April 29, 2022 at 3:11 pmmanelaero2020Subscriber
I am using fluent 2019 r2, the option 'prevent reverse flow' doesn't exist in this version.
My questions :
1- How to fix reverse flow using fluent 2019 r2?
2- I have read such solutions as refining mesh at the outlet/using coupled solver / extending the outlet furthermore (not possible for me) / and decreasing under relaxation factor
I have decreased under relaxation factor of pressure and momentum to 0.4 and of turbulence to 0.7
But I don't have an idea if this solution can affect solution accuracy; do you have an idea if this can affect solution accuracy please :)?
thank you a lot
all my kind regardsApril 29, 2022 at 4:05 pmRobForum ModeratorYou identify why it's happening and work from there. The flag to prevent reverse flow shouldn't really be used without understanding the flow as you might be forcing a non-physical result.
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