In the case of an elastically mounted rectangular prism with a side ratio of less than D/H = 0.5 (where D: depth of a bluff body in the flow direction, H: height of a bluff body normal to the flow direction), it is well known that low-speed galloping appears at a lower reduced velocity than the resonant reduced velocity.In order to investigate the

The mobility of a quadrotor UAV is significantly affected by its aerodynamics, especially when the closely spaced rotors are applied in the multi-rotor system.This paper addresses the aerodynamic modeling of non-planar quadrotor UAV with various rotor spacing (1 d−2 d) and disk plane angle (0−50 deg).The inter-rotor BLADDERWRACK interfe