Marangoni convection in a micropolar fluid with feedback control

Author

Abidin, Nadiah H. Z. ; Mokhtar, N.F.M. ; Arbin, N. ; Said, J.M. ; Arifin, N.M.

Author_Institution

Fac. of Comput. & Math. Sci., Univ. Teknol. MARA (Perak), Bandar Seri Iskandar, Malaysia

fYear

2012

fDate

23-26 Sept. 2012

Firstpage

558

Lastpage

562

Abstract

The effect of feedback control on the criterion for the onset of Marangoni convection in a horizontal micropolar fluid layer is studied theoretically. The upper free surface is assumed to be non-deformable and the lower boundary is taken to be rigid and isothermal with fixed temperature and span-vanishing boundaries. A linear stability analysis is used and the Galerkin method is employed to find the critical stability parameters numerically. It is found that the onset of instability can be delayed through the use of feedback control.

Keywords

Galerkin method; convection; flow instability; non-Newtonian flow; non-Newtonian fluids; surface tension; Galerkin method; Marangoni convection onset; critical stability parameters; feedback control effect; fixed temperature; horizontal micropolar fluid layer; instability onset; linear stability analysis; lower boundary; span-vanishing boundaries; upper free surface; Artificial intelligence; Business; Iron; feedback control; marangoni convection; micropolar fluid;

fLanguage

English

Publisher

ieee

Conference_Titel

Business, Engineering and Industrial Applications (ISBEIA), 2012 IEEE Symposium on

Conference_Location

Bandung

Print_ISBN

978-1-4577-1632-4

Type

conf

DOI

10.1109/ISBEIA.2012.6422949

Filename

6422949