Hi @varsey!
First of all I’m sorry for the absence, and thank you for your review on my simulation. I really appreciated!
Regarding your last post, about the specific example on how to find the D-F numbers, I took a look and it seems really interesting. However I don’t have some of the important data about the porous zone geometry I’m trying to imitate in these simulations. For instance, I don’t have the mean particles diameter (D) nor the porosity (eps). All the data I have is the pressure drop per mass flow and the basic dimensions of the radiator, like frontal area, length, depth and height. With these I can estimate the flow velocity in the core of the radiator and plot a Pressure Drop x Flow Velocity graph.
Checking these equations I noticed that there are similar equations in that material I first referenced to, in this ANSYS TUTORIAL LINK.
If you check equations 7.19-17 and 7.19-18 you will see the similarity. Like I said before, the problem is I don’t have those parameters (D and eps), however the therms alpha and C2 I managed to find in the way specified in that same web page in equations 7.19-23 to 7.19-27, with the Pressure Drop and Flow Velocity data.
That method gave me a negative Darcy parameter, which I though it was OK because in the example this same coefficient is also negative. Now I’m not sure if it is correct.
Thank you for your attention @varsey, I’ll keep trying. Once I get it right I’ll share here the procedures I took.
Regards.