Error: Divergence detected in AMG solver: epsilon

willisk15 · December 19, 2017, 14:37

Hello,
I am simulating sea water flowing through a perforated plate. I am using the VOF model, and the Reynolds Stress model (default options). I keep getting results that look like what's shown in the picture, and the error message is "Error: Divergence detected in AMG solver: epsilon". I've poured through many forum posts and fluent manuals, and I still can't figure out why this is happening. Thank you in advance! (Blue is air, red is water)

vasava · December 20, 2017, 02:06

Could you check where is this error occurring? Have you put any operating density, if not try that and see how it goes.

willisk15 · December 20, 2017, 15:42

I'm not sure what you mean by check where the error is occurring. I have the operating density set to that of air. I've already simulated the same case using the k-epsilon model, and I tried to use the same inputs to run the RSM case. Is this a bad idea? I've been trying to find resources that will help me set up the simulation using RSM, but still no luck

.

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December 20, 2017, 02:06		#2
vasava Senior Member Paritosh Vasava Join Date: Oct 2012 Location: Lappeenranta, Finland Posts: 732 Rep Power: 22	Could you check where is this error occurring? Have you put any operating density, if not try that and see how it goes.

December 20, 2017, 15:42		#3
willisk15 New Member William Foltz Join Date: Oct 2017 Posts: 6 Rep Power: 8	I'm not sure what you mean by check where the error is occurring. I have the operating density set to that of air. I've already simulated the same case using the k-epsilon model, and I tried to use the same inputs to run the RSM case. Is this a bad idea? I've been trying to find resources that will help me set up the simulation using RSM, but still no luck .