicted based on the microscopic theory. However, simplified models that ignore the microscopic phenomenon near the vaporliquid interface are widely used as the boundary condition in the macroscopic theory, namely, fluid dynamics. The objective of this thesis is to propose a proper boundary condition at the vaporliquid interface from the microscopic theories, namely, the meanfield kinetic theory and molecular gas dynamics. To achieve this objective, we investigate the boundary condition in molecular gas dynamics by utilizing the molecular simulation based on the meanfield kinetic theory. This investigation is the main content of this thesis. With the use of this boundary condition obtained by the molecular simulation, we can derive the boundary condition in fluid dynamics by the molecular gas dynamics analysis.
Hokkaido University（北海道大学）. 博士(工学)
本文を読む
https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/65718/1/Misaki_Kon_summary.pdf