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Self-oscillatory regime of boiling of a highly subcooled liquid in a flow-passage annular duct

... film on the heater wall and long-lasting pressure oscillations of high amplitude in the duct (the self-oscillatory regime) have been observed in experiments. A mathematical model of the ethanol boiling up has been developed to take into account the evaporation of the overheated liquid near the heater wall and the vapor condensa-tion in the flow of a subcooled liquid. The proposed model describes both the decaying oscillations of the vapor layer and the development of the self-oscillatory regime,...

Теги: boiling , condensation , evaporation , pressure pulsations , self-oscillations , subcooled liquid , boiling liquids , ethanol , liquids , computational results , numerical computations , oscillatory regimes , pressure oscillation , pressure pulsation , subcooled
Раздел: ИСЭМ СО РАН
Simulating self-oscillations in a boiling flow of subcooled liquid in the channel

... oscillations with growing amplitude (the self-oscillatory mode), were observed. The mathematical model, which describes the non stationary process of boiling of ethanol in the channel, is presented. Model takes into account pulsations of a vapor film, evaporation of overheated liquid on a heater wall and vapor condensation owing to a flow of highly subcooled liquid. In numerical calculations the conditions of development of self-oscillations owing to evaporation of the liquid getting on a hot wall ...

Теги: ethanol , evaporation , nonstationary process , numerical calculation , oscillatory mode , pressure oscillation , self-oscillations , theoretical research , vapor condensation , vertical channels , liquids
Раздел: ИСЭМ СО РАН


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