solver selection_dynamic mesh_leak simulation

nikhil108 · August 13, 2020, 13:04

Hallo Foamers,

i am trying to do leak simulation, propane gas is leaking from a inlet and in the domain, i have air completely. propane leak stops after sometime, leaked propane because of density, comes down and forms a cloud on the ground.
So, as of now i am using rhoReactingBuoyantFoam, with reactions off. I selected this solver for buoyancy treatment. Is there any other solver which can be used for this case?. I ran the case with this solver, and everything seems good. But, i want to add dynamic mesh (ABR to scalar propane), but this solver does not support dynamic mesh. i had a look at some posts, but didnt found any information on adding dynamic mesh capability to the solver code.

1. which solver is suitable for this application?
2. How to add dynamic mesh capability to a solver?

Any suggestions?

cheers,
nikhil.

clapointe · August 13, 2020, 17:32

Without knowing which version of openfoam you're using, it is hard to provide concrete advice. As of about openfoam 5 dynamic mesh capability was added to reactingFoam, which may aid in adding that capability to rhoReactingBuoyantFoam. That said, I've published an AMR-enabled version of fireFoam that should work for your case. Here's the link to the repository : https://github.com/clapointe2011/public -- it should compile for Openfoam 6.

Caelan

nikhil108 · August 13, 2020, 17:43

Dear clapointe,

Thanks for the reply, i am using openfoam7. Right now, I am trying to add DynamicFvMesh capability to reacting Foam, by myself. But there is much change in the results (flux), when I tried to validate the edited solver, with the existing mesh (I am working on it). Anyway, I will go through your solver, and let you know if it works for me. Thanks for sharing.

cheers,
nm.

nikhil108 · August 13, 2020, 18:01

Dear clapointe,

I checked reactingFoam solvers of OpenFOAM 3, 4, 5, 6, but I didn't found any dynamic mesh header?

cheers,
nm.

clapointe · August 13, 2020, 18:09

Ah, so my guess was wrong. Check out Openfoam 7 : https://github.com/OpenFOAM/OpenFOAM...ReactingFoam.C.

Caelan

nikhil108 · August 13, 2020, 18:12

great, Thank you clapointe.

cheers,
nm.

August 13, 2020, 13:04	solver selection_dynamic mesh_leak simulation	#1
nikhil108 Member Nikhil Join Date: May 2020 Location: Freiburg Posts: 43 Rep Power: 6	Hallo Foamers, i am trying to do leak simulation, propane gas is leaking from a inlet and in the domain, i have air completely. propane leak stops after sometime, leaked propane because of density, comes down and forms a cloud on the ground. So, as of now i am using rhoReactingBuoyantFoam, with reactions off. I selected this solver for buoyancy treatment. Is there any other solver which can be used for this case?. I ran the case with this solver, and everything seems good. But, i want to add dynamic mesh (ABR to scalar propane), but this solver does not support dynamic mesh. i had a look at some posts, but didnt found any information on adding dynamic mesh capability to the solver code. 1. which solver is suitable for this application? 2. How to add dynamic mesh capability to a solver? Any suggestions? cheers, nikhil.

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August 13, 2020, 17:32		#2
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 15	Without knowing which version of openfoam you're using, it is hard to provide concrete advice. As of about openfoam 5 dynamic mesh capability was added to reactingFoam, which may aid in adding that capability to rhoReactingBuoyantFoam. That said, I've published an AMR-enabled version of fireFoam that should work for your case. Here's the link to the repository : https://github.com/clapointe2011/public -- it should compile for Openfoam 6. Caelan

August 13, 2020, 17:43		#3
nikhil108 Member Nikhil Join Date: May 2020 Location: Freiburg Posts: 43 Rep Power: 6	Dear clapointe, Thanks for the reply, i am using openfoam7. Right now, I am trying to add DynamicFvMesh capability to reacting Foam, by myself. But there is much change in the results (flux), when I tried to validate the edited solver, with the existing mesh (I am working on it). Anyway, I will go through your solver, and let you know if it works for me. Thanks for sharing. cheers, nm.

August 13, 2020, 18:01		#4
nikhil108 Member Nikhil Join Date: May 2020 Location: Freiburg Posts: 43 Rep Power: 6	Dear clapointe, I checked reactingFoam solvers of OpenFOAM 3, 4, 5, 6, but I didn't found any dynamic mesh header? cheers, nm.

August 13, 2020, 18:09		#5
clapointe Senior Member Join Date: Aug 2015 Posts: 494 Rep Power: 15	Ah, so my guess was wrong. Check out Openfoam 7 : https://github.com/OpenFOAM/OpenFOAM...ReactingFoam.C. Caelan

August 13, 2020, 18:12		#6
nikhil108 Member Nikhil Join Date: May 2020 Location: Freiburg Posts: 43 Rep Power: 6	great, Thank you clapointe. cheers, nm.