TY - GEN
T1 - Strategies for optimal control of global modes
AU - Marquet, Olivier
AU - Sipp, Denis
AU - Jacquin, Laurent
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The aim of this paper is to expose two different strategies for the optimal control of a three-dimensional global mode in a two-dimensional recirculation bubble. The formulation of the optimal control problem, that consists to reduce the energy growth of the global mode, depends on the characteristics of the actuation - unsteady and three-dimensional or steady and two-dimensional. A gradient-based optimization procedure is used and the gradient is evaluated using the adjoint of the stability equations in the former case and the adjoint of the stability equations as well as the adjoint of the base flow equations in the latter case.
AB - The aim of this paper is to expose two different strategies for the optimal control of a three-dimensional global mode in a two-dimensional recirculation bubble. The formulation of the optimal control problem, that consists to reduce the energy growth of the global mode, depends on the characteristics of the actuation - unsteady and three-dimensional or steady and two-dimensional. A gradient-based optimization procedure is used and the gradient is evaluated using the adjoint of the stability equations in the former case and the adjoint of the stability equations as well as the adjoint of the base flow equations in the latter case.
KW - Optimal control
KW - Recirculation bubble
UR - https://www.scopus.com/pages/publications/84861080822
U2 - 10.1007/978-1-4020-6858-4_42
DO - 10.1007/978-1-4020-6858-4_42
M3 - Conference contribution
AN - SCOPUS:84861080822
SN - 9781402068577
T3 - Solid Mechanics and its Applications
SP - 353
EP - 357
BT - IUTAM Symposium on Flow Control and MEMS - Proceedings of the IUTAM Symposium
T2 - IUTAM Symposium on Flow Control and MEMS
Y2 - 19 September 2006 through 22 September 2006
ER -