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Transient periodic boundary condition setting |
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#1 |
New Member
jinzhuili
Join Date: Dec 2018
Posts: 4
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hi,
Now I am faced with this problem. I want to calculate the fully developed flow field in the circular pipe. In order to save resources, I use the flow periodic boundary condition.Because I cannot get the pulse of speed, my time step size has been set. I doubt that the periodic boundary can be used for transient calculation. I hope you can help me and tell me how to set it.Fluent is version 16.0. thank you. |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,728
Rep Power: 66 ![]() ![]() ![]() |
Periodic BC's can be used in transient calculation. Your doubts are completely unfounded.
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#3 | |
New Member
jinzhuili
Join Date: Dec 2018
Posts: 4
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Quote:
thank you |
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#4 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,728
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Fully developed pipe flow doesn't develop pulsatile behavior... why are you looking for it?
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#5 | |
New Member
jinzhuili
Join Date: Dec 2018
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Quote:
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#6 | |
New Member
jinzhuili
Join Date: Dec 2018
Posts: 4
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Quote:
velocity1.jpg The following is the periodic boundary condition that I set. setting.jpg Good man, can you tell me what I can do to get the transient velocity field? Thank you. |
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#7 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,728
Rep Power: 66 ![]() ![]() ![]() |
you need to be running transient LES
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Tags |
periodic boundary fluent, transient 3d |
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