Reply To: How to get droplet deposition mass flux ?

[DrAmine]

Is all about the injection direction and physics: heavy droplets might settle down. Lightweight will travel with the flow. Estimate the Stokes Number and judge the droplet behavior. You are getting what you are inputting into the Fluent. You might also need to account for more dispersion (turbulent) as well as Lift Force. For Lift you require a fluid lift force.
Random velocity fluctuation is not a warranty that you will get more droplets deposited.