Localized convective flows in a nonuniformly heated liquid layer

Autor:	D. V. Knyazev, S. N. Aristov
Rok vydání:	2014
Předmět:	Fluid Flow and Transfer Processes Convection Physics Mechanical Engineering Liquid layer General Physics and Astronomy Stratification (water) Monotonic function Mechanics Isothermal process Vortex Physics::Fluid Dynamics Classical mechanics Vertical velocity
Zdroj:	Fluid Dynamics. 49:565-575
ISSN:	1573-8507 0015-4628
DOI:	10.1134/s0015462814050020
Popis:	Within the class of exact solutions of the thermal-convection equations in the Oberbeck-Boussinesq approximation, which assumes a linear dependence of the temperature and the vertical velocity component on the height, a non-self-similar behavior of localized disturbances of a special type in a nonuniformly heated liquid layer is studied. It is shown that in an unstably stratified medium these disturbances can evolve to isothermal vortex structures of Burgers type. In the conditions of stable stratification or uniform heating of the layer, the disturbances considered tend to the state of rest in an oscillating or monotonic manner. New solutions describing self-similar convective vortices are found.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ed19eb54a8cd1b4327cb6886a40d11d https://doi.org/10.1134/s0015462814050020 Zobrazit plný text záznamu Plný text ve formátu PDF