Dear all I am simulating an adverse pressure gradient problem using the navier-stokes solver. I started the computation at p=2 and progressively increased to p=5. At p=5, I encounter an error associated with the time step calculation. The original setup with scheme=rk45, controller=pi, errest-norm…

If you are running p5, then you will have 6 solution points in each direction in a hex. Thus you probably want 7 quadrature points in each direction in a hex. Hence you want to set quad-deg for a hex to 13. You should also change quad-deg for the prisms, and the quad and tri faces, accordingly.

Error associated with time step

General

p.vincent 7 December 2021 12:42 6

So quad-deg for p5 hexes is set to 10? And I assume you are using GL points? If so then I think you will have less quadrature points than solution points (or maybe the same number). Which would explain what you are seeing.

Errors on mesh with pyramid elements

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Error associated with time step

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