Is there any other way to do restart for transient calculation with moving meshes then to use smap restart? Could I use my flow field from last iteration, for instance... Thanks for your time....

You can do a normal restart. Where is your problem?

Just add an additional load step if you want to change the boundary conditions (rdat init) does not work for moving mesh cases).

I don't want to change boundary conditions, my problem is a appropriate initial condition. When I did just restart, my mesh was complete mass, I had doubled time steps... Thanks a lot!!