| 题名 | Generalized boundary dilatation flux on a flexible wall |
| 作者 | |
| 通讯作者 | Chen, Tao |
| 发表日期 | 2022-11-01
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| DOI | |
| 发表期刊 | |
| ISSN | 2095-0349
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| 卷号 | 12期号:6 |
| 摘要 | In this paper, by applying theoretical method to the governing equations of compressible viscous flow, we derive the theoretical formula of the boundary dilatation flux (BDF) on a flexible wall, which generalizes the most recent work of Mao et al. (Acta Mechanica Sinica 38 (2022) 321583) for a stationary wall. Different boundary sources of dilatation are explicitly identified, revealing not only the boundary generation mechanisms of vortex sound and entropy sound, but also some additional sources due to the surface vorticity, surface angular velocity, surface acceleration and surface curvature. In particular, the generation mechanism of dilatation at boundary due to the coupled divergence terms is highlighted, namely, the product of the surface velocity divergence (del(partial derivative B) . U) and the vorticity-induced skin friction divergence (del(partial derivative B) . tau(omega)). The former is attributed to the surface flexibility while the latter characterizes the footprints of near-wall coherent structures. Therefore, by properly designing the surface velocity distribution, the dilatation generation at the boundary could be controlled for practical purpose in near-wall compressible viscous flows. (c) 2022 The Author(s). Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
| 关键词 | |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 第一
; 通讯
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| WOS研究方向 | Mechanics
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| WOS类目 | Mechanics
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| WOS记录号 | WOS:000910891100001
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| 出版者 | |
| 来源库 | Web of Science
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| 引用统计 |
被引频次[WOS]：3
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/430997 |
| 专题 | 工学院_力学与航空航天工程系 |
| 作者单位 | 1.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China 2.Western Michigan Univ, Dept Mech & Aerosp Engn, Kalamazoo, MI 49008 USA |
| 第一作者单位 | 力学与航空航天工程系 |
| 通讯作者单位 | 力学与航空航天工程系 |
| 第一作者的第一单位 | 力学与航空航天工程系 |
| 推荐引用方式 GB/T 7714 |
Chen, Tao,Liu, Tianshu. Generalized boundary dilatation flux on a flexible wall[J]. Theoretical and Applied Mechanics Letters,2022,12(6).
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| APA |
Chen, Tao,&Liu, Tianshu.(2022).Generalized boundary dilatation flux on a flexible wall.Theoretical and Applied Mechanics Letters,12(6).
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| MLA |
Chen, Tao,et al."Generalized boundary dilatation flux on a flexible wall".Theoretical and Applied Mechanics Letters 12.6(2022).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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