(a) Variation of the lift coefficient amplitude against the slip coefficient in the steady and vortical regimes, and (b) comparison of the wake structure for three cases of β = 0.02, 0.1, 1.

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Context 1

... to the no-slip condition, hence a decrease in β in the range 0 < β < 1 leads to an increased amount of slip. Similar to the results reported by Legendre et al. [51], there exists a threshold value for the slip coefficient below which vortex shedding does not occur and the wake remains steady. This trend can be seen in our data illustrated in Fig. 6(a) as the lift amplitude decreases with increasing the amount of slip and drops off to zero at β cr = 0.05. In order to shed light on such behavior, Fig. 6(b) demonstrates the vorticity contours for three cases of β = 0.02, 0.1, 1. It can be seen that the wake turns to steady state for the case of β = 0.02, and the superhydrophobic ...

Context 2

... et al. [51], there exists a threshold value for the slip coefficient below which vortex shedding does not occur and the wake remains steady. This trend can be seen in our data illustrated in Fig. 6(a) as the lift amplitude decreases with increasing the amount of slip and drops off to zero at β cr = 0.05. In order to shed light on such behavior, Fig. 6(b) demonstrates the vorticity contours for three cases of β = 0.02, 0.1, 1. It can be seen that the wake turns to steady state for the case of β = 0.02, and the superhydrophobic condition causes the vortices to become more stretched alongside the streamwise direction compared to the no-slip cylinder (β = 1). ...