Prof. Gilead Tadmor
Department of Electrical & Computer Engineering and Mathematics - Northeastern University
Can Low Order Galerkin Models Work in Active Fluid Flow Control?
Thursday, Apr 17, 2014, 2:00pm to 3:00pm | Room 5-314
Active fluid flow control dates to Prandtl's groundbreaking work on shear layer flows during the first decade of the 20th century and has been the subject of intensive experimental and theoretical research over the past several decades. The potential benefits of success are of truly epic proportions. Yet to date there is no noticeable penetration of active flow control into the realm of engineered products. The talk concerns one largely outstanding hurdle, i.e., the development of low order models suitable for the design of feedback loops for active fluid flow control.
The focus will be on data driven Galerkin models. Motivated by a number of appealing properties, these models are of ubiquitous use in the field. That is the case notwithstanding a persistent mismatch between fundamental axioms underlying the conventional Galerkin framework and basic tenets of most active flow control systems. We shall highlight a few of these difficulties and suggest possible modifications, to accommodate the needs of feedback flow control design.