The influence of evaporation in shear-driven liquid film on heat removal from local heater

Elizaveta Gatapova, Oleg Kabov

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The present work focuses upon shear-driven liquid film evaporative cooling of high heat flux local heater. Thin evaporating liquid films may provide very high heat transfer rates and can be used for cooling of high power microelectronic systems. Thermocapillary convection in a liquid film falling down a locally heated substrate has recently been extensively studied. However, non-uniform heating effects remain only partially understood for shear-driven liquid films. The combined effects of evaporation, thermocapillarity and gas dynamics as well as formation of microscopic adsorbed film have not been studied. The effect of evaporation on heat and mass transfer for 2D joint flow of a liquid film and gas is theoretically and numerically investigated. The convective terms in the energy equations are taken into account. The calculations reveal that evaporation from film surface essential influences on heat removal from local heater. It is shown that the thermal boundary layer plays significant role for cooling local heater by evaporating thin liquid film. Measured by an infrared scanner temperature distribution at the film surface is compared with numerical data. Calculations satisfactorily describe the maximal surface temperature value.

Язык оригиналаАнглийский
Название основной публикацииProceedings of the 4th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2006
Страницы341-346
Число страниц6
Том2006 A
СостояниеОпубликовано - 2006
Событие4th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2006 - Limerick, Ирландия
Продолжительность: 19 июн 200621 июн 2006

Другое

Другое4th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2006
СтранаИрландия
ГородLimerick
Период19.6.0621.6.06

ASJC Scopus subject areas

  • Engineering(all)

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  • Цитировать

    Gatapova, E., & Kabov, O. (2006). The influence of evaporation in shear-driven liquid film on heat removal from local heater. В Proceedings of the 4th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2006 (Том 2006 A, стр. 341-346)