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How to calculate slosh force by integration of pressure over a wetted area ?

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Old   October 2, 2017, 06:04
Default How to calculate slosh force by integration of pressure over a wetted area ?
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Izil
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Hi all
I want to simulate liquid slosh in a cylindrical half-filled tank subjected to external acceleration excitation and I need to calculate slosh forces and moments. I have a 2-phase (water + air) model using VOF approach and I need to calculate forces by integration of pressure over the wetted area of the tank wall. Can anybody help me with this calculation? I mean how can I set fluent to calculate this? Do I need to use a UDF for it and if any UDF is needed what is the appropriate macro?
Kindly help
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Old   May 30, 2018, 04:28
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Originally Posted by Izil View Post
Hi all

I want to simulate liquid slosh in a cylindrical half-filled tank subjected to external acceleration excitation and I need to calculate slosh forces and moments. I have a 2-phase (water + air) model using VOF approach and I need to calculate forces by integration of pressure over the wetted area of the tank wall. Can anybody help me with this calculation? I mean how can I set fluent to calculate this? Do I need to use a UDF for it and if any UDF is needed what is the appropriate macro?

Kindly help


Hi.
Use UDS
If you donít know i can give you,....
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Old   May 31, 2018, 19:28
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Originally Posted by tafresh.university View Post
Hi.
Use UDS
If you donít know i can give you,....
Hello,

Thank you.
I found 2 ways to calculate forces and moments:
1- Using an " execute at the end" macro.
2.Using Lift( or Drag) and Moment monitoring.

Would you please explain how to use UDS? Or, If you know a better way please tell me.

Best,
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