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Convergence Problem

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Old   March 31, 2015, 03:53
Default Convergence Problem
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Agung
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Dear all,

hey, i have a problem with my project about gas lift injection. My solution cant converged, the residual is increase. I decreased the under relaxation factor (especially for momentum value) after i realized the residual is increased. I also monitor the inlet static pressure, and it seems to be good. My solution is like the below picture, so, my question is, is it okay or not?

http://postimg.org/image/dgy6iygrr/
http://postimg.org/image/iivzck3xl/


I will very appreciate any comment from you guys

Thanks and best regards
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Old   March 31, 2015, 23:48
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Lucky Tran
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Looks reasonable, as long as you didn't set the urf's to very small values. I would try to return the urf's back to the defaults to see if has any affect.
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Old   April 4, 2015, 00:06
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Agung
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Thank you sir, i have increased the URF and nothing happens with the surface monitor, i think the solution has converged. Thanks for you help
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