Parametric elbow pipe
 

Hi, I'm tryring to make a parametric study of an elbow pipe. I've already seen the ansys tutorial on this model, but differently of that study, I would like to modify the elbow angle. The problem is when the angle becomes zero (straight pipe), the arc joining both straight parts disappears.

Does anyone have an idea to solve it? I could just separate it into two different problems (straight and elbow), but there's probably a way to do this.

Thanks