[michalpacholczyk]

Hi Guys!

Can somebody please help me with issues i cannot overcome. I try to simulate flow over terrain with use of the methodology applied in Windsim e.g. over ABL set to 500m there is a free stream velocity (k-epsilon with standard wall). As an inlet boundaries i use following equations:



Domain is cylindrical in order to simualte flow in 8 directions and has 800m, top boundary is set to symmetry. Mesh, i guess, is quiet dense with first layer set to 1m and growth ratio of 1,18:



And now the issue: with free stream velocity set to 5m/s turbulent viscosity ratio is limited in 1.6M over total 4.6M as shown on the following picture:



What am i doing wrong??

Thanks you in advance Guys!