| 项目编号: | 1632003
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| 项目名称: | EAGER: Network Resilience Analysis of Complex Vortex Interactions |
| 作者: | Kunihiko Taira
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| 承担单位: | Florida State University
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| 批准年: | 2016
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| 开始日期: | 2016-05-15
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| 结束日期: | 2018-04-30
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| 资助金额: | 101330
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | fluid flow
; network analysis
; resilience
; network formulation
; vortex-interaction network
; stability analysis
; traditional analysis technique
; vortical network
; network theory
; continuous dense network representation
; complex nonlinear interaction
; vortical interaction
; fluid network
; hydrodynamic stability analysis
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| 英文摘要: | 1632003 (Taira, Kunihiko)
The objective of the proposed research is to employ theoretical techniques developed for network theory in the analysis of complex, unsteady fluid flows. The work proposed herein is exploratory in nature but is aimed to lay the foundation for examining a range of fundamental fluid flow networks and to incorporate uncertainty quantification, stability analysis, and active control techniques in future studies.
The proposed computational and theoretical work will examine the underlying vortical-interaction networks present in unsteady separated flows and their resilience to perturbations using network analysis. To achieve the goals of this work, we will establish network-based analysis techniques suitable for a continuous dense network representations of fluid flows. Complex nonlinear interactions in fluid flows pose challenges with traditional analysis techniques and have not been systematically analyzed in the past. Network analysis has a great potential for uncovering such important interconnections amongst vortical structures (eddies) in unsteady flows. With knowledge of which interactions are important on the vortical network, graph theory and network analysis can provide guidelines on how to describe the collective dynamics of unsteady fluid flows. The use of network analysis will provide a transformative change to how we examine vortical interactions and energy transfers in fluid flows. By developing the network formulation of fluid flows, we can analyze the resilience of fluid networks against perturbations and external forcing inputs. Understanding the resilience of vortex-interaction networks allows us to identify the sensitive vortical structures and types of disturbances that can globally affect the dynamics of unsteady fluid flows, in a manner complementary to the hydrodynamic stability analysis. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92364
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Kunihiko Taira. EAGER: Network Resilience Analysis of Complex Vortex Interactions. 2016-01-01.
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