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Critical heat flux in a locally heated liquid film driven by gas flow in a minichannel

par Zaitsev, Dmitry;Rodionov, D.A.;Kabov, Oleg
Référence Technical physics letters, 35, 7, page (680-682)
Publication Publié, 2009

Article révisé par les pairs

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Résumé :

The rupture of a liquid film driven by friction with a gas flow in a horizontal minichannel and the heat-exchange crisis in this film locally heated by a 1 × 1 cm source in the channel wall has been experimentally studied. A heat flux of 250 W/cm2 is achieved, which is greater by an order of magnitude than the limiting heat flux for a vertically falling liquid film with the same Reynolds number (Rel = 21). These experiments confirmed good prospects for using gas-flow-driven liquid films in cooling systems of devices with intense local heat evolution. © Pleiades Publishing, Ltd 2009.