▎ 摘　　要

The mixed convection in a cubical cavity with active lateral walls and filled with a graphene-platinum hybrid nanofluid was investigated numerically and exclusively in the present paper. The lateral left and back sidewalls were kept at a hot temperature (T-h), while the lateral right and front sidewalls were kept at a cold temperature (T-c). Both the top and bottom walls were assumed thermally insulated. The top wall of the cavity was considered moving with two different directions. The first one is in the x-direction (case I), while the second case is in the z-direction (case II). Also, the case of the fixed top wall was studied just for comparison. The solid volume fractions have been varied as 0