1536 境界層中に噴出した気流からの気泡分離機構(G05-3 複雑流体,G05 流体工学)

概要

論文の詳細を見る
An experimental and theoretical investigation is conducted to consider the mechanism of bubble separation from the air jet into water turbulent boundary layer. The bubble formation can be classified into three categories, i.e., (i) single bubble, (ii) coalescent bubble and (iii) continuous jet. The necessary condition from (i) to (ii) stated above is considered theoretically from a relation between the velocity of jet from the orifice and that caused by the contraction of the bubble when the separation occurs. When the bubble separates from the continuous jet (iii), the front part of the jet first swells and a spherical bubble separates. The diameter of the separated bubble is estimated from the equation of motion on the swelling. Both theoretical results approximate well the experimental ones.
一般社団法人日本機械学会の論文
2007-09-07