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Boundary Conditions while using Symmetry planes

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Old   March 17, 2011, 20:43
Default Boundary Conditions while using Symmetry planes
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Gary
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Hi all,
I am using symmetry planes in the geometry. From what I understand, if I'm designing a quarter section of the equipment, the inlet mass flow rates will also be quarter of that of the equipment as a whole. However, will the same condition be applied to the outlet pressure? I am using an outlet pressure of 17 kPa (outlet pressure for the whole equipment), so should I use 1/4th the outlet pressure for the quarter section?
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Old   March 18, 2011, 03:37
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Lance
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Pressure is an intensive property and does not depend on the system size, unlike mass which is a extensive property.

So, no, you should set 17 kPa at your outlet.

http://en.wikipedia.org/wiki/Intensi...ive_properties
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Old   March 18, 2011, 20:22
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Thanks a lot for the information.
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