Study on uncertain impact of thermal radiation on micropolar hybrid nanofluid flow between porous channel walls with distinct nanoparticles

This work considers the micropolar hybrid nanofluid flows between porous channel walls with distinct nanoparticles such as Copper (<i>Cu</i>) and Alumina (Al2O3) with fuzzy extension. The volume fraction of hybrid nanoparticles is regarded as an uncertain parameter and represented using a triangular fuzzy number varying between 0% and 2% to enhance the uncertainty in the current study. Thermal radiation is a kind of heat transmission and one of several strategies to improve thermal efficiency in various systems. The proposed micropolar hybrid nanofluid flow examines the thermal radiation effect that enhances the thermal efficiency of the flow between the porous channels. A novel generalized double parameter-based homotopy approach is used to study and analyse the uncertain impact of different parameters on the thermal and velocity profiles of the micropolar hybrid nanofluid flow. Finally, the results obtained are validated in a crisp case to test the accuracy of the proposed technique.