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how to define a region with specific gas

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Old   April 9, 2016, 03:54
Default how to define a region with specific gas
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Hi friends. I am working on a project about combustion in a box-a DNS study.Since I am a freshman with OF, I come across many problems. One of my problems is how to define a region with specific gas like n-heptane, I want a spherical region in my box, which is filled with n-heptane. However, I don't know how to achieve it.
Many thanks in advance.
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Old   April 15, 2016, 06:12
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Pierluigi Olmati
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Are you using XiFoam?
I would like to know as well how define a gas region in an air domain containing a gas region.

PO
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Old   April 15, 2016, 11:18
Default setfields utility
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Quote:
Originally Posted by Pier84 View Post
Are you using XiFoam?
I would like to know as well how define a gas region in an air domain containing a gas region.

PO
Hi PO,
I am using reactingFoam instead of XiFoam. And I hava define a region with different gas with setfields utility. You can learn about damBreak for a example, which is in the tutorial-multiphase-interFoam.

SH
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Old   April 18, 2016, 00:34
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Pierluigi Olmati
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Quote:
Originally Posted by SH_Zhong View Post
Hi PO,
I am using reactingFoam instead of XiFoam. And I hava define a region with different gas with setfields utility. You can learn about damBreak for a example, which is in the tutorial-multiphase-interFoam.

SH
Hi Zhong,

Thank you for the suggestion.
I used the utility "setFields" as in the damBreak example. I think I miss something because XiFoam does not read the defined gas region.

Please give more about using setFields for defining a gas region. I used setFields for mapping Su for example (e.g. Su=0 outside the gas region) but it does not work.

Thanks,
PO

Last edited by Pier84; April 19, 2016 at 01:16.
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