This work considers the micropolar hybrid nanofluid flows between porous channel walls with distinct nanoparticles such as Copper (Cu) and Alumina ([Formula: see text]) with fuzzy extension. The volume fraction of hybrid nanoparticles is regarded as an uncertain parameter and represented using a triangular fuzzy number varying between [Formula: see text] and [Formula: see text] to enh... https://parisnaturalfoodes.shop/product-category/whole-psyllium-husks/