Hi all I am using fluid-structure-interaction(fsi) interface to simulate a microfludic device,which allows cells flowing through the channel.
As the length of the channel is not very important for my simulation(what is important for my simulation is the final steady-state of cell), I want to keep the cell in the center of the fluid domain.
I read some paper which define a barycenter cell velocity, so movement of all quantities (fluid, cell) is considered to relative to the barycenter velocity.
The problem is that this barycenter velocity should be a time-dependent velocity calculated from each step and cannot be pre-defined. Can anybody give me some clues on how to define a barycenter velocity of cell?