[Carlos_lboro]

Hello everybody, this is my first post in this forum so I'll try to be concise:

I'm simulating the near wake of a wind turbine by designing an actuator disc, in the simulation I have made the actuator disc as a subdomain porous medium with a momentum loss.
https://goo.gl/photos/1MSUACnsA8D1vZCt9
https://goo.gl/photos/e9bsYd3Si4SH4aBp7
That model worked perfectly fine, no issues there, but then I tried to make it a bit more complex by creating several concentric discs (or rings) each of those being as well a porous subdomain and with different loss coefficients because the energy taken form the wind is different in different parts of the wing.
I found out that the program was not able to calculate de solution, throwing at me an error 2.
Pictures of the second model:
https://goo.gl/photos/TLbbWVTYMZVSeXxTA
https://goo.gl/photos/szG4kNFt66aW75B16
https://goo.gl/photos/3dpiw3YEVVB5JQPe8

Thank you very much for any help or hints that you can give me.