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Figure 6


Fig. 6. Comparison of the measurements of unsteady coefficients of lift (red) and drag (blue) with the cross-flow vortex model. Tow speed is 0.46 m s–1. The steady measurements are also included. Motion parameters are {phi}0=30°, {theta}0=35°, f=1.25 Hz, U{infty}=0.46 m s–1, span=20 cm, {theta}Bias=0°, St=0.78.