[danyvijayabalan]

i need to analyse pressure drop across mixer pipe on aftertreatment, but the pipe boudary normals must be alligned to z direction(flow direction) for 2d boundary conditions, i dont know how to do this?

[jetcheve]

Originally Posted by danyvijayabalan

i need to analyse pressure drop across mixer pipe on aftertreatment, but the pipe boudary normals must be alligned to z direction(flow direction) for 2d boundary conditions, i dont know how to do this?

Hi Dany, if you're looking for your flow axis to be aligned with the z-axis you can rotate and translate your geometry under the Transform tab in the Geometry dock.

If your normals are pointing the wrong direction you can fix this under the Geometry dock as well using the Normal tab.

Let me know if this answers your question

- John

[jetcheve]

Originally Posted by danyvijayabalan

i need to analyse pressure drop across mixer pipe on aftertreatment, but the pipe boudary normals must be alligned to z direction(flow direction) for 2d boundary conditions, i dont know how to do this?

Also - are you sure a 2-D boundary condition is right for your work? It may be more appropriate to do a 3-D sector geometry for a pipe.

[danyvijayabalan]

thank you sir

[danyvijayabalan]

Originally Posted by danyvijayabalan

thank you sir

and i also have difficulty to patch the mixer ends with the mixer pipe(after using polygonica tool), nonmanifold and normal orientation problems were raised.