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UDS value at outlet

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Old   September 4, 2019, 15:44
Default UDS value at outlet
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Renan Kops
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Hello all,


I am currently working with two UDS along a flow. The outlet boundary condition is set as an outflow with a flow rate weighting of 1. The flow speed is 0.2 cm/s from left to right



The problem i am having is the following:


If i set the outlet boundary condition of the UDS to be a specified value with a value of 0, i get the following result at the outlet:



If i set the outlet boundary condition of the UDS to be a Specified Flux with a value of 0, i get the following result:



It seems that the variables are not being transported along the boundary, and the boundary is acting as a barrier.
How can i set my outlet such that the UDS is transported out of the domain with the flow?


Edit: I am running the case on Fluent 19.0.

I had the opportunity to check the case on Fluent 16 and this problem does not occur on the older version of the program. Any ideas on how to fix this?



Thank you.
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Old   September 6, 2019, 13:28
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Renan Kops
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Just had to redefine the boundary condition, apparently the program got this behavior because the case file was from fluent 16.
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