How to Freeze The Velocity Field, Only Solve DPM+FILM MODEL

Jeeloong · October 15, 2017, 08:43

Dear All,

I got one question. So I have a converged solution for dpm+velocity and wall film. The relative changes are negligible.

I am interested to solve only the dpm breakup and injection also the trajectory should also based on one way coupling with the velocity field. And to have dpm impingement on the wall and form a film.

I did the following:
1. SWITCH OFF Equation for (FLOW) & (Turbulence k and omega)
2. DO ONE WAY TURBULENCE COUPLING
3. RUN SIMULATION

when I output my images for the flow field. it still changes.

Please help!

Thanks

Sincerely,
Jee Loong
UK

rezaeimahdi · February 14, 2022, 02:15

Hi,

I have the same problem with fluent, any solution?

Thanks

rezaeimahdi · February 14, 2022, 03:53

Well, I found a solution for my case, but not sure if it is correct, needs to investigate a little more.

Actually, I am modelling a steady flow with 1-way coupling for DPM.

In Fluent :

solution> control> Equations

Here you can select which equations you want to solve. In my case, I run a steady case first, and then due to the 1-way coupling, uncheck the flow equations and run the simulation again.

October 15, 2017, 08:43	How to Freeze The Velocity Field, Only Solve DPM+FILM MODEL	#1
Jeeloong Member Join Date: Jan 2015 Location: United Kingdom Posts: 53 Rep Power: 11	Dear All, I got one question. So I have a converged solution for dpm+velocity and wall film. The relative changes are negligible. I am interested to solve only the dpm breakup and injection also the trajectory should also based on one way coupling with the velocity field. And to have dpm impingement on the wall and form a film. I did the following: 1. SWITCH OFF Equation for (FLOW) & (Turbulence k and omega) 2. DO ONE WAY TURBULENCE COUPLING 3. RUN SIMULATION when I output my images for the flow field. it still changes. Please help! Thanks Sincerely, Jee Loong UK

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February 14, 2022, 02:15		#2
rezaeimahdi Member mahdi Join Date: Nov 2015 Location: Paris, France Posts: 32 Rep Power: 10	Hi, I have the same problem with fluent, any solution? Thanks

February 14, 2022, 03:53		#3
rezaeimahdi Member mahdi Join Date: Nov 2015 Location: Paris, France Posts: 32 Rep Power: 10	Well, I found a solution for my case, but not sure if it is correct, needs to investigate a little more. Actually, I am modelling a steady flow with 1-way coupling for DPM. In Fluent : solution> control> Equations Here you can select which equations you want to solve. In my case, I run a steady case first, and then due to the 1-way coupling, uncheck the flow equations and run the simulation again.