Learning Forum

[Amir]

Hi there,

which type of Spline, ICEM CFD are using to create a curve from points? e.g., for three points

1. Linear Spline

2. Quadratic Spline

3. Cubic Spline

4. B-Spline (Basis Spline)

5. NURBS (Non-Uniform Rational B-Spline)

6. Bezier Spline

7. Catmull-Rom Spline

8. Hermite Spline

9. Akima Spline

thanks

[Essence]

Hello,

It depends on what you are trying to model and what do you expect. Because, each of them behave differently. What are you trying to mesh?

[Amir]

Hi Essence,

What do you mean it depends? would you please clarify it generally speaking as I will have different case studies later

also, in my current case, I have three points using the command (From Points (key=Ctrl-c)) and started to select them from left to right.

thanks

[Essence]

What I mean to say is, by choosing different options, the curves created will be different. Because, they use different algorithm to create the curves. It would be good if you can share the model or share the screenshot of what you are creating a model of.

[Amir]

yes, but it doesn't have any other sub-option in this command

and this is my current model, really simple,

[Essence]

Yes, ICEM do not have the options mentioned by you. You can just try the "Arc" option if the joining the points is the only main concern.

[Amir]

 

ok, so ICEM CFD with which of the spline algorithms generally speaking connects points to create curves, as I should know for the three points and for future which would be more complex case studies

which type of Spline generation methods, ICEM CFD use to create a curve from points?

 

1. Linear Spline

 

1. Quadratic Spline

 

1. Cubic Spline

 

1. B-Spline (Basis Spline)

 

1. NURBS (Non-Uniform Rational B-Spline)

 

1. Bezier Spline

 

1. Catmull-Rom Spline

 

1. Hermite Spline

 

1. Akima Spline

 

 

 

[Essence]

From both "From Points" and "Arc", ICEM uses B-spline to generate the curve. For more information, please the Ansys guide link:

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v232/en/icm_help/igeom_createcurvefrompts.html

[Amir]

what is this? Ansys Customer Support Space Registration Form

I don't have such information, a customer number,.....

 only I have a research license installed by the university, they have the research and teaching licenses

 

[Essence]

If you are unable to access the link, follow this Forum discussion /forum/forums/topic/using-help-with-links/#latest