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Geometry
Geometry (Artery without plaques) (Link)
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Geometry (Plaque configuration #1)
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 FLUENT - Turbulent Pipe Flow - Step 3;(Link)
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Mesh
Some of the settings you can use to get a better mesh is shown in the figure below.
- The Relevance Center can be set to coarse, medium and fine. After you pick the Relevance Center, you can change the Relevance from -100 to 100, with 100 being the finest within the particular relevance center.
You can insert a sizing for faces and edges along with the mesh settings in the figure.
You can give a bias to edge sizing to cluster cells towards one end of edge. See this page for how to implement a bias to an edge.
Below is a mesh we obtained by playing with these settings. This mesh resolves the separated flow behind the plaque better than the default mesh. It can be further improved though!
