VELOCITY OF DROPLET WITH SORPTION-CONTROLLED  SURFACTANT IN ELECTROLYTE SOLUTION

陈晋南; 彭炯

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VELOCITY OF DROPLET WITH SORPTION-CONTROLLED SURFACTANT IN ELECTROLYTE SOLUTION

更新时间：2025-12-16

- VELOCITY OF DROPLET WITH SORPTION-CONTROLLED SURFACTANT IN ELECTROLYTE SOLUTION
- CIESC Journal Issue 1, (2000)
- 作者机构：
  
  北京理工大学化工与材料学院!北京100081,北京理工大学化工与材料学院,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC： 647
- Online First：25 February 2000，
  
  Published：25 February 2000
- 稿件说明：
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陈晋南, 彭炯. VELOCITY OF DROPLET WITH SORPTION-CONTROLLED SURFACTANT IN ELECTROLYTE SOLUTION[J]. CIESC Journal, 2000, (1).
DOI：

陈晋南, 彭炯. VELOCITY OF DROPLET WITH SORPTION-CONTROLLED SURFACTANT IN ELECTROLYTE SOLUTION[J]. CIESC Journal, 2000, (1). DOI：

摘要

Abstract

In this paper

monolayer saturation and nonideal surfactant interactions are captured with a nonlinear adsorption framework.The migration of a droplet in surfactant solution with electrolyte is discussed.Most prior research studied the migration of a bubble or a droplet in surfactant solution without electrolyte.When the surfactants in solution with electrolyte are adsorbed at the surface of a bubble or a droplet

an electrical double layer will form near the surface of the bubble or the droplet

which will affect the subsequent adsorption of the surfactants.A group of dimensionless parameters(the interaction coefficient of the adsorbed surfactants K ∞

the Marangoni number Ma

the Biot number Bi and the viscosity ratio k )are discussed in detail.The surface concentration of the adsorbed surfactants

the surface velocity and the migration velocity of the droplet are obtained by a boundary collocation technique.The terminal velocity U 0 of the droplet increases as K ∞ increases.

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