Electrohydrodynamic effects on minimum film boiling
Abstract
Strong nonuniform electric fields are known to alter and usually to enhance convective and ebullient heat transfer in liquids. Nucleate and film boiling in the presence of an electric field have been studied, however, of these two ebullient processes, nucleate boiling has received far more attention. Thus, electrohydrodynamically coupled film boiling is the subject of the present study. A theoretical model is developed which accounts for the observed effect as a surface wave eletrohydrodynamic coupling mechanism at the vapor-liquid interface. Different models are presented for various electroquasistatic regimes including: perfectly conducting liquid; insulating liquid, dc applied electric field; and insulating liquid, ac applied electric field.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- January 1976
- Bibcode:
- 1976STIN...7710483J
- Keywords:
-
- Electrohydrodynamics;
- Heat Transfer;
- Liquid-Vapor Interfaces;
- Nucleate Boiling;
- Electric Fields;
- Film Boiling;
- Numerical Analysis;
- Wave Equations;
- Fluid Mechanics and Heat Transfer