Convergence of Residuals

Aashi171185 · April 29, 2020, 04:35

Hello to everyone. I am performing sloshing analysis on a cylindrical tank on which I have applied displacement sinusoidal loading but when I ran the solution my residuals come up as shown below I want to know is this reliable solution as only RMS v mom bulk residual diverges after 250 timesteps then converge. is this converged solution or not? my convergence criteria were 1e-04

duri · April 29, 2020, 13:28

Since this is unsteady convergence need to be checked for each time step. Residual jump at the beginning of each time step is expected as unsteadiness is created by motion.

Aashi171185 · May 1, 2020, 16:05

Thanks for your valuable comments duri

May 1, 2020, 16:05	Thanks	#3
Aashi171185 Member Aashi Join Date: Dec 2018 Posts: 43 Rep Power: 7	Thanks for your valuable comments duri

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April 29, 2020, 13:28		#2
duri Senior Member duri Join Date: May 2010 Posts: 245 Rep Power: 16	Since this is unsteady convergence need to be checked for each time step. Residual jump at the beginning of each time step is expected as unsteadiness is created by motion.