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Units of force calculated in a 2-D case

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Old   February 9, 2015, 21:12
Default Units of force calculated in a 2-D case
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Pruthvi
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Hello people. I'm trying to validate a plunging airfoil using pimpleDyMFoam. I got some results for a 2-D simulation with an empty front and back BC. I want to know if the units of the force calculated are in Newtons or in Newtons/meter. How can I find out about the units?

I also want to know if there are any general guidelines for choosing the domain size when running external flow simulations. How far should the airfoil/bluff-body be from the inlet and the outlet? How far from the top and bottom. Consider that stroke amplitude of the oscillating airfoil is 'A' and the maximum wake size is 'W' .

I'm looking forward for your answers.
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