Numerical study on the bouncing dynamics of droplets impacting on a macro-textured superhydrophobic surface

•The judge-like and wing-like rebounding behaviors are crucial for the step-like contact time.•The enough angular momentum in sub-droplets makes greater reduction of the contact time.•The re-attachment is caused by the competition between recoiling and rotation of droplets.•A brief theoretical analysis for critical weber number and contact time in wing-like dynamics.