Numerical simulation of the streamline of the 3-D obstacle with stratified flow

The numerical model of the spatial flow over an obstacle of arbitrary shape is proposed on the basis of the equations of a viscous incompressible density-inhomogeneous fluid. The method of fictitious domains is used for the solution of the problem on the boundary. Some computational results are presented that illustrated the influence of the shapes of obstacles and of upstream flow velocity on the structure of lee waves.