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Make EdgeList ’listName’ AllEdges
Make EdgeList ’listName’ SharpEdges
Make EdgeList ’listName’ UnmatchedEdges
The option ’AllEdges’ is used to generate a list of all edges of the quadrilateral mesh.
The option ’SharpEdges’ is used to generate a list of edges for which the attached faces
form an angle greater than 60 degrees. The option ’UnmatchedEdges’ is used to generate
a list of edges which are shared by a single face; note that if the surface is closed (e.g.
a hollow prism), all edges are ’matched’ and the generated edge list will be empty. The
list generated using the ’SharpEdges’ command includes unmatched edges.
9.2
Pressurized Quad Face List
These lists are used for applying pressure loadings on a set of quadrilateral faces. Several
loading types are available:
1. Uniform pressure loading
2. Variable pressure loading
3. Special loads
4. Patched pressure histories
The general syntax for these lists uses the format below. More details are given for each
specific loading tpye.
QuadFaceList ’listName’ ’loadingType’ {
. . .
}
9.2.1
Uniform Pressure
This list is used for prescribing a time-dependent uniform pressure history over a set of
quadrilateral faces. The pressure can be prescribed either using a ’LoadCurve’ tabulated
expression or using an ’Equation’. The latter is particularly useful when the pressures
depend on the change in volume affected by the motion of the faces themselves. The
single value time-dependent pressure is multiplied by the current area of each face in the
direction opposite to its normal.
TrngFaceList ’ListName’ UniformPressure {
// 1.) Specify face list (Req.), either a face list
//
or a shell list
Link FaceList ’listName’
Link ShellList ’listName’
// 2.) Specify either LoadCurve or Equation (Req.)
LoadCurve ’curveName’
Equation ’equationName’
}
}
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