A study of the couple stress on micropolar fluid flow saturating a porous medium in the presence of dust particles with hall current

Abstract

In this paper, the effect of couple stress on the micropolar fluid layer heated from below in the presence of dust particles through the porous medium with hall current has been investigated. The dispersion relation is derived using the normal mode technique, and the influences of porosity, magnetic field, dust particles, couple stress parameter, and micropolar parameters are analyzed both analytically and numerically. The numerical solutions are obtained using MATLAB. The impact of dust particles is a very important result of this model. These results have been compared with previous work, and they are in good agreement.

Keywords

• Couple stress
• Micropolar fluid
• Porous medium
• Hall current