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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Volume Fraction too Low. How to Improve? › Reply To: Volume Fraction too Low. How to Improve?

August 6, 2024 at 9:02 am
Rob
Forum Moderator

The surface HTC will suffer where you have phase change, so use some care. Also check, I think the boundary flux is relative to 298.15K and is hard coded. Don't use CFD Post, and always check the volume fraction when reporting velocity - if there's a 0.00001 VF you'll still see a velocity which is physically meaningless.Â