I want to study the behavior of the particle under the unsteady flow. Consider a situation where the flow through a pipe in pulsatile in nature, say at the inlet to the pipe, the velocity is given as V=V_0*(1+sin(w*t)). If I solve the unsteady Fluent Solver, it will give the result, but what happens if I wants to solve the DPM along with this.

For, steady flow like V=V_0, first the eulerian flow field has to be solved, then we switch on the DPM. Now, how to implement this in case of pulsatile problem.

Thanks in advance.