Research Article

Open-Water Thrust and Torque Predictions of a Ducted Propeller System with a Panel Method

Figure 8

Comparison between predicted thrust and torque coefficients for the Ka4-70 propeller inside duct 19Am. Predictions are presented for the transpiration velocity gap model (a) and the closed gap model (b).
474785.fig.008a
(a)
474785.fig.008b
(b)