how to generate moving meshes (please tell me)
 

Hello.
I am trying to research about fluid flow in a tunnel-like case using Openfoam.
I want to impose cyclic boundary condition to the inlet and outlet of the case.
And I study ''when an object moves in the case, how the fluids flow?''
So, I need to generate moving meshes like here↓

http://blog.fusha.org/200906/article_1.html

http://blog.fusha.org/200907/article_1.html


I try to generate moving meshes referring to the tutorials of the pimpleDyMFoam.
But if I impose cyclic boundary condition to the inlet and outlet of the case, the case it self moves toward x axis.


So, Please tell me how to generate moving meshes like these.