BndLayer

Create a boundary layer mesh. Supported for domains in 2D and 3D as well as for faces in 3D. For imported meshes, the domains must contain a mesh. Use FreeTet to fill unmeshed domains before creating a boundary layer mesh.

model.component(<ctag>).mesh(<tag>).create(<ftag>,"BndLayer");

model.component(<ctag>).mesh(<tag>).feature(<ftag>).selection();

model.component(<ctag>).mesh(<tag>).feature(<ftag>).set(property,<value>);

model.component(<ctag>).mesh(<tag>).feature(<ftag>).getType(property);

model.component(<ctag>).mesh(<tag>).feature(<ftag>).create(<ftag1>,"BndLayerProp");

Use model.component(<ctag>).mesh(<tag>).create(<ftag>,"BndLayer") to create a boundary layer mesh in domains in 2D and 3D, and on faces in 3D.

Use model.component(<ctag>).mesh(<tag>).feature(<ftag>).selection() to specify the domain or boundary selection. If you do not specify the selection, the feature operates on all domains or on all boundaries depending on the selection dimension of the corresponding BndLayerProp attribute.

Use model.component(<ctag>).mesh(<tag>).feature(<ftag>).create(<ftag1>,"BndLayerProp") to add a BndLayerProp attribute feature defining the locations and properties of the boundary layers.

The feature reads properties from the BndLayerProp attribute feature.

The following properties are available:

Table 4-14: Available Properties for BndLayer
Property	Value	Default	Description
sharpcorners	none \| split \| trim	split	Specifies the handling of sharp corners in 2D and sharp edges in 3D.
layerdec	integer	2	Maximum difference in number of boundary layers between neighboring points on boundary layer boundaries. For all values of sharpcorners.
smoothtransition	on \| off	on	Specifies if the operation smooths the transition to interior mesh.
splitangle	double	240[deg]	Minimum angle between boundary layer boundaries to introduce a boundary layer split. When sharpcorners is split.
splitdivangle	double	100[deg]	Maximum angle per split. When sharpcorners is split.
trimmaxangle	double	50[deg]	Maximum angle for boundary layer trimming in narrow corners. For all values of sharpcorners.
trimminangle	double	240[deg]	Minimum angle between boundary layer boundaries for boundary layer trimming. When sharpcorners is trim.
smoothmaxiter	integer	4	Specifies the number of smoothing iterations. When smoothtransition is on.
smoothmaxdepth	integer	6	Specifies the maximum element smoothing depth. When smoothtransition is on.

Insert boundary layers to an existing mesh containing both quadrilateral elements and triangular elements.

Code for Use with Java

Model model = ModelUtil.create("Model");

model.component().create("comp1");

GeomSequence g = model.component("comp1").geom().create("geom1", 2);

MeshSequence m = model.component("comp1").mesh().create("mesh1", "geom1");

g.create("sq1", "Square");

g.create("sq2", "Square");

g.feature("sq2").setIndex("pos", "1", 0);

g.create("c1", "Circle");

g.feature("c1").set("r", "0.2");

g.feature("c1").setIndex("pos", "1.5", 0);

g.feature("c1").setIndex("pos", "0.5", 1);

g.create("co1", "Compose");

g.feature("co1").selection("input").init().set(new String[]{"c1", "sq1", "sq2"});

g.feature("co1").set("formula", "sq1+sq2-c1");

m.create("map1", "Map");

m.feature("map1").selection().geom("geom1", 2);

m.feature("map1").selection().set(new int[]{1});

m.create("ftri1", "FreeTri");

m.create("bl1", "BndLayer");

m.feature("bl1").create("blp", "BndLayerProp");

m.feature("bl1").feature("blp").selection().set(new int[]{2, 3, 5, 6, 8, 9, 10, 11});

Code for Use with MATLAB

model = ModelUtil.create('Model');

model.component.create('comp1');

g = model.component('comp1').geom.create('geom1', 2);

m = model.component('comp1').mesh.create('mesh1', 'geom1');

g.create('sq1', 'Square');

g.create('sq2', 'Square');

g.feature('sq2').setIndex('pos', '1', 0);

g.create('c1', 'Circle');

g.feature('c1').set('r', '0.2');

g.feature('c1').setIndex('pos', '1.5', 0);

g.feature('c1').setIndex('pos', '0.5', 1);

g.create('co1', 'Compose');

g.feature('co1').selection('input').init.set({'c1', 'sq1', 'sq2'});

g.feature('co1').set('formula', 'sq1+sq2-c1');

m.create('map1', 'Map');

m.feature('map1').selection.geom('geom1', 2);

m.feature('map1').selection.set(1);

m.create('ftri1', 'FreeTri');

m.create('bl1', 'BndLayer');

m.feature('bl1').create('blp', 'BndLayerProp');

m.feature('bl1').feature('blp').selection.set([2, 3, 5, 6, 8, 9, 10, 11]);

Create a boundary layer mesh consisting of prism elements along the boundary layer boundaries and tetrahedral elements in the interior:

Code for Use with Java

Model model = ModelUtil.create("Model");

model.component().create("comp1");

GeomSequence g = model.component("comp1").geom().create("geom1", 3);

MeshSequence m = model.component("comp1").mesh().create("mesh1", "geom1");

g.create("blk1", "Block");

g.feature("blk1").setIndex("size", "10", 0);

g.feature("blk1").setIndex("size", "5", 1);

g.feature("blk1").setIndex("size", "5", 2);

g.create("sph1", "Sphere");

g.feature("sph1").setIndex("pos", "3", 0);

g.feature("sph1").setIndex("pos", "2.5", 1);

g.feature("sph1").setIndex("pos", "2.5", 2);

g.create("dif1", "Difference");

g.feature("dif1").selection("input").init().set(new String[]{"blk1"});

g.feature("dif1").selection("input2").init().set(new String[]{"sph1"});

m.create("ftet1", "FreeTet");

m.create("bl1", "BndLayer");

m.feature("bl1").create("blp", "BndLayerProp");

m.feature("bl1").feature("blp").selection().

set(new int[]{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13});

Code for Use with MATLAB

model = ModelUtil.create('Model');

model.component.create('comp1');

g = model.component('comp1').geom.create('geom1', 3);

m = model.component('comp1').mesh.create('mesh1', 'geom1');

g.create('blk1', 'Block');

g.feature('blk1').setIndex('size', '10', 0);

g.feature('blk1').setIndex('size', '5', 1);

g.feature('blk1').setIndex('size', '5', 2);

g.create('sph1', 'Sphere');

g.feature('sph1').setIndex('pos', '3', 0);

g.feature('sph1').setIndex('pos', '2.5', 1);

g.feature('sph1').setIndex('pos', '2.5', 2);

g.create('dif1', 'Difference');

g.feature('dif1').selection('input').init.set({'blk1'});

g.feature('dif1').selection('input2').init.set({'sph1'});

m.create('ftet1', 'FreeTet');

m.create('bl1', 'BndLayer');

m.feature('bl1').create('blp', 'BndLayerProp');

m.feature('bl1').feature('blp').selection.set(2:13);

BndLayerProp, Map, Sweep