[MengyingS]

After I importing the mesh, a black line and a white arrow appears. I know the black line is rotation axis. But what is the arrow?

It isn't the direction of rotation, is it?

http://www.cfd-online.com/Forums/mem...-geometry.html

I don't know how to insert image. T^T

[turbo]

Originally Posted by MengyingS

After I importing the mesh, a black line and a white arrow appears. I know the black line is rotation axis. But what is the arrow?

It isn't the direction of rotation, is it?

http://www.cfd-online.com/Forums/mem...-geometry.html

I don't know how to insert image. T^T

It shows the direction of your impeller. If it is a compressor, your speed (rpm) needs to be of an opposite sign because it shows a wrong direction.

[MengyingS]

I changed the direction, and it achieved convergence.
Thank you so much!

[MengyingS]

Originally Posted by turbo

It shows the direction of your impeller. If it is a compressor, your speed (rpm) needs to be of an opposite sign because it shows a wrong direction.

I changed the direction, and it achieved convergence.

Thank you so much!