General Extrusion
A General Extrusion coupling operator () maps an expression defined on a source to an expression that can be evaluated on any destination geometry where the destination map expressions are valid. Compared to the linear extrusion, these operators define a more general, possibly nonlinear, relation between source and destination. Specifically, when the destination has more space dimensions than the source, the operator performs extrusion of values. The default Operator name is genext1.
Go to Common Settings for Nonlocal Couplings for information about the Operator Name, Source Selection, Source, and Advanced sections.
Destination Map
Specify the general extrusion destination map by entering an expression in the x-expression, y-expression, and z-expression fields. This maps each point in the destination to a point in the intermediate mesh, where the argument of the extrusion operator is evaluated. A general extrusion operator can be evaluated at any point where the destination map expressions are defined.
The number of destination map expressions is the same as the space dimension of the intermediate mesh. For example, if the intermediate mesh is in 2D space, there is no z-expression field. Also, depending on the dimension of the coupling, you can leave the y-expression field in the source and destination maps empty for a 1D map in a 2D model component, for example.
If you have the:
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Acoustics Module, see Flow Duct: Application Library path Acoustics_Module/Aeroacoustics_and_Noise/flow_duct.
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Chemical Reaction Engineering Module, see Packed Bed Reactor: Application Library path Chemical_Reaction_Engineering_Module/Reactors_with_Porous_Catalysts/packed_bed_reactor.
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Geomechanics Module, see Concrete Beam With Reinforcement Bars: Application Library path Geomechanics_Module/Tutorials/concrete_beam.
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Subsurface Flow Module, see Aquifer Characterization: Application Library path Subsurface_Flow_Module/Fluid_Flow/aquifer_characterization.