Cataracting-centrifuging transition investigation using nonspherical and spherical particles in a rotary drum through CFD simulations

•The cataracting-centrifuging transition was systematically investigated.•The drum length plays an important role in the cataracting-centrifuging transition.•Nonspherical particles required lower critical rotation speeds for centrifuging.•The particle shape was shown to be related to the critical solid friction.