overflow error in linear solution

tsh850227 · March 27, 2017, 06:53

hi all,

I am doing a gas-liquid modeling in a stirring tanks and now suffered overflow error in linear solution. When simulation was setup with segrated for volume fraction solver, it could be executed, but diverged after several iteration. with coupled solver, simulation always crashed with overflow error in linear solution. I have tried different initial conditions, boundary conditions and timesteps but no effect.

so can anybody help?

many thanks

shuai

ghorrocks · March 27, 2017, 08:13

FAQ: https://www.cfd-online.com/Wiki/Ansy...do_about_it.3F

March 27, 2017, 06:53	overflow error in linear solution	#1
tsh850227 Member Join Date: Jan 2012 Posts: 30 Rep Power: 14	hi all, I am doing a gas-liquid modeling in a stirring tanks and now suffered overflow error in linear solution. When simulation was setup with segrated for volume fraction solver, it could be executed, but diverged after several iteration. with coupled solver, simulation always crashed with overflow error in linear solution. I have tried different initial conditions, boundary conditions and timesteps but no effect. so can anybody help? many thanks shuai

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March 27, 2017, 08:13		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	FAQ: https://www.cfd-online.com/Wiki/Ansy...do_about_it.3F