Open boundary condition

[Wenjie Xu]

Dear All,

 

Does anybody has experience of open boundary conditions using OGS? I have a mass transport and multi-phase flow coupled model in which component should be able to flow out of the domain cross a boundary with liquid. Can OGS deal with such kind of boundary condition?

 

Best regards

 

Wenjie

[Marc Walther]

Hi Wenkui,

I was just recently testing a similar condition - enclosed is a picture,
where some concentration (bottom of left side) is set to a 1st type BC
and getting into the domain with the flow. On top of that, flow is
pointing outwards of the domain and the mass BC is deactivated; there,
concentration is leaving the domain. Is this, what you are looking for?

Cheers,
Marc

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Dipl.-Hydrol. Marc Walther

Department of Environmental Informatics
Helmholtz Centre for Environmental Research - UFZ
Permoserstraße 15, 04318 Leipzig, Germany

Phone +49 341 235 10 54
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[Jhonny Encalada]

Hello Wenjie,

I just saw your post from 2014. I was wondering if you got to solve this issue about open boundary conditions. I am trying to do the same. Do you already know how to do that?

Thanks,

Jhonny

[Wenjie Xu]

Hallo Jhonny,

 

I still don’t know how to do that.

 

Cheers

 

Wenjie

 

发件人: ogs-...@googlegroups.com [mailto:ogs-...@googlegroups.com] 代表 Jhonny Encalada
发送时间: 2016年7月19日 14:58
收件人: ogs-users
抄送: ogs-...@googlegroups.com
主题: Re: Open boundary condition

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[Marc Walther]

Dear Jhonny and Wenjie,

I proposed a solution back then to Wenji, but I don't know if that is what,
you need (below my answer back then and enclosed a picture).

Let me know, if you need any assistance in this.

Cheers,
Marc

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Sent from my mobile device, please excuse spelling mistakes.


Marc Walther
Hydrologist
JProf Dr. rer. nat.

Helmholtz Centre for Environmental Research - UFZ

Department of Environmental Informatics

Permoserstraße 15, 04318 Leipzig, Germany

Technische Universität Dresden
Faculty of Environmental Sciences
Department of Hydrosciences
Institute for Groundwater Management
01062 Dresden

Visiting Address UFZ
Permoserstraße 15, 04318 Leipzig
Building 7.2, Room E110

Visiting Address TUD
Bergstr. 66, 01069 Dresden
Neubau Chemie 2. Bauabschnitt, CHE-BA2, Room P204

Phone +49 341 235 10 54
Fax +49 341 235 19 39
Mobile +49 178 334 18 19

Email marc.w...@ufz.de
Web http:/​/​www​.​ufz​.​de
Personal http:/​/​www​.​ufz​.​de/​index​.​php​?​en=​32239

ResGate http:/​/​www​.​researchgate​.​net/​profile/​Marc_Walther

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Registered Office: Leipzig
Registration Office: Amtsgericht Leipzig
Trade Register Nr. B 4703
Chairman of the Supervisory Board: MinR Wilfried Kraus
Scientific Director: Prof. Dr. Georg Teutsch
Administrative Director: Dr. Heike Graßmann

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--- Forwarded message ---
From: Marc Walther <marc.w...@ufz.de>
Date: 23 October 2014 12:45:44 p.m.
Subject: Re: 答复: Open boundary condition
To: Wenjie Xu <wenji...@gmail.com>

Dear Wenjie,

I am sorry, that I mistook you for Wenkui... the names are too similar
for me. Anyway, you are still invited for a chat in my office - but it
would probably take you a long time to come to Leipzig ;)
Hope, you got your things working. If you still need help, feel free to
send me an example setup of yours and I can take a look.

Cheers,
Marc



On 23.10.2014 10:12, Marc Walther wrote:
> You don't need to define anything for mass transport at your outflow
> boundary. It's that simple.
>
> I'm in my office, if you want to chat...
>
>
>
> On 23.10.2014 10:09, Wenjie Xu wrote:
>> Dear Marc,
>>
>> Could you please provide me an example to show how to define the Open
>> BC? I tried by my own model, but it doesn't work.
>>
>> Best regards,
>>
>> Wenjie
>>
>> -----邮件原件-----
>> 发件人: ogs-...@googlegroups.com [mailto:ogs-...@googlegroups.com]
>> 代表 Marc Walther
>> 发送时间: 2014年10月22日 22:48
>> 收件人: ogs-...@googlegroups.com; ogs-...@googlegroups.com

>> 主题: Re: Open boundary condition
>>

>> an email to ogs-devs+u...@googlegroups.com.