Abstract:

Aerodynamic characteristics of a WIG craft in flight close to wavy ground are investigated numerically. The Farve-averaged N-S equation of unsteady compressible flow and the standard k-εturbulence model are solved by Fluent software. The sliding mesh is used to treat with the relative movement between the craft and the wavy ground. The aerodynamic forces of the WIG craft are periodic when it flies over the cosineshaped ground. How do the aerodynamic forces vary with time in one period is presented.

Key words: WIG , craft,  , wavy , ground,  , aerodynamic , characteristic,  , pressure , distribution,  , k-&epsilon, turbulence , model