Numerical calculation of the optimal circulation distribution on ship propeller considering about skew

In order to obtain the influence of skew, the lifting line - vortex model was used to calculate the optimal circulation of propeller. The adhesion vortex was laid in the midline of propeller blade, when analyzed the skew. If the propeller doesn´t have skew, the lifting line also is a radial line, or else, the lifting line is a space line. Though the comparison of calculation results, it shows that the influence of skew is opposition between axial induce velocity and tangential induce velocity. Along with the skew angle increasing, the hydro-pitch angle of inner radial domain is increscent, but it presented the opposition phenomenon in the outer radial domain.