Thermal convection of fluid-saturated granular medium in acoustic field

被引：1

作者：

Sorokin, Konstantin E. ^{[1
]}

Perepechko, Yuri V. ^{[1
]}

机构：

[1] Russian Acad Sci, Dept Endogenous & Technogen Syst Dynam Modeling, Sobolev Inst Geol & Mineral, Siberian Branch, Acad Koptyuga Ave 3, Novosibirsk, Russia

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 2021年 / 93卷 / 02期

关键词：

acoustic impact; finite volume method; granular medium; modified SIMPLE procedure; Rayleigh-Benard convection; thermodynamically consistent model; two-velocity hydrodynamics; SLOW-WAVE; MATHEMATICAL-MODELS; POROUS-MEDIUM; EARTHQUAKE; VIBRATION; VOLCANOS; HEAT;

D O I：

10.1002/fld.4885

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

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.

引用

页码：339 / 355

页数：17

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