Mean Flows Induced by Oscillations of a Solid Body Immersed in an Isothermal Liquid

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Microgravity Science and Technology Pub Date : 2025-08-06 DOI:10.1007/s12217-025-10197-1

T. P. Lyubimova, D. V. Lyubimov, A. A. Ivanova, V. G. Kozlov, S. Meradji, B. Roux

引用次数: 0

Abstract

Mean flows induced by linear high frequency vibrations of a solid body immersed in a liquid or in contact with a free surface are studied experimentally and theoretically. It is shown that the flow structure and intensity strongly depend on a liquid viscosity and the shape of a solid body. Experiments and numerical simulations performed for the configuration imitating the Czochralski crystal growth method enabled us to emphasize the role of different vibrational mechanisms, and the role of the radius of curvature of a crystal edge (in the case of crystal immersed in the melt). Three different vibrational mechanisms of mean flow generation have been identified and emphasized.

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浸泡在等温液体中的固体振荡引起的平均流动

本文从实验和理论两方面研究了浸入液体或接触自由表面的固体的线性高频振动所引起的平均流动。结果表明，流体的流动结构和强度与液体的粘度和固体的形状密切相关。模拟Czochralski晶体生长方法的实验和数值模拟使我们能够强调不同振动机制的作用，以及晶体边缘曲率半径的作用（在晶体浸入熔体的情况下）。确定并强调了三种不同的平均流产生的振动机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Microgravity Science and Technology 工程技术-工程：宇航

CiteScore

3.50

自引率

44.40%

发文量

期刊介绍： Microgravity Science and Technology – An International Journal for Microgravity and Space Exploration Related Research is a is a peer-reviewed scientific journal concerned with all topics, experimental as well as theoretical, related to research carried out under conditions of altered gravity. Microgravity Science and Technology publishes papers dealing with studies performed on and prepared for platforms that provide real microgravity conditions (such as drop towers, parabolic flights, sounding rockets, reentry capsules and orbiting platforms), and on ground-based facilities aiming to simulate microgravity conditions on earth (such as levitrons, clinostats, random positioning machines, bed rest facilities, and micro-scale or neutral buoyancy facilities) or providing artificial gravity conditions (such as centrifuges). Data from preparatory tests, hardware and instrumentation developments, lessons learnt as well as theoretical gravity-related considerations are welcome. Included science disciplines with gravity-related topics are: − materials science − fluid mechanics − process engineering − physics − chemistry − heat and mass transfer − gravitational biology − radiation biology − exobiology and astrobiology − human physiology