Determination of surface tension at the phase interface
Abstract
A method was developed for determining the surface tension coefficient at the interface of two immiscible liquids or of a gas and a liquid. Basic in this method is the measurement of the capillary rise of a droplet of one of the phases placed on the surface of the other phase. It is shown that the capillary rise is a function of the surface energy of the droplet and the viscous friction of the phases. A mathematical model of the dynamics of a liquid droplet is supported by experiments.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1982
- Bibcode:
- 1982STIN...8220466D
- Keywords:
-
- Fluid Dynamics;
- Interfacial Tension;
- Liquid-Liquid Interfaces;
- Liquid-Vapor Interfaces;
- Capillary Flow;
- Drops (Liquids);
- Mathematical Models;
- Solubility;
- Viscosity;
- Fluid Mechanics and Heat Transfer