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Fig. 9. Non-dimensional angular velocity of pitching rotation and azimuthal rotation (A), lift coefficient CL (B) and drag coefficient CD (C) versus time during one cycle for three different timings of wing rotation (midstroke angle of attack {alpha}m=35°, non-dimensional duration of wing rotation {Delta}{tau}r=0.36{tau}c). {tau}c, non-dimensional period of one flapping cycle; {tau}, non-dimensional time.





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