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Old   November 25, 2015, 08:24
Default Testing Coriolis Forces
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John Anonymous
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Is there any standardize test for Coriolis force in a Eulerian implementation? Since this isn't a Lagrangian code there is no tracking of fluid particles. Right now I am thinking about periodic boundary conditions and setting the entire box to constant density with an initial velocity and watching the entire box evolve. Thankfully since the force is only dependent on velocity and the box's orbital frequency, the medium should evolve homogeneously.

It would be nice to track an individual particle instead of just the velocity evolution of the entire box. If I created an over density, on the static background density, with a velocity it would be almost analogous. There are some obvious problems with that which make me unsure if it would be a clean test.

If there is a better test, perhaps more standardized, I would like to check that. Thanks
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Old   November 25, 2015, 08:36
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Quote:
Originally Posted by NoviceC View Post
Is there any standardize test for Coriolis force in a Eulerian implementation? Since this isn't a Lagrangian code there is no tracking of fluid particles. Right now I am thinking about periodic boundary conditions and setting the entire box to constant density with an initial velocity and watching the entire box evolve. Thankfully since the force is only dependent on velocity and the box's orbital frequency, the medium should evolve homogeneously.

It would be nice to track an individual particle instead of just the velocity evolution of the entire box. If I created an over density, on the static background density, with a velocity it would be almost analogous. There are some obvious problems with that which make me unsure if it would be a clean test.

If there is a better test, perhaps more standardized, I would like to check that. Thanks

http://www.eng.fau.edu/directory/fac...pdf/ekman2.pdf
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Old   November 26, 2015, 08:15
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Consider also:

http://dx.doi.org/10.1017/jfm.2011.303
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