Data assimilation for magnetohydrodynamics with a zero-divergence constraint on the magnetic field

Author

Teixeira, Bruno O S ; Ridley, Aaron ; Tôrres, Leonardo A B ; Aguirre, Luis A. ; Bernstein, Dennis S.

Author_Institution

Dept. of Electron. Eng., Fed. Univ. of Minas Gerais, Belo Horizonte

fYear

2008

fDate

11-13 June 2008

Firstpage

2534

Lastpage

2539

Abstract

We address the problem of enforcing the zero- divergence constraint in data assimilation for two-dimensional magnetohydrodynamic flow. Using a finite-volume computational model, we compare the performance of the localized unscented Kalman filter with the localized equality-constrained unscented and projected localized unscented Kalman filters, which enforce the zero-divergence constraint.

Keywords

Kalman filters; computational fluid dynamics; data assimilation; finite volume methods; magnetic fields; magnetohydrodynamics; nonlinear filters; data assimilation; finite-volume computational model; localized unscented Kalman filter; magnetic field; magnetohydrodynamics; two-dimensional magnetohydrodynamic flow; zero-divergence constraint; Brazil Council; Computational modeling; Data assimilation; Equations; Finite difference methods; Fluid dynamics; Magnetic fields; Magnetic properties; Magnetohydrodynamics; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2008

Conference_Location

Seattle, WA

ISSN

0743-1619

Print_ISBN

978-1-4244-2078-0

Electronic_ISBN

0743-1619

Type

conf

DOI

10.1109/ACC.2008.4586872

Filename

4586872