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January 9, 2019, 16:26 |
Convergence in CompoundMesh with CyclicAMI
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#1 |
New Member
Brent Shambaugh
Join Date: Nov 2018
Posts: 8
Rep Power: 7 |
I am still confused what cyclicAMI means, or why my model does not converge (see tips here
SimpleFoam convergence problems ) I use it for a compound mesh : " Periodic (Cyclic) boundary conditions are very strong tool in CFD. Meshes of different elements can be inter-connected. The boundaries have to be of equal shape and equal area. The transformation can be rotational, translational or noOrdering. " https://www.cfdsupport.com/OpenFOAM-...t/node115.html I would guess Cyclic Boundary Conditions are just: https://en.wikipedia.org/wiki/Period...ary_conditions The use of the boundary condition at the interface of the angled mesh and the rectangular mesh seems okay. I am able to get convergence here: https://www.youtube.com/watch?v=b00-xI-l0YE If I decrease the kinematic viscosity by 4 orders of magnitude from 0.2 to 2e-5 I am unable to find inputs in my fvSolutions file that lead to convergence. My complete exploration from Meshing to the present modelling is available here: https://www.youtube.com/playlist?lis..._W7ozcZV_4-JBA |
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January 10, 2019, 21:51 |
varying only p and U residuals success
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#2 |
New Member
Brent Shambaugh
Join Date: Nov 2018
Posts: 8
Rep Power: 7 |
I am having success with varying only p and U residuals for the kappa-epsilon model.
SimpleFoam convergence problems |
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