Algorithms for Automatic Feedback Control of Aerodynamic Flows

CFD is now a mature technology and can be used as a
design tool in addition to being used as an analysis
tool. Shape optimization involves finding the shape
(2D or 3D) that optimizes a certain performance
index. Clearly, any optimum shape will be optimum
only at the design point. What we need to do is to
design and develop a feasible way of controlling the
flow at any operating point such that the resulting
performance is optimal. This work focuses on
deriving algorithmic frameworks for the control of
Aerodynamic Phenomena. In designing control laws,
our philosophy has been to develop an algorithmic
framework that enables treating a broad class of
control problems. This ensures that once a framework
is established, extensions to specific problems can
be done with very little effort. The application of
one such control law to the control of Flutter is
discussed in detail. Flutter is an aero-structural
instability that arises due to the adverse transfer
of energy between the airplane structure and the
surrounding fluid. This book is intended for
graduate students and professionals working in CFD
and Optimal Flow Control.

Autorentext

Karthik completed his B. Tech. from IIT Madras, and his Ph. D. from Stanford University. Both his degrees are in Aerospace Engineering. At Stanford, he worked with Prof. Antony Jameson. His research interests include Computational Fluid Dynamics, Numerical Methods for Partial Differential Equations, Optimization and Optimal Control Theory.

Klappentext

CFD is now a mature technology and can be used as a design tool in addition to being used as an analysis tool. Shape optimization involves finding the shape (2D or 3D) that optimizes a certain performance index. Clearly, any optimum shape will be optimum only at the design point. What we need to do is to design and develop a feasible way of controlling the flow at any operating point such that the resulting performance is optimal. This work focuses on deriving algorithmic frameworks for the control of Aerodynamic Phenomena. In designing control laws, our philosophy has been to develop an algorithmic framework that enables treating a broad class of control problems. This ensures that once a framework is established, extensions to specific problems can be done with very little effort. The application of one such control law to the control of Flutter is discussed in detail. Flutter is an aero-structural instability that arises due to the adverse transfer of energy between the airplane structure and the surrounding fluid. This book is intended for graduate students and professionals working in CFD and Optimal Flow Control.