Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.1134/S1990478922030139

Ключевые слова: evaporative cooling system, experiment, flow regime, liquid film, numerical simulation, vof method

Аннотация: Abstract: A three-dimensional mathematical model of the flow of a liquid film carried away by a gasflow in a flat horizontal minichannel under isothermal conditions is developed. Film flow regimesin an evaporative cooling system are simulated numerically. Dependences of the development ofdeformation on the motion control parameters such as the Reynolds numbers for liquid and gasare studied. The hydrodynamic flow regimes found in the experiment are confirmed by the resultsof numerical simulation. Five different modes are thus considered, namely, channel flooding,smooth film, two-dimensional waves, three-dimensional waves, and film rupture. An analysis ofthe simulation results shows that the model qualitatively correctly reproduces all the features offilm behavior in the studied modes. A satisfactory agreement between calculation and experimentis obtained in terms of the surface shape and film thickness as well as in terms of wavelengths andridge passing frequencies. It is shown that, on the whole, the calculation well reproduces the onsetof the development of instability in a liquid film. © 2022, Pleiades Publishing, Ltd.

Журнал: Journal of Applied and Industrial Mathematics

Выпуск журнала: Vol. 16, Is. 3

Номера страниц: 490-500

ISSN журнала: 19904789

Издатель: Pleiades Publishing

• Minakov A.V. (Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy ofSciences, Novosibirsk, 630090, Russian Federation)
• Lobasov A.S. (Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy ofSciences, Novosibirsk, 630090, Russian Federation)
• Shebelev A.V. (Siberian Federal University, Krasnoyarsk, 660041, Russian Federation, Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy ofSciences, Novosibirsk, 630090, Russian Federation)
• Zaitsev D.V. (Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy ofSciences, Novosibirsk, 630090, Russian Federation)
• Kabov O.A. (Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy ofSciences, Novosibirsk, 630090, Russian Federation)

• Scopus