Migration of droplets under reduced gravity
Abstract
The migration of water droplets in butyl benzoate was investigated in a test cell. Both liquids are immiscible with one another and have the same density at about 32 C. At a temperature gradient of about 1 C/cm in stratified butyl benzoate in equilibrium; gravity is reduced to a hundredth of the interfacial force. Water droplets injected into the test cell are sorted out in the gravity field dependent on their diameters. The positions of the droplets in the test cell were photographically evaluated. The interface tension gradient was estimated at 10 to the -6th N/C m with the help of the formula of Young et al. (1959).
- Publication:
-
IN: Optical methods in dynamics of fluids and solids; Proceedings of the International Symposium
- Pub Date:
- 1985
- Bibcode:
- 1985omdf.proc..373D
- Keywords:
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- Drops (Liquids);
- Liquid-Liquid Interfaces;
- Reduced Gravity;
- Water;
- Drop Size;
- Drop Tests;
- Interfacial Tension;
- Solubility;
- Space Commercialization;
- Test Facilities;
- Fluid Mechanics and Heat Transfer