[lethu]

Hello everyone,

I am trying to simulate particles transport in a water channel.
So first, I have simulated water running in the channel with air on top of it using interFoam. I have unphysical results at the outlet such as in the topic

https://www.cfd-online.com/Forums/openfoam-solving/93702-channel-flow-using-interfoam.html

I extracted the interface of this case anyway. Now I am trying to run simulation with uncoupledKinematicParcelFoam.
I want to use the latest results of this interFoam simulation, only for the U file, as initial conditions.
Problem is the domain is now smaller than the first simulation (but more cells).

It seems that mapFields is not ok with that.

Does anyone know how to solve this problem ?

I have already studied the hopper tutorial.

Thanks !