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February 5, 2015, 08:30 |
nozzle in fluent
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#1 |
New Member
FC
Join Date: Dec 2014
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Hi,
I'm simulating a convegent divergent nozzle in fluent with air. I've noticed that the AreaAvarage pressure in inlet changes when I change the dimensions of the nozzle, even if I set as BC ambient pressure inlet; why does that happen? Otherwise I'm searching for the minor pressure drops from inlet to outlet, and I don't undestand why pressure drops seems that have more than one minimum value if I modify the length of the nozzle without changing the angles, but in theory pressure drops should be linear. Does anyone know what I'm probably missing? thank you very much. |
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February 8, 2015, 05:18 |
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#2 | |
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sudhir
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Location: india
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Quote:
Area Average concept is based on surface area...please check fluent documentation. |
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February 8, 2015, 05:34 |
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#3 |
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FC
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February 8, 2015, 05:41 |
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#4 | |
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sudhir
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Quote:
The area-weighted average of a quantity is computed by dividing the summation of the product of the selected field variable and facet area by the total area of the surface.. check this link http://aerojet.engr.ucdavis.edu/flue...g/node1199.htm sudhir |
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February 8, 2015, 06:03 |
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#5 | |
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FC
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Quote:
Thank you for your help. |
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February 8, 2015, 06:15 |
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#6 |
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sudhir
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Node or mass weighted average would be a better choice in my opinion. Hope it helps..
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February 8, 2015, 06:22 |
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#7 |
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February 14, 2015, 00:28 |
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#8 |
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sudhir
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