Title :
Design of optimal boundary control for nonstationary doubly diffusive convective flow
Author_Institution :
Dept. of Math. Sci., Univ. of Alabama, Huntsville, AL, USA
Abstract :
An optimal control design and computation are presented for control of doubly diffusive convective flows. Convective flow is often undesirable in crystal growth and therefore it is natural to try and mitigate it. We will consider the canonical doubly diffusive flow in a rectangular enclosure in which natural convection occurs due to imposed thermal and concentration gradients. The control action to suppress the convection is effected by the movement of top wall. The results show that the control is effective in driving the convective flow to a purely diffusive flow.
Keywords :
control system synthesis; convection; distributed parameter systems; flow control; optimal control; canonical doubly diffusive flow; concentration gradient; convection suppression; crystal growth; doubly diffusive convective flow control; nonstationary doubly diffusive convective flow; optimal boundary control design; rectangular enclosure; thermal gradient; top wall movement; Cavity resonators; Clocks; Crystals; Equations; Mathematical model; Optimal control; Temperature control;
Conference_Titel :
American Control Conference (ACC), 2012
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4577-1095-7
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2012.6315629
