Reply To: Discrete phase model (DPM) – Injection speed (m/s)

[ai0013]

Hello
DPM mass flow rate and DPM initial velocity are independent inputs for your point injection. Note that this is a discrete mass flow rate and not a continuous mass flow (m_dot = rho*vel*area is not valid), instead m_dot = # particles / sec * mass_particle. If you set your DPM mass flow rate you know the mass of the particle based on density and diameter, the # particles / sec (usually referred as the "strength") is the reciprocal of your particle time step.

We have not specified any velocity here yet, so that's why you need that input too.