A Systems-Theory Approach to Flow Control
Lead Research Organisation:
Imperial College London
Department Name: Electrical and Electronic Engineering
Abstract
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.
Organisations
Publications
Abdessemed N
(2009)
Transient growth analysis of the flow past a circular cylinder
in Physics of Fluids
McKEON B
(2010)
A critical-layer framework for turbulent pipe flow
in Journal of Fluid Mechanics
McKeon B
(2013)
Experimental manipulation of wall turbulence: A systems approach
in Physics of Fluids
Sharma A
(2011)
Relaminarisation of Ret = 100 channel flow with globally stabilising linear feedback control
in Physics of Fluids
Sharma A
(2010)
Transient growth mechanisms of low Reynolds number flow over a low-pressure turbine blade
in Theoretical and Computational Fluid Dynamics