Hi Syavash,

 

I have not been able to find cases where H = 1 [m]. The only from scratch creation, I was able to find is for H = 28 [mm]. If you could point me in the right direction, that would be most helpful.

 

The current mesh that I am working with is from the example provided in my previous thread. This mesh however doesn’t allow for me to separate between a top and bottom boundary. Although, there are ways around this, it is time consuming and prone to errors. I am just trying to keep the same mesh as the baseline case that I am currently running, while including this modification on the boundaries so I can make slight changes and see how that effects the simulation overall.

 

Thanks,

-- 

Dustin (Ting-Hsuan) Ma

Graduate Researcher

Department of Mechanical and Materials Science

University of Pittsburgh

Tim48@pitt.edu

 

 

From: Ehsan Asgari <eh.asgari@gmail.com>
Date: Tuesday, March 21, 2023 at 3:07 PM
To: Ma, Ting-Hsuan <TIM48@pitt.edu>, nektar-users@imperial.ac.uk <nektar-users@imperial.ac.uk>
Subject: Re: [Nektar-users] Extract .geo file from .xml file

Hi Dustin

 

Is there a specific reason for not creating a mesh from scratch? The period hill is a well-known benchmark with analytical geometry definition.

 

Kind regards

syavash

 

On Tue, Mar 21, 2023, 21:47 Ma, Ting-Hsuan <TIM48@pitt.edu> wrote:

This email from TIM48@pitt.edu originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list to disable email stamping for this address.

 

Hi,

 

I am working on reverse creating the periodic hill case provided in appendix A of https://www.sciencedirect.com/science/article/pii/S0010465515000533?via%3Dihub#s000140 . Whist working on this, I was able to use python to extract the vertex and line information from the .xml file provided However, even doing so does not provide a straight forward way for me to separate the noslip boundaries into a top and bottom boundary. Furthermore, when I loaded this extracted version into Gmsh, some errors did arise and the mesh seems to be more complicated than what I would have hoped.

 

I would like to know if anyone has done this in the past? If so, could you give me a walkthrough of how you could successfully recreate this mesh? Or if there are ways existing out there that’ll allow me to separate the noslip boundary condition into 2 sub categories.

 

Thanks,

Dustin Ma

 

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