heat equation
-
- Posts: 2237
- Joined: 25 Jan 2019, 01:28
- Antispam: Yes
heat equation
Is there a symmetry boundary for the heat equation? If so how do you set it?
Re: heat equation
Hi,
I don't know what you want to do exactly...?
Maybe chapter 9 of the Solver Manual is interesting for you.
Matthias
I don't know what you want to do exactly...?
Maybe chapter 9 of the Solver Manual is interesting for you.
Matthias
-
- Posts: 2237
- Joined: 25 Jan 2019, 01:28
- Antispam: Yes
Re: heat equation
Modeling conduction through a frying pan, but only modeled half of it. I think the symmetry boundary should have no heat flow through it.
-
- Posts: 2237
- Joined: 25 Jan 2019, 01:28
- Antispam: Yes
Re: heat equation
TIme 0 and TIme 49
[attachment=0]time49.png[/attachment- Attachments
-
- time49.png
- (87.89 KiB) Not downloaded yet
Re: heat equation
When I look at the pictures, I don't see an obvious problem. Do you? I may be missing something, of course...
Normally I would just not set any BC at the symmetry border. Since there is nothing behind it, there is nothing which can exchange heat with the half pan.
Matthias
Normally I would just not set any BC at the symmetry border. Since there is nothing behind it, there is nothing which can exchange heat with the half pan.
Matthias
-
- Posts: 2237
- Joined: 25 Jan 2019, 01:28
- Antispam: Yes
Re: heat equation
I believe you are correct, the default is no transfer or radiation, one would have to be defined.
-
- Site Admin
- Posts: 4812
- Joined: 22 Aug 2009, 11:57
- Antispam: Yes
- Location: Espoo, Finland
- Contact:
Re: heat equation
Hi
For Poisson equations (Heat equation is one) the natural BC is also the symmetry BC. So no need to do anything and you get zero normal flux.
-Peter
For Poisson equations (Heat equation is one) the natural BC is also the symmetry BC. So no need to do anything and you get zero normal flux.
-Peter