有限厚柔性壁平面通道内流动的不稳定性

IF 0.6 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2025-07-30 DOI:10.1134/S0015462824605631

A. V. Boiko, E. S. Golub, A. P. Chupakhin

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引用次数: 0

摘要

在小扰动条件下，建立并研究了厚壁柔性通道中粘性不可压缩流动的稳定性模型。利用配点法对得到的特征值问题进行了数值求解。对几种粘弹性材料进行了计算。得到了壁面厚度和特征流速对流动稳定性影响的一些新结果。估计了通道壁材料的粘弹性特性对抑制托尔米恩-施里希汀不稳定性的影响。

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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Instability of the Flow in a Plane Channel with Compliant Walls of Finite Thickness

The model of the stability of viscous incompressible flow in a channel with thick compliant walls is developed and studied under the assumption of small disturbances. The eigenvalue problem thus obtained is solved numerically using the collocation method. The computations are carried out for several viscoelastic materials. Some new results concerning the effect of the wall thickness and the characteristic flow velocity on the flow stability are obtained. The effect of viscoelastic properties of the channel wall material on the suppression of the Tollmien–Schlichting instability is estimated.

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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.