Behavior of Gas Curtain Formed at the Boundary between Container Wall and Liquid by Injection Gas

Abstract

An almost continuous gas film, which may be called gas curtain, was formed at the boundary between water solution and solid wall with poor wettability when nitrogen gas was injected into the water solution from the bottom end of the solid wall trough porous brick.
Length of the gas curtain was observed and briefly discussed in relation to gas injection rate, inclined angle of the solid wall, NaCI concentration, concentration of surface active agent (C₈H₁₇SO₃N₃), roughness of the solid wall and porosity of the porous brick.