I have run 334 particles for 10000-time steps, with 0.0001s time step size, the remote computer which I perform my simulation on has processor: nInlet (R) Xeon (R) CPU E3 1280 v5 @3.70 GHz.nI solved the continuous phase as first with periodic boundary condition and specified air mass flow of zero kg/s, and then the DPM simulation as next step.nWhat make me confused about Residual, because the residual monitor for the first step (mass air flow = 0) showed no velocity and continuity, whereas for the DPM simulation, the monitor shows velocity and continuity iterations.nRegardsn