Study of suction and injection combination on the onset of double-diffusive convection in a micropolar fluid
The effect of suction and injection combination (SIC) on the onset of double-diffusive convection in a micropolar fluid is studied us- ing linear stability theory. The eigenvalue is obtained for free-free, rigid-free, rigid-rigid velocity boundary combinations with isother- mal or adiabatic on the spin-vanishing boundaries numerically using Galerkin Technique. The influence of various micropolar fluid param- eters on the onset of convection has been analyzed. It is found that by adjusting SIC it is possible to control the double-diffusive convection in a micropolar fluid. It is also observed that the effect of Prandtl number on the stability of the system is dependent on the SIC being pro-gravity or anti-gravity.