Learning Forum

[davidobembe]

I've been trying to Run calculations on my model in Ansys fluent and it keeps coming back to me with a message saying 'floating point exception' i'm not exactly sure what i'm doing wrong! are there any tips that could help or is is there a problem with my boundary conditions 

[Rob]

Floating point can mean a divide by zero is occurring somewhere. Check the mesh quality (skewness under 0.8) and also the boundary conditions & models.

 

As an aside, this would be better in the Physics -> Fluids part of the forum. I'll move it tomorrow.

[Keyur Kanade]

moving to fluid dynamics. 

please check the mesh quality. 

please insert some images for the mesh and your set up. 

[davidobembe]

hello thanks for getting back to me, i checked and improved mesh qulity but that didn't work either. Here's a screenshot of what i'm doing.

 

[DrAmine]

Can you add more information: Does it happen right away or after something? Do you have dynamic Mesh? Are you using UDF's? Please add more details otherwise we cannot provide any help here.

[Rokual]

Hello, I think I got the same problem.

* It happens right away during the calculation
* I don't have a dynamic mesh
* I don't' know what UDF is

 

My mesh:

 

[Rokual]

I created a new message for this issue at:
/forum/forums/topic/divergence-detected-in-amg-solver-and-floating-point-exception-in-ansys-fluent/