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Different moment between Fluent and CFD post

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Old   January 27, 2017, 10:54
Question Different moment between Fluent and CFD post
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I am running simulations on a rushton turbine at Re=200. In this regime, the Power number should be Po~3.5. Po is calculated from the torque obtained in the simulation. However, when I calculate the torque (moment) on the impeller in fluent, the value is off, resulting in Po~6. When I calculate torque on the impeller in CFD post, I do in fact get the right value, resulting in Po~3.5. Does anyone know what can cause this difference, because I would expect both outcomes to be the same. Any comment would be appreciated.

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Old   July 7, 2021, 12:51
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Hi Falldox

I experienced the same problem, getting values in CFD Post of something about 60% of the values in Fluent. After some look I noticed that in Fluent I was evaluating the variable Moment Coefficient and not the variable Moment. After this correction I got similar values.
This could be your case.
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cfd post, fluent, moment, torque

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