Propane jet fire heat transfer to empty steel horizontal vessel #14622
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Hello, i'm simulating a propane jetfire impiging on a horizontal steel vessel. Vessel is modeled as a collection of voxels 0.025m thick in x, z and long enough to cover the vessel lenght (see snip). Mesh is 0.05m in all directions. Vessel is supposed to be empty (air). I'm wondering what is the best "backing" boundary condition to represent the empty side of the vessel. Will it work correctly using the voxel approach?
Thank you, |
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Replies: 2 comments 2 replies
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Did you create your vessel such that it is hollow? If you did, then you don't need to do anything for the backside boundary condition. The vessel will be air filled in FDS and FDS will predicting the heating and pressurization of the air on the inside. If your vessel is solid, I'd make it hollow. |
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It's solid inside because of the voxel generated by Blender-FDS. I'll try void boundary condition and observe if any change from current configuration (back = exposed by default). tks |
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Can you generate a hollow shape by drawing a one grid cell wide strip running from end to end along the side and then rotating it? |
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Little update. I managed to create the hollow shape. Now doing some trials with different boundary conditions.
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Did you create your vessel such that it is hollow? If you did, then you don't need to do anything for the backside boundary condition. The vessel will be air filled in FDS and FDS will predicting the heating and pressurization of the air on the inside.
If your vessel is solid, I'd make it hollow.