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Positive Displacement Meter Testing

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Old   March 11, 2015, 06:30
Default Positive Displacement Meter Testing
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Gavin
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Hello all,

I am a beginner in the use of Ansys but the project I am working on requires me to model and test a range of different PD meter designs. I have been bashing my way through as many tutorials as I can find but I am still unsure if the software can do what I want it to do.

I need to create mechanisms similar to this - http://encyclopedia.che.engin.umich....nt/ova-gen.JPG

What I want is for the flow to drive the mechanism. The thing I have found that seems closest to this is the Immersed Solids method but from what I have read the solids need to have a movement condition applied and the flow gets set to match the throughput of the mechanism which is no good for me. One of the main reasons for this is that I want to be able to measure the amount of leakage through the mechanism I may get under certain conditions such as differing tolerances of parts and differing fluid viscosities.

So if anyone has any thoughts I would be most appreciative
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Old   March 11, 2015, 06:40
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Maybe this can be helpful ?!?
https://www.youtube.com/watch?v=NCrtWr74f4c
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Old   March 12, 2015, 06:23
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Quote:
Originally Posted by monkey1 View Post
Maybe this can be helpful ?!?
https://www.youtube.com/watch?v=NCrtWr74f4c
Hi Monkey1,

Thanks for your response, it is an interesting video tutorial but it is still the gears affecting the fluid rather than a fluid flow affecting the gear motion.
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Old   March 12, 2015, 07:50
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You then combine the immersed solids with the rigid body solver and the flow can drive the rotors. Have a look at the other rigid body motion examples. You are going to have to combine aspects of a few examples to do your model.
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Old   March 13, 2015, 07:05
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Originally Posted by ghorrocks View Post
You then combine the immersed solids with the rigid body solver and the flow can drive the rotors. Have a look at the other rigid body motion examples. You are going to have to combine aspects of a few examples to do your model.
Aha! I get it now... I think So much still to learn.
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