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Forum: OpenFOAM Programming & Development

June 27, 2018, 09:06

Replies: 8

Understanding the Marshak boundary condition (radiation)

Views: 10,787

Posted By chriss85

Hello, I replied to the other thread, I hope...

Hello,

I replied to the other thread, I hope this helps somewhat.

Forum: OpenFOAM Programming & Development

December 16, 2014, 08:38

Replies: 8

Understanding the Marshak boundary condition (radiation)

Views: 10,787

Posted By chriss85

But a wavelength-dependent emissivity still is...

But a wavelength-dependent emissivity still is dimensionless, as it's not a density like a spectral intensity for example.

Also, the emissivity in radiationProperties is used in two different...

Forum: OpenFOAM Programming & Development

May 26, 2014, 04:25

Replies: 8

Understanding the Marshak boundary condition (radiation)

Views: 10,787

Posted By chriss85

Thanks, I think it's clear now how the formula...

Thanks, I think it's clear now how the formula translates to the implementation.
I would also agree with you that the emissivity at the surface should be in [0 .. 1].
Since the opaqueSolid...

Forum: OpenFOAM Programming & Development

May 14, 2014, 07:18

Replies: 8

Understanding the Marshak boundary condition (radiation)

Views: 10,787

Posted By chriss85

Understanding the Marshak boundary condition (radiation)

I'm currently working on implementing a non-gray P1 model. This also requires me to modify the Marshak BC.

The problem is that I don't quite understand how it works.
I know that the radiative...

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