CIBC:Documentation:SCIRun:Reference:ModelCreation:BuildFEMatrix
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BuildFEMatrix
Information
- Package: ModelCreation
- Catagory: FiniteElements
- Author(s): Jeroen Stinstra
- Status: Supported in latest version
- Version: 3.0
Description
Summary
This module builds the Finite Element Method stiffness matrix.
Detailed Description
Module Description
This module builds the Finite Element Stiffness matrix for a certain field. It will assume the data on the field will describe the conductivity of the medium. Currently there are two ways of specifying a conductivity for a domain. One can use the values assigned to the field as scalar isotropic conductivities or as tensor anisotropic ocnductivities. The second method is to attach a conductivity table to the module. In this case the values in the field are assumed to be indices into the conductivity table. The conductivity table is a m by 6 matrix or an m by 9 matrix depending on how many coefficients of the symmetric tensor are given. Note that in case 9 are given, three values will not be used as they have to be symmetric entries. The ordering for the table using 6 values is, xx, xy, xz, yy, zy, and zz. The module is also able use a different node ordering in the computational space. For a different ordering in the computational space, one should add a GeomToComp mapping matrix (From Geometrical mesh to Computational grid). This mapping matrix describes how the geometrical space is mapped into the comptutational space. If no mapping is given the node ordering in the input field is used.
Frequently Asked Questions
Known Bugs
Recent Changes
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