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Two different methods for modeling a rotatory system |
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January 16, 2012, 02:37 |
Two different methods for modeling a rotatory system
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#1 |
New Member
Nav
Join Date: Jan 2012
Posts: 7
Rep Power: 14 |
There are two possible methods for modeling a rotatory system (such as a water turbine),
1) using a moving mesh 2) fixing the blades, and rotating the housing employing an angular velocity boundary condition. (fixed grid) It is clear that the second approach is much easier to implement. I wonder to know their differences? Do they both result in similar results? Thank you very much, Last edited by nav; January 17, 2012 at 01:51. |
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January 18, 2012, 11:33 |
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#2 |
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Join Date: Jul 2011
Location: US
Posts: 39
Rep Power: 14 |
Actually, if you are modelling an internal flow, you need both. You need to rotate the whole mesh (the rotor turning) and then apply a reverse rotation to the boundary (since the wall should be static). Otherwise the system will look static from the fluids point of view.
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