A Systems-Theory Approach to Flow Control

流量控制的系统理论方法

• 批准号: EP/E017304/1
• 负责人: David Limebeer
• 金额: $ 34.8万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE017304%2F1
• 关键词: Systems; Theory; Approach; Flow; Control

This project aims to deliver a general control-theoretical foundation for feedback flow control that is robust and which explicitly recognises the limitations associated with current actuation technologies, such as the requirement that all actuation and sensing is performed at the wall. The long-term goal is to control flows over a surface densely carpeted with sensors and actuators. These sensors will gather the kind of information required to make accurate control decisions based on real-time feedback control. Surface actuators will be used to alter the flow and bring it back to a desired state (of laminar flow). An embedded sensor will usually measure surface forces (shear and pressure) while actuation might be a deformable surface (an array of dimples), surface transpiration from jets of various types or electromagnetic forcing.

该项目旨在为反馈流控制提供一个通用的控制理论基础，该控制理论基础是稳健的，并且明确认识到与当前驱动技术相关的局限性，例如所有驱动和传感都在墙壁上执行的要求。长期目标是控制布满传感器和执行器的表面上的流量。这些传感器将收集基于实时反馈控制做出准确控制决策所需的信息。表面执行器将用于改变流动并将其恢复到所需状态（层流）。嵌入式传感器通常会测量表面力（剪切力和压力），而驱动可能是可变形表面（凹坑阵列）、各种类型射流的表面蒸腾或电磁力。

项目成果

Experimental manipulation of wall turbulence: a systems approach

• DOI: 10.1063/1.4793444
• 发表时间: 2013-03
• 期刊: Physics of Fluids
• 影响因子: 4.6
• 作者: B. McKeon;Ati S. Sharma;I. Jacobi

A critical-layer framework for turbulent pipe flow

• DOI: 10.1017/s002211201000176x
• 发表时间: 2010-09-01
• 期刊: JOURNAL OF FLUID MECHANICS
• 影响因子: 3.7
• 作者: McKeon, B. J.;Sharma, A. S.
• 通讯作者: Sharma, A. S.

Transient growth mechanisms of low Reynolds number flow over a low-pressure turbine blade

低压涡轮叶片上低雷诺数流的瞬态增长机制

• DOI: 10.1007/s00162-010-0183-9
• 发表时间: 2010
• 期刊: Theoretical and Computational Fluid Dynamics
• 影响因子: 3.4
• 作者: Sharma A