Инд. авторы:	Sorokin K.E., Perepechko Y.V.
Заглавие:	Thermal convection of fluid-saturated granular medium in acoustic field
Библ. ссылка:	Sorokin K.E., Perepechko Y.V. Thermal convection of fluid-saturated granular medium in acoustic field // International Journal for Numerical Methods in Fluids. - 2020. - ISSN 0271-2091. - EISSN 1097-0363.
Внешние системы:	DOI: 10.1002/fld.4885; SCOPUS: 2-s2.0-85088867597; WoS: 000555375900001;
Реферат:	eng: This article presents the results of numerical analysis of acoustic impact generated by small finite source on heat and mass transfer of fluid-saturated granular medium in a cavity heated from below. Thermodynamically consistent model of two-phase medium is obtained by the method of conservation laws suggesting no equilibrium in pressure between the phases. The transition from diffusive to convective regime of heat and mass transfer in fluid-saturated granular medium as a consequence of acoustic impact is shown. Effect of source frequency and initial flow pattern on the intensity of convective instability and configuration of dissipative structure is studied. Formation of stable and symmetric convective structure by choosing the source frequency is illustrated. © 2020 John Wiley & Sons, Ltd.
Ключевые слова:	Two phase medium; Thermal convections; Source frequency; Heat and mass transfer; Dissipative structure; Convective instabilities; Conservation law; Acoustic impacts; Thermoacoustics; Mass transfer; Granular materials; Flow patterns; Acoustic fields; two-velocity hydrodynamics; thermodynamically consistent model; Rayleigh-Benard convection; modified SIMPLE procedure; granular medium; finite volume method; acoustic impact; Heat convection;
Издано:	2020