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No convergence. Relative timestep too small. Double dogleg solver.

Posted Oct 15, 2012, 5:53 p.m. EDT Computational Fluid Dynamics (CFD), Studies & Solvers Version 4.3 1 Reply

Rui Silva
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Hello,

I am trying to use Double Dogleg Solver for a Navier-Stokes problem, and even tough the residuals in the convergence plot have reach 100% for the velocity and pressure segregated step, I get the "No convergence. Relative timestep too small" error.

The simulation is almost finished, just waiting on the turbulence segregated step.

I can seem to understand why! Does anyone have any insight on this?

Best Regards,

Rui
1 Reply Last Post Oct 16, 2012, 2:13 p.m. EDT
Rui Silva
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Posted: 1 decade ago Oct 16, 2012, 2:13 p.m. EDT
Anyone?

I have attached a pic of yhe convergence plot.

Hope anyone can shed some light on this behaviour.

Rui
Anyone? I have attached a pic of yhe convergence plot. Hope anyone can shed some light on this behaviour. Rui

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