Electrically Controlled Rotor Blade Vortex Interaction Airloads and Noise Analysis Using Viscous Vortex Particle Method

Figure 7

BVI-induced airloads of the ECR and conventional rotor. (a) Disc airloads distribution of the ECR with pre-index angle; (b) disc airloads distribution of the conventional rotor; (c) high-frequency (>10/rev) section normal force at 70% span location; (d) high-frequency (>10/rev) section normal force at 87% span location.

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(b)

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(d)