Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.1063/5.0139711

Аннотация: <jats:p>We show that a subtle coupling between the thermal and solutal gradients driven by the thermodiffusion, cross-diffusion, and buoyancy force can lead to oscillatory dynamic behavior of a ternary mixture in the thermogravitational column. The potentially unstable stratification results from the interplay of mass fluxes of theПоказать полностьюtwo heaviest components where the leading role belongs to one of them. Our experiments and numerical analysis not only evidence the presence of oscillatory instability but also demonstrate the emergence of the secondary instability in the form of swinging pattern in addition to the large-scale standing wave. We suggest that the region, where oscillatory instability occurs, is characterized by opposite signs of Soret ST1′ and thermodiffusion DT1′ coefficients due to large cross-diffusion contribution.</jats:p>

Журнал: Physics of Fluids

Выпуск журнала: Т. 35, № 2

ISSN журнала: 10706631

Издатель: American Institute of Physics

• Seta Berin (Department of Civil and Mechanical Engineering, Technical University of Denmark 1, Koppels Allć, Building 404, DK-2800 Kgs. Lyngby, Denmark)
• Errarte Ane (Mechanical and Manufacturing Department, Mondragon University 2, Loramendi 4, Mondragon 20500, Spain)
• Ryzhkov Ilya I. (Siberian Federal University 4, Svobodny 79, 660041 Krasnoyarsk, Russia)
• Bou-Ali Mounir M. (Mechanical and Manufacturing Department, Mondragon University 2, Loramendi 4, Mondragon 20500, Spain)
• Shevtsova Valentina (Ikerbasque, Basque Foundation for Science 5, Bilbao 20500, Spain)

• Ядро РИНЦ (eLIBRARY.RU)