Learning Forum

[Timothée Herbeau]

Hello !

I am modeling DPM particles being trapped with the boundary conditions "Trap". I am running steady state simulations and would like to know how much particles get stuck on the walls. I do so by plotting the integral on the wall of the concentration of the DPM.

My concern is that this quantity seems to increase endlessly, i don't know if it is just because the solution is converging or because the particles that are trapped are not reset every DPM iteration. 

My question is: does a DPM iteration in Steady simulation reset particles that are trapped ? If not, do you know what kind of model should i use to simulate particles sticking on a wall in steady simulation ? 

 

Thank you for your help !

[Prashanth]

Hello,

For steady flows, you can first get a converged steady flow and then do a DPM study over it.

You can also freeze the flow if you want, after convergence by switching off the equations. Then a DPM study