NUMERICAL INVESTIGATION OF UNSTEADY FREE CONVECTIVE MICROPOLAR FLUID FLOW BETWEEN PARALLEL PLATE
Keywords:
micropolar fluid, heat transfer, horizontal walls, finite difference technique, suction, stability analysisAbstract
An extensive computational analysis was conducted to examine the dynamics of unsteady natural convective flow involving a micro-polar fluid confined between two parallel horizontal plates with both plates being stationary. Through employing conventional transformation, the governing equations, initially in the form of partial differential equations, have been converted into dimensionless equations which have been subsequently solved using the finite difference technique. The numerical solutions were obtained using both MATLAB R2015 and Studio Developer FORTRAN 6.6a. The case is considered to be related to the disappearance of the anti-symmetry component of the stress tensor, which indicates a subtle concentration. To comprehensively understand the impact of physical parameters, rigorous analysis was performed on stability and convergence criteria. Employing an appropriate mesh space, the impact of various parameters on key factors like velocity, angular velocity and temperature local shear stress, couple stress and the Nusselt number has been investigated. The outcomes of this analysis have been visualized through graphical representations. The dimensionless time is obtained by the time-sensitivity test, while the mesh sensitivity tests as well as the validation test have been conducted and presented. Finally, the attained outcomes were compared with the published findings, which were shown graphically for a comprehensive evaluation.
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