Fluid flow past a freely moving body in a straight or distorted channel

IF 2.2 3区工程技术 Q2 MECHANICS

Theoretical and Computational Fluid Dynamics Pub Date : 2024-01-25 DOI:10.1007/s00162-023-00684-9

Samire Yazar, Qingsong Liu, Frank T. Smith

引用次数: 0

Abstract

The focus here is on a thin solid body passing through a channel flow and interacting with the flow. Unsteady two-dimensional interactive properties from modelling, analysis and computation are presented along with comparisons. These include the effects of a finite dilation or constriction, as the body travels through, and the effects of a continuing expansion of the vessel. Finite-time clashing of the body with the channel walls is investigated as well as the means to avoid clashing. Sustained oscillations are found to be possible. Wake properties behind the body are obtained, and broad agreement in trends between full-system and reduced-system responses is found for increased body mass.

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流体在笔直或扭曲的通道中流过自由移动的物体

摘要本文的重点是通过通道流动并与流动相互作用的薄固体体。文章介绍了建模、分析和计算得出的非稳态二维交互特性，并进行了比较。其中包括物体通过时有限扩张或收缩的影响，以及容器持续膨胀的影响。研究了船体与通道壁的有限时间碰撞以及避免碰撞的方法。发现持续振荡是可能的。研究还获得了船体后方的波浪特性，并发现当船体质量增加时，全系统响应和缩减系统响应的趋势基本一致。

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

Theoretical and Computational Fluid Dynamics 物理-力学

CiteScore

5.80

自引率

2.90%

发文量

审稿时长

>12 weeks

期刊介绍： Theoretical and Computational Fluid Dynamics provides a forum for the cross fertilization of ideas, tools and techniques across all disciplines in which fluid flow plays a role. The focus is on aspects of fluid dynamics where theory and computation are used to provide insights and data upon which solid physical understanding is revealed. We seek research papers, invited review articles, brief communications, letters and comments addressing flow phenomena of relevance to aeronautical, geophysical, environmental, material, mechanical and life sciences. Papers of a purely algorithmic, experimental or engineering application nature, and papers without significant new physical insights, are outside the scope of this journal. For computational work, authors are responsible for ensuring that any artifacts of discretization and/or implementation are sufficiently controlled such that the numerical results unambiguously support the conclusions drawn. Where appropriate, and to the extent possible, such papers should either include or reference supporting documentation in the form of verification and validation studies.