[Eleven Leo]

Hi,

I am using Converge 3.0, I use the "Full_cylinder_diesel_engine_with_induction_transi ent_RANS" case, I delete the original piston, and import my own piston. But a warning is found:
"Warning [1850] There may be an alignmenterror.
The maximum projected area of a non-moving or reloft triangle with the motion vector is 1.87e-04.
For properly aligned moving surface, this area should be less than 1.66e-08

Warning: [1851] Boundary 2 of type WALL is not aligned, and it is attached to boundary 1, which is moving.
The triangle of maximum alignment error is centered at -6.08e-02 -2.13e-02 -1.10e-01"

The Boundary 2 is the cylinder liner, and Boundary 1 is the piston.
Could anyone know what is the problem?

Thank you very much for your help.

Best wishes

Yaopeng

[dprobst]

Yes - we cover this in our introductory training. When there is a moving surface, the adjacent stationary triangles need to be aligned with the motion. After you have imported the new piston, re-create the liner triangles in the exact correct direction (sweep or loft directionally).
Please consider attending the introductory CONVERGE training or contact support directly for instruction.

[Eleven Leo]

Originally Posted by dprobst

Yes - we cover this in our introductory training. When there is a moving surface, the adjacent stationary triangles need to be aligned with the motion. After you have imported the new piston, re-create the liner triangles in the exact correct direction (sweep or loft directionally).
Please consider attending the introductory CONVERGE training or contact support directly for instruction.

Hi Dan Probst,

Thank you very much for your answer, I will contact the support.

Best wishes

Yaopeng