海尔-肖池内垂直振动下的胶体悬浮液对流

IF 1 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2024-11-07 DOI:10.1134/S0015462824602730

I. N. Cherepanov, B. L. Smorodin

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引用次数: 0

摘要

在有限振幅的垂直振动下，对 Hele-Shaw 单元中胶体二元混合物的对流进行了数值模拟。找到了在调制重力场中对流不稳定性的边界。构建了分岔图，并分析了各种解对应的纳米粒子浓度分布。研究了纳米粒子正热扩散及其重力分层情况下的热振动对流。结果表明，根据频率的不同，振动既可以增加对流的强度，也可以减弱对流的强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Convective Flows of a Colloidal Suspension in a Hele-Shaw Cell under Vertical Vibrations

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Convective Flows of a Colloidal Suspension in a Hele-Shaw Cell under Vertical Vibrations

Numerical simulation of convection of a colloidal binary mixture in a Hele-Shaw cell under vertical vibrations of finite amplitude has been carried out. The boundary of convective instability in a modulated gravity field is found. Bifurcation diagrams are constructed and the concentration distributions of nanoparticles corresponding to various solutions are analyzed. Thermal vibration convective flows are studied in the case of positive thermal diffusion of nanoparticles and their gravitational stratification. It is shown that vibrations, depending on the frequency, can both increase the intensity of the convective flow and weaken it.

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.