[annsal]

hello everyone

I'm using DPM to predict Particulate matter concentration (or dispersion) in the domain of 400mx300mx60m. I decided to simulate it for 24 hours so I can compare it with the actual concentration from sampling. I'm very clueless about the simulation so I have many questions that I want to ask
1. should I simulate steady or unsteady tracking?
2. should it be coupled or uncoupled DPM?
3. the source is traffic, so the injection should be from the road right? and not the inlet
4. how to decide the time step, number of the time step, and iteration. there is that parameter at DPM and the calculation, and what is the difference?
5. what are other important parameters that I should adjust?