# Mesh quality check fail

**URL:** <https://www.simscale.com/forum/t/mesh-quality-check-fail/81593>\
**Category:** Project Support\
**Created:** [February 5, 2018, 4:18am UTC](https://www.simscale.com/forum/t/mesh-quality-check-fail/81593 "2018-02-05T04:18:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![ksum](https://www.simscale.com/forum/letter_avatar/ksum/32/5_5575768a8748004e209b776fc1b2916d.png) [@ksum](https://www.simscale.com/forum/u/ksum)\
**Post date:** [February 5, 2018, 4:18am UTC](https://www.simscale.com/forum/t/mesh-quality-check-fail/81593/1 "2018-02-05T04:18:35Z")

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Hi everyone,

I am currently doing a parametric study of the blend wing body aircraft. I am having a problem with meshing my model. I tried improving the refinement but the problem did not resolve. The edges of the mesh seem ununiform.

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Appreciate any help,  
Kim

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**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\
**Post date:** [February 5, 2018, 6:46am UTC](https://www.simscale.com/forum/t/mesh-quality-check-fail/81593/2 "2018-02-05T06:46:00Z")

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Hi @ksum!

I will have a look at your project and get back to you asap!

Best,

Jousef

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**Author:** ![ksum](https://www.simscale.com/forum/letter_avatar/ksum/32/5_5575768a8748004e209b776fc1b2916d.png) [@ksum](https://www.simscale.com/forum/u/ksum)\
**Post date:** [February 5, 2018, 9:24am UTC](https://www.simscale.com/forum/t/mesh-quality-check-fail/81593/3 "2018-02-05T09:24:58Z")

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Hi @jousefm

After more refinement the mesh passed the check. I am doing mesh convergence study. The success mesh have 287175 nodes. How do i effectively refine the results by lets say 1.5 time. From what i know increasing the region refinement would increase the nodes by at least 4 times

Thanks  
Kim

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**Author:** ![jousefm](https://www.simscale.com/forum/user_avatar/www.simscale.com/jousefm/32/34908_2.png) [@jousefm](https://www.simscale.com/forum/u/jousefm)\
**Post date:** [February 18, 2018, 11:24pm UTC](https://www.simscale.com/forum/t/mesh-quality-check-fail/81593/4 "2018-02-18T23:24:44Z")

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Hi @ksum!

My suggestion would be to set up a study and vary single refinements to see how they affect your study. If you have a multi-component system and you refine one of them I am afraid that your rule will not hold. Let’s go for the brute force approach 😉

All the best!

Jousef