Diffraction dialog box

This simulation object lets you define diffractions to account for the spreading of rays.

Type
Type	Specifies the type of the diffraction that you can apply on element edges or faces of acoustic fluid elements.Diffraction EdgesDefines diffraction on a continuous edge.Diffraction SurfaceDefines diffraction on a continuous surface.
Name
Name	Specifies the name of the diffraction simulation object.
Description	Specifies the description for the diffraction simulation object.
Destination Folder
Simulation Object Container	Specifies the folder in the Simulation Navigator in which to store the new diffraction simulation object.The list includes the root container and folders that you created using the New Folder command in the Simulation Object Container.
Folder Manager	Displays a hierarchical list of folders.To create a new folder, right-click any level of the hierarchy and choose New Folder.
Free edges****Surface
Defines the support for the diffractions.
Edges to put diffraction on	Lets you select edges of 2D fluid elements for the diffraction.
Elements to put diffraction on	Lets you select faces of 2D fluid elements for the diffraction.
Group Reference	Lets you select the groups of free edges or faces of fluid elements to apply diffractions.For more information, see Group Reference options.
Select Object	Appears when the Group Reference check box is selected.Lets you select the FE entities on which to apply the diffractions.Excluded:Lets you remove individual entities from within the selected object.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Options
Diffraction Type	Specifies where the diffraction occurs.ForwardDefines diffraction on element edges or faces of acoustic fluid elements only in the forward zone.Shadow onlyDefines that the diffraction occurs only in the shadow of the selection.EverywhereDefines that the diffraction occurs on the entire diffraction cone.
Diffraction on Dihedron's	Lets you specify on which dihedron side the software computes the diffraction.Exterior AngleDefines computation on the side that corresponds with the exterior dihedral angle.Interior AngleDefines computation on the side that corresponds with the interior dihedral angle.Both AnglesDefines computation on both dihedron sides.

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Diffraction dialog box, Simcenter 3D 2021.1 Series

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