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[ANSYS Meshing] Some help needed

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Old   June 17, 2017, 13:52
Unhappy Some help needed
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Luis Vinagre
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Hi everyone, I am new around here and I am trying to find some help. Maybe this question is solved in other post so, if anyone knows where to look just tell me.

My problem is that I have to make an aerodynamic study of a car with Ansys Fluent and I am currently trying to make the best meshing as possible but i dont know how to improve it, I mean, I created the study and all that stuff but dont know how and what to check to improve and get a more accurate one.

If anyone is a little bored and wanna help me, please let me know, i would be very happy

Thxs in advance!
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Old   June 17, 2017, 14:29
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Hello, is it a 2D or 3D investigation?
Thanks
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Old   June 17, 2017, 15:55
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Quote:
Originally Posted by Ahmed Saeed Mansour View Post
Hello, is it a 2D or 3D investigation?
Thanks
Is a 3D investigation, I imported the stp file (CATIA) to Ansys and then create the mesh on it. The problem is that when i try to read the user guide its not so clear about what to use and I didnt find any "Ansys fluent for dummies" or any meshing tutorial that could be useful to me.

In case someone needs more information to help me just ask and i will tell all i can say, or maybe send you any file somehow.
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Old   June 17, 2017, 16:05
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Have you tried using icem for meshing? There is a good tutorial for airfoil block meshing. That would come in handy for the Ahmed body study

Sent from my CW-Hi10 plus using CFD Online Forum mobile app
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Old   June 17, 2017, 16:13
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Quote:
Originally Posted by Luigiv View Post
Is a 3D investigation, I imported the stp file (CATIA) to Ansys and then create the mesh on it. The problem is that when i try to read the user guide its not so clear about what to use and I didnt find any "Ansys fluent for dummies" or any meshing tutorial that could be useful to me.

In case someone needs more information to help me just ask and i will tell all i can say, or maybe send you any file somehow.
Try this but use Fluent and tell me the progress please..Thanks
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Old   June 17, 2017, 16:37
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Quote:
Originally Posted by Ahmed Saeed Mansour View Post
Try this but use Fluent and tell me the progress please..Thanks
Thanks to both of you, but i would prefer to use the meshing part of Ansys Fluent, as I dont have much time and im using the university computer.

Thanks again for the attention!
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Old   June 17, 2017, 16:43
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Which method you will follow? If you are a beginner and do not have time, avoid using ICEM and follow the videos like what I sent but you have to be sure of the mesh max skewness is lower than 0.98 for convergence and carry out the refinement at the critical surfaces and calculate the 1st layer thickness according to the y+
Thanks
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Old   June 17, 2017, 17:37
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Quote:
Originally Posted by Ahmed Saeed Mansour View Post
Which method you will follow? If you are a beginner and do not have time, avoid using ICEM and follow the videos like what I sent but you have to be sure of the mesh max skewness is lower than 0.98 for convergence and carry out the refinement at the critical surfaces and calculate the 1st layer thickness according to the y+
Thanks
Thanks! Which video you mean? Yeah, im a totally beginner, where to check that options at the fluent mesh part? If someone wanna check what im testing i can send him/her my work so he/she can show me
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Old   June 17, 2017, 18:14
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You now in the meshing or the solver step? You can follow the tutorial I sent and try to make the mesh and use fluent then tell me
Thanks
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Old   June 17, 2017, 22:29
Default Possibly define geometry
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As a first step I would recommend defining the geometry very clearly. I understand it is three-dimensional but without knowing what the geometry is it is perhaps not possible to suggest what mesh strategies to use or recommend.
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