Learning Forum

[akin3rd]

Hello

It seems the mesh around the airfoil I generated has a high aspect ratio and has poor quality elements

There are regions close to the airfoil wall where the mesh just becomes unstructured as shown below:

The mesh was created using edge sizing with biases towards the airfoil wall, one of them shown below:

The Mesh controls utilized are shown below:

inflation was created to help capture the effects of the boundary layer.

 

Also when I tried to run the simulation in fluent it gave this warning:

"Limited wall distance for 3 cells to 1.000000e-12.

Please inspect the wall distance by displaying the

contours of the 'Cell Wall Distance' at the

boundaries. If you observe any irregularities we

recommend the use of an alternative algorithm to

correct the wall

Please select /solve/initialize/repair-wall-distance

using the text user interface to switch to the

alternative algorithm"

How do I solve this issue?

[peteroznewman]

You may find it better to remove the vertical trailing edge from the inflation definition.

[Keyur Kanade]

as peter mentioned, please improve selection. 

also please go through following and try to create that mesh. 

please follow

https://confluence.cornell.edu/display/SIMULATION/FLUENT+-+Flow+over+an+Airfoil