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- Title
Specific features of explosive boiling of liquids on a film microheater.
- Authors
Varlamov, Yu.; Meshcheryakov, Yu.; Predtechenskii, M.; Lezhnin, S.; Ul’yankin, S.
- Abstract
Explosive boiling of liquids on film heaters under the action of pulsed heat fluxes q = 108–109 W/m 2 is considered. A technique of stroboscopic visualization of boiling stages with a time resolution of 100 nsec is used. Numerous scenarios of evolution of explosive boiling are demonstrated. Conditions of the thermal effect (magnitude of the heat flux, duration and repetition frequency of heat pulses) are found, which ensure single and repeated boiling, intermittent boiling, and boiling with formation of complicated multi-bubble structures. It is noted that homogeneous nucleation is a dominating mechanism of incipience of examined liquids for q > 108 W/m 2.
- Subjects
FILM boiling; EBULLITION; HEAT flux; HEAT pulses; HEAT transfer; NUCLEATION
- Publication
Journal of Applied Mechanics & Technical Physics, 2007, Vol 48, Issue 2, p213
- ISSN
0021-8944
- Publication type
Article
- DOI
10.1007/s10808-007-0028-5