Note on the Physical Basis of the Kutta Condition in Unsteady Two-Dimensional Panel Methods

Figure 5

Thrust coefficient as a function of the Strouhal number St, for . Blue squares: finite trailing-edge pressure difference, lower than 10% of the maximum pressure coefficient, with ranging from 0.20, at St = 0.1, to 0.05, at St = 0.45; red circles: null trailing-edge pressure difference, with ranging from 0.15, at St = 0.1, to 0.04, at St = 0.45.