Effect of Interfacial Phenomena on Contact Line Heat Transfer. I.
Abstract
The heat transfer characteristics of the contact line region of an evaporating thin liquid film were studied experimentally and theoretically. The effects of composition and temperature gradients on surface shear were analyzed and the results were successfully compared with previously reported experimental trends. The use of a constant vapor pressure boundary condition allowed the relative effects of surface tension, composition and temperature on fluid flow to be mapped. A small heat transfer cell was designed, built and used on the scanning stage of a scanning microphotometer. The unique use of a microphotometer allows the microscopic detail to be measured. The preliminary results are being analyzed to evaluate the effect of capillarity on the evaporating meniscus in heat pipes. Additional development work on the heat transfer cell is required. Modeling studies are being extended. Keywords: Heat transfer; Interfacial phenomena; Surface shear; Evaporation; Heat pipes; Capillarity; Distillation; Thin liquid films.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 20, 1985
- Accession Number
- ADA166088
Entities
People
- Peter C . Wayner Jr.
Organizations
- Rensselaer Polytechnic Institute