FEAP User Forum

FEAP => Input File Issues => Topic started by: Natt on May 29, 2021, 04:13:49 PM

Title: How to apply CSURf in 3D polar problem?
Post by: Natt on May 29, 2021, 04:13:49 PM

Hello,

I am working on a 3D heat problem. I am trying to impose thermal flux in the internal part of the hollow cylinder and temperature on the external part (Icili_1). I used CSURF but it doesn't work maybe I define wrongly the area where I want to impose flux. Also, I don't know if I need to use CBOUN before CSURF or when I use CSURF I don't need to restrain the boundaries before.
As CSURF wasn't working with polar coordinates I made a second mesh (Icili_sides) with cartesian coordinates and applying the SIDE command but It doesn't work with flux.
I attach both of them.

Thanks in advance.

Natalia

Title: Re: How to apply CSURf in 3D polar problem?
Post by: Natt on May 29, 2021, 04:15:28 PM

I forgot to attach the first mesh

Title: Re: How to apply CSURf in 3D polar problem?
Post by: Prof. S. Govindjee on May 29, 2021, 08:01:02 PM

Here is an example you can work off:  http://feap.berkeley.edu/wiki/index.php?title=Hollow_thermal_tube (http://feap.berkeley.edu/wiki/index.php?title=Hollow_thermal_tube)

Title: Re: How to apply CSURf in 3D polar problem?
Post by: Prof. S. Govindjee on May 29, 2021, 08:14:37 PM

Here is a 3D version: http://feap.berkeley.edu/wiki/index.php?title=3D_hollow_thermal_tube (http://feap.berkeley.edu/wiki/index.php?title=3D_hollow_thermal_tube)

Title: Re: How to apply CSURf in 3D polar problem?
Post by: Natt on May 30, 2021, 08:17:56 AM

Dear Prof. S. Govindjee,
Thank you very much for your help and quick response.
Natalia