This model is mainly used in fluent.
Simulated liquid-liquid two-phase displacement flow.
Size 10m*20m*10mm thin plate channel. Each side of 10m*20m has a hemispherical cavity.
Hemispherical cavity diameter 3m
One liquid enters from the 10m*10mm face and exits the other.
1. Does the entrance and exit need to be refined? (No refinement at 20 meters)
2. 10 meters, 10 mm edges need to be refined. Should y + be considered? What is the distance from the first node to the 20m edge of the 10m edge?
3. Is mesh refinement necessary at the contact between the thin plate and the hemispherical cavity?
4. If you need refinement in 3, there will be four tangents at the round mouth of the hemispherical cavity. These four tangential expansions will also bring refined gridlines. Will this lead to errors?
I uploaded my model, thank you。