Аннотация:Authors investigate the problem of body or system of bodies motion in
uid.
Bodies may move according to predened rule of move under the in
uence of
uid forces
and external forces (for example, gravity force). The modeling of the
ow past bodies is
done with vortex method within the model of ideal incompressible
uid. With this the
flow separation is suggested on predened separation lines. Evolution of vortex wake is
done within Lagrange approach. To nd motion law together with
uid equations the
dynamic equations are solved.