Optimal Feedback Control of Vortex Shedding Using Proper Orthogonal Decomposition Models  

Oleh:

Hall, James K. ; Banda, Siva ; Addington, Gregory A. ; Myatt, James H. ; Singh, Sahjendra N.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Fluids Engineering vol. 123 no. 3 (2001), page 612-618.
Topik: decomposition; feedback; control; vortex shedding; orthogonal; decomposition; models

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

This paper treats the question of control of two - dimensional incompressible, unsteady wake flow behind a circular cylinder at Reynolds number Re = 100. Two finite - dimensional lower order models based on proper orthogonal decomposition (POD) are considered for the control system design. Control action is achieved via cylinder rotation. Linear optimal control theory is used for obtaining stabilizing feedback control systems. An expression for the region of stability of the system is derived. Simulation results for 18 - mode POD models obtained using the control function and penalty methods are presented. These results show that in the closed - loop system mode amplitudes asymptotically converge to the chosen equilibrium state for each flow model for large perturbations in the initial states.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali