[famerfamer]

Hey guys,

I have a starightener which is made of cylinder tubes. The porosity is 70%. So I treat it as a porous media. But I have some questions.

1.I wonder how to set up those parameters, like porous inertial and viscous resistance. Just follow the equation in the turorial?

2.How about the turbulence length scale? I found that usually it's 7% of the diameter if it's a tube. Is that correct?

3.Do I need to specify the mass and momentum source option? If yes, the mass source is just the mass flow rate in the inlet?

4.I also notice that there is node named AXIS, how to specify that? The flow direction into the porous media or using the default one?

5. How about the delta P/L? DO I need to specify it and where?

6. What's the superficial velocity? (m/s)

7. I only need to specify parameters within the region part, correct? Or I also need some initial value for the porous region, like pressure and mass flow rate?

I appreciate any help!