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For meshed domain, select boundaries where you want to insert boundary layer elements. Right-click in the Graphics window to open up The Graphics Context Menu and click the Boundary Layers button (). This adds a node with the same name, as well as a default Boundary Layer Properties node and at the same time inserts boundary layer elements for the selected boundaries, with the meshed domains adjacent to the selected boundaries as domain selection.
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For meshed faces in 3D, select the edges where you want to insert boundary layer elements. Right-click in the Graphics window to open up the Graphics context menu and click the Boundary Layers button (). This adds a node with the same name, as well as a default Boundary Layer Properties node and at the same time inserts boundary layer elements for the selected edges, with the meshed boundaries adjacent to the selected edges as boundary selection. Adjacent domains must be unmeshed.
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In the Graphics window, select the boundaries where you want to insert boundary layer elements. On The Mesh Toolbar click the Boundary Layers button ().
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In the Mesh ribbon toolbar (Windows) or from the Mesh contextual toolbar (macOS and Linux), click the Boundary Layers button ().
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Choose Entire geometry to specify boundary layer mesh for the entire geometry.
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Choose Domain to specify the domains for which you want a boundary layer mesh. Choose Manual in the Selection list to select the domains in the Graphics window or choose All domains to select all domains.
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Choose Boundary (available in 3D only) to select boundaries for which to generate a boundary layer mesh along its edges. Choose Manual in the Selection list to select the boundaries in the Graphics window or choose All boundaries to select all boundaries. Use a Swept operation to sweep the face mesh in adjacent domains to create a volumetric boundary layer mesh.
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Select Splitting (the default) to introduce boundary layer splits at sharp corners. In the Minimum angle for splitting field you specify the minimum angle between adjacent boundary layer boundaries for a split to occur. Control the maximum angle of the elements in the split region by the Maximum angle per split parameter.
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Select Trimming to trim the boundary layer mesh at sharp corners. In the Minimum angle for trimming and in the Maximum angle for trimming fields you specify the minimum angle and maximum angle, respectively, between adjacent boundary layer boundaries for trimming to occur.
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Select None to not use any special treatment at sharp corners.
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