search

ehsanMa86 / NACA-4digits-m4

GNU General Public License v3.0
3 stars 1 forks source link

Improved skewness & airFoil2D compatibility #2

Closed hrobeers closed 5 years ago

hrobeers commented 5 years ago

Note: I'm still in progress of benchmarking and validating.

These changes do:

  1. Lower maximum skewness
  2. Improve BL refinement
  3. Fix compatibility with airFoil2D tutorial

The images below illustrate the improvements. Note that the resolution is kept identical, this has no impact on skewness but is important when comparing BL refinement.

Full mesh skewness

Original: Full mesh original Improved: Full mesh improved

Zoomed skewness

Original: Full mesh original Improved: Full mesh improved

BL refinement (same number of cells)

Original: Full mesh original Improved: Full mesh improved

hrobeers commented 5 years ago

@ehsanMa86 I'm wondering what you used this mesh for, laminar flow?

I'm far from a mesh independent solution using this mesh for the NACA0012 SA validation case https://turbmodels.larc.nasa.gov/naca0012_val.html

Without these improvements it's not even converging.

I will try to get this mesh closer to the NASA mesh.

ehsanMa86 commented 5 years ago

@hrobeers Wow, this looks great! I merged your changes to the repository. Thanks for your contribution.

I didn't use this mesh for the CFD test cases. So I am short in answering to the question of the convergence of solution.

hrobeers commented 5 years ago

You're welcome, thanks for the great starting point ;)

I'm getting closer to a scalable and validated mesh, updates will follow later.

ehsanMa86 commented 5 years ago

Thanks for improving it. It makes a huge difference.