January 9, 2019 at 12:20 pmMohsenhivaSubscriber
I have a simple problem that must be solved easily but I wasn't able to solve it! I have two separated phases of air and water in an air vessel. I want to create a flow in the main pipeline below the air vessel. The project is two=phase transient based. The inlet boundary is velocity inlet and the outlet is a pressure outlet. I don't want to enter air at the inlet. But when I simulate I see the air intrusion from inlet as you see in t=0.5 s in attached images. Can anyone help me to solve this? I tried several thing like punch and defining different zones, but didn't work. Any suggestion? I only want to have water in the pipeline.
Thanks a lot.
January 9, 2019 at 12:20 pmDrAmineAnsys Employee
Creating a dedicated thread for your question.
January 9, 2019 at 12:24 pmDrAmineAnsys Employee
So do you mean that air is entering from the "velocity-inlet" bottom-left but it should not?
Can you insert screenshot of your phase definitions as well as the velocity inlet settings for liquid and air (multiphase tab in the boundary is important here)?
January 9, 2019 at 1:56 pm
January 9, 2019 at 2:01 pmDrAmineAnsys Employee
So in your case you have water as secondary phase. Which value for volume fraction are you giving at the Velocity-Inlet? Please screenshot.
January 9, 2019 at 3:53 pm
January 9, 2019 at 4:15 pm
January 9, 2019 at 4:23 pmDrAmineAnsys Employee
Please create a new thread for dynamic mesh suggestions. But what I can say is that is okay (as I do not know the motivation). I guess you do not need to have deforming for the zone itself if you do not want to alter the global settings but it is not important.
January 9, 2019 at 4:56 pmMohsenhivaSubscriber
Thanks a lot for your kind response and help.
January 10, 2019 at 8:43 pm
January 11, 2019 at 10:42 amMohsenhivaSubscriberYes it is. A new thread is opened for dynamic mesh discussion for check valve in this model. You may be interested to see:
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