K-1705 分子動力学法を用いた溶存気体の壁面気泡核生成(J08-2 熱流体現象の原子・分子論的アプローチ(2))(J08 熱流体現象の原子・分子論的アプローチ)

概要

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Although physical and chemical properties of a solid wall have been considered to have no effect on flow characteristics, Watanabe et. al. reported laminar drag reduction for Newtonian fluids in a highly water-repellent duct[l]. One of the causes of this drug reduction can be guessed as the existence of micro bubbles or very thin gas film over the wall surface. In this study, MD simulations of bubble nucleation and its growth on a hydrophobic solid wall from a liquid containing dissolved gas was performed by changing the intermolecular potentials between a solvent molecule and a solid wall molecule. The result shows that a hydrophobic solid wall has a strong tendency to give rise to bubble nucleation and its growth.
社団法人日本機械学会の論文
2001-08-22