Eulerian Model

August 23, 2006, 10:38

Hi everybody

I am modeling a multiphase problem using Eulerian model with a porous media conditions. The porous media section is in between two fluids. What I need is the "lower fluid" should go through porous media and mix up with the fluid at the upper side of porous media section and what I don't want is "upper side fluid" to go down through porous media. But it's not happening that way. Lower fluid is going up through porous media (which I want) and lower is going down too (which I don't want). Hope can I stop upper side fluid not to enter in porous zone. Should I play with inertial and viscous resistance or with porosity?

Thanks Hassan

August 24, 2006, 08:21

you could try fixing the velocity of the upper fluid to zero in the porus zone using the define->boundary conditions->porus->fixed values

August 25, 2006, 10:13

thanks a lot for repling i am goona try that and i will let u know if i get something. i have tried something else too. i put maximum viscous and inertial resistance for upper fluid and it worked for me and fluid did go down. but let me try that option too.

thanks again

August 25, 2006, 12:03

i am sorry. i wanted to say that when i put max inertial and viscous resistance fluid didnt go down

hailejose · August 3, 2023, 05:23

I have a similar issue. However, I can stop the flow to some extent. I still have some amount of flow happening.
I am working with a gas-solid system where the solid shouldn't pass through the porous zone, and the gas should. Any way I can get help?

I have put the resistance to the maximum- 1e30 and 1e20 in both viscous and inertial, respectively. I just saw the thread, and I'm trying a fixed value with velocity 0. can you tell me if it worked for you. and what did not. or any idea on how I can solve this problem.

August 23, 2006, 10:38	Eulerian Model	#1
Hassan Guest Posts: n/a	Hi everybody I am modeling a multiphase problem using Eulerian model with a porous media conditions. The porous media section is in between two fluids. What I need is the "lower fluid" should go through porous media and mix up with the fluid at the upper side of porous media section and what I don't want is "upper side fluid" to go down through porous media. But it's not happening that way. Lower fluid is going up through porous media (which I want) and lower is going down too (which I don't want). Hope can I stop upper side fluid not to enter in porous zone. Should I play with inertial and viscous resistance or with porosity? Thanks Hassan

August 24, 2006, 08:21	Re: Eulerian Model	#2
cadaei Guest Posts: n/a	you could try fixing the velocity of the upper fluid to zero in the porus zone using the define->boundary conditions->porus->fixed values

August 25, 2006, 10:13	Re: Eulerian Model	#3
Hassan Guest Posts: n/a	thanks a lot for repling i am goona try that and i will let u know if i get something. i have tried something else too. i put maximum viscous and inertial resistance for upper fluid and it worked for me and fluid did go down. but let me try that option too. thanks again

August 25, 2006, 12:03	Re: Eulerian Model	#4
Hassan Guest Posts: n/a	i am sorry. i wanted to say that when i put max inertial and viscous resistance fluid didnt go down

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August 3, 2023, 05:23		#5
hailejose New Member Liam Jose Join Date: Mar 2023 Posts: 1 Rep Power: 0	I have a similar issue. However, I can stop the flow to some extent. I still have some amount of flow happening. I am working with a gas-solid system where the solid shouldn't pass through the porous zone, and the gas should. Any way I can get help? I have put the resistance to the maximum- 1e30 and 1e20 in both viscous and inertial, respectively. I just saw the thread, and I'm trying a fixed value with velocity 0. can you tell me if it worked for you. and what did not. or any idea on how I can solve this problem.