Access to cells density value

mostanad · August 31, 2021, 01:59

Hi All,
I am wondering if there any possibility to have access to the cells density value and making change in them? I wanna change the density value in some specific cells that I know their IDs. How is this possible?
Cheers,
Mohammad

Swagga5aur · September 7, 2021, 16:24

Hello Mohammad,

Can you please elaborate upon the meaning of cell density? Do you wish to refine the mesh in certain areas or near a certain edge?

Regards, Lasse

mostanad · September 7, 2021, 19:43

Hi Lasse,
I mean the density value, $\rho$ , in computational cell. I want to change the density value in some specific cell in a part of my solver.
Mohammad

Swagga5aur · September 8, 2021, 13:33

Hello Mohammed,
I would look into fvOptions and fixedValueConstrain.
This can be applied to a cellZone or just cells with certain id's by specifying all cells and then get the cell id which is needed. Let me know if you need further assistance.
Regards Lasse

August 31, 2021, 01:59	Access to cells density value	#1
mostanad Senior Member mohammad Join Date: Sep 2015 Posts: 274 Rep Power: 11	Hi All, I am wondering if there any possibility to have access to the cells density value and making change in them? I wanna change the density value in some specific cells that I know their IDs. How is this possible? Cheers, Mohammad

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September 7, 2021, 16:24		#2
Swagga5aur Senior Member Lasse Brams Vinther Join Date: Oct 2015 Posts: 112 Rep Power: 10	Hello Mohammad, Can you please elaborate upon the meaning of cell density? Do you wish to refine the mesh in certain areas or near a certain edge? Regards, Lasse

September 7, 2021, 19:43		#3
mostanad Senior Member mohammad Join Date: Sep 2015 Posts: 274 Rep Power: 11	Hi Lasse, I mean the density value, $\rho$ , in computational cell. I want to change the density value in some specific cell in a part of my solver. Mohammad

September 8, 2021, 13:33		#4
Swagga5aur Senior Member Lasse Brams Vinther Join Date: Oct 2015 Posts: 112 Rep Power: 10	Hello Mohammed, I would look into fvOptions and fixedValueConstrain. This can be applied to a cellZone or just cells with certain id's by specifying all cells and then get the cell id which is needed. Let me know if you need further assistance. Regards Lasse