µ(I)-Rheology and continuum modeling of granular flows

D0rian · June 6, 2019, 02:13

Hello everyone,

I'm interested by the simulation of granular flows using the continuum approach (so without LIGGGHTS). In a first time, I would like to find a way to implement the most common µ(I)-rheology before moving to more complex models like the non-local granular fluidity model. Unfortunately I am still a beginner regarding implementation and programming and I don't really know how/where to start with openFoam. I'm not interested by the coupling with a gas/liquid phase for now, so I guess twoPhaseEulerFoam is not suitable. I'm only interested by accurately represent the solid phase alone.

Do you know if such a solver has already been implemented in OpenFoam? Or a similar solver that I can modify? I am a bit lost right now, so I'll be extremely grateful if you have any advice about the way to go.

Thank you very much.

ahparvin · August 25, 2021, 10:21

if you still need it, follow this link.

https://zenodo.org/record/4964189#.YSZRlXUzbJU

Nasos_bal · June 23, 2022, 05:27

Hello! I would also want to implement the mu(I) model in interFoam! I found the one you uploaded and looking into the code in .C file I am a little confused about the pressure. Why do we have to define a Peff pessure which is Peff=P -rho*g*h? I think that this is the hydrostatic one defined in interFoam solver. Could anyone make a more clear explanation

June 6, 2019, 02:13	µ(I)-Rheology and continuum modeling of granular flows	#1
D0rian New Member Join Date: Jun 2019 Posts: 1 Rep Power: 0	Hello everyone, I'm interested by the simulation of granular flows using the continuum approach (so without LIGGGHTS). In a first time, I would like to find a way to implement the most common µ(I)-rheology before moving to more complex models like the non-local granular fluidity model. Unfortunately I am still a beginner regarding implementation and programming and I don't really know how/where to start with openFoam. I'm not interested by the coupling with a gas/liquid phase for now, so I guess twoPhaseEulerFoam is not suitable. I'm only interested by accurately represent the solid phase alone. Do you know if such a solver has already been implemented in OpenFoam? Or a similar solver that I can modify? I am a bit lost right now, so I'll be extremely grateful if you have any advice about the way to go. Thank you very much.

August 25, 2021, 10:21		#2
ahparvin New Member Join Date: Dec 2020 Posts: 9 Rep Power: 5	if you still need it, follow this link. https://zenodo.org/record/4964189#.YSZRlXUzbJU

June 23, 2022, 05:27		#3
Nasos_bal New Member Nasos_bal Join Date: Oct 2021 Posts: 8 Rep Power: 4	Hello! I would also want to implement the mu(I) model in interFoam! I found the one you uploaded and looking into the code in .C file I am a little confused about the pressure. Why do we have to define a Peff pessure which is Peff=P -rhogh? I think that this is the hydrostatic one defined in interFoam solver. Could anyone make a more clear explanation