CFD Online Discussion Forums

CFD Online Discussion Forums (
-   CFX (
-   -   interface problem (

c120613 May 18, 2010 11:28

interface problem
Dear All,

I'm working on the domain made of an intake with a rotor of the fan and in that case I have the following message on the interface which could be a problem for the simulations. In fact my simulation stopped after 14 CFX iterations.

The message was as follows:

<img src="info.png">Pitch Change option 'Automatic' has been selected for the domain interface 'R1 to S1'. This option may fail to run in the flow solver if side 1 or 2 of the interface have 360 degree or greater pitch angles, zero radius, mesh faces normal AND parallel to the rotation axis or mesh at the hub curve (low radial or axial position) which are thin in the radial or axial direction.

Please let me know how I can change the option of Automatic!!
Kind regards


zhaowei May 18, 2010 12:12

try none, or input the specific value.

Attesz May 18, 2010 14:32

As zhaowei said, set the pitch angles. This is more stable than automatic.

All times are GMT -4. The time now is 10:17.