How to compile a new drag force in Lagrangian model

lilinmin · May 31, 2016, 08:05

Dear Foamers,
I am now working with the gas-particle simulation. I have added a new drag model in the Drag file as the same way as other drag forces. But a don't know how to compile it. Can anyone help me ?
Thank you very much in advance.
Linmin

elmo555 · May 31, 2016, 08:56

Hey,

can you be a bit more specific? Which solver are you using, and how did you add the new drag model?

lilinmin · May 31, 2016, 09:40

Quote:

Originally Posted by elmo555

Hey,

can you be a bit more specific? Which solver are you using, and how did you add the new drag model?

Thank you very much for reply and I am sorry for that. I copied a file of the existed drag model in the file "src/lagrangian/intermediate/submodels/Kinematic/ParticleForces/Drag" and changed the code. Can it been compiled?

elmo555 · May 31, 2016, 10:07

Well, you need to re-compile the solver you're using, and you shouldn't modify the original OF solver. There are many tutorials out there explaining how to create a new solver based on an exisiting one, e.g. here.

Basically: copy the original code to your working folder, adjust the name and EXE path, and add your drag model (using #include) where all the other drag models are included. Then compile the solver and you should be able to use your drag model.

a.weber · June 9, 2016, 04:15

BTW: The force model list is found in intermediate/parcels/include/MakeParcelForces.C
This is where you have to add it.

regards
Andreas

May 31, 2016, 08:05	How to compile a new drag force in Lagrangian model	#1
lilinmin New Member Li Linmin Join Date: Nov 2015 Location: China Posts: 27 Rep Power: 10	Dear Foamers, I am now working with the gas-particle simulation. I have added a new drag model in the Drag file as the same way as other drag forces. But a don't know how to compile it. Can anyone help me ? Thank you very much in advance. Linmin

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May 31, 2016, 08:56		#2
elmo555 Member Lennart Join Date: Feb 2016 Posts: 46 Rep Power: 10	Hey, can you be a bit more specific? Which solver are you using, and how did you add the new drag model?

May 31, 2016, 10:07		#4
elmo555 Member Lennart Join Date: Feb 2016 Posts: 46 Rep Power: 10	Well, you need to re-compile the solver you're using, and you shouldn't modify the original OF solver. There are many tutorials out there explaining how to create a new solver based on an exisiting one, e.g. here. Basically: copy the original code to your working folder, adjust the name and EXE path, and add your drag model (using #include) where all the other drag models are included. Then compile the solver and you should be able to use your drag model.

June 9, 2016, 04:15		#5
a.weber Member Andreas Weber Join Date: Jun 2014 Posts: 37 Rep Power: 11	BTW: The force model list is found in intermediate/parcels/include/MakeParcelForces.C This is where you have to add it. regards Andreas