Saeed Jaamei

ompression of the trapped air between the wing and the surface, which in the case, this surface is the sea. In this paper, the performance of Wigcrafts under the influence of wing geometry is evaluated. The wing has been fixed with three types of progressive designs, swept forward, swept back and rectangular wing with 4° mounting angle to the body. The hull and tail of the vessel are the same in all three models. The angle of sweep forward and sweep back wing is 45 degrees. Conceptual design with IGES format in AutoCAD software. Numerical calculations are simulated in the star CCM+ software assuming a non-uniform flow, k Epsilone Tourbulent, and in two phases with the aulerian multi-phazes model. The surface of the water is flat and without waves. The dimensionless parameters of the lift, drag and torque of all three models were compared. In the discussion of stability, only the pitch of all three vessels is free. From the free surface view, pressure contours, shear stress and sheil friction are presented on the model and water level in all three simulations. The results of all three are similar. The results of all three simulations are summarized and examined by the assumptions of flying bodies and the aerodynamics laws of different wing designs.