Free Convection Coupling options

Name
Name	Lets you specify a name for the simulation object.Description opens an editor that lets you type a description for the constraint.
Destination Folder
Simulation Object Container	Specifies the folder in the Simulation Navigator in which the boundary condition will be stored. The list includes the root container and existing folders that you created using the New Folder command. Examples of a root container include Load Container, Constraint Container, and Simulation Object Container.
Folder Manager	Displays a hierarchical listing of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder.
Convecting Region
Group Reference	Lets you apply the convective region to a group.For more information, see Group Reference options.
Select Object	Lets you select the convective set of elements.Element Selection Filtering lets you limit your element selection to the FE entity you select from the Filter Type list:0D Elements, 1D Elements, or 2D Elements lets you select only elements of that order.Element Edges lets you select 1D elements, the edges of 2D, or 3D elements.Element Faces lets you select 2D elements or the faces of 3D elements.Caution: You must select Element from the main selection Type Filter list to use the Element Selection Filtering options.Excluded lets you remove individual entities from within your 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.
Fluid Ducts
Group Reference	Lets you apply the fluid ducts to a group.For more information, see Group Reference options.
Select Object	Lets you select the fluid duct set of elements.Excluded lets you remove individual entities from within your 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.
Parameters
Correlation	Specifies how the software models the convection.Inclined PlateModels natural convection from any non-horizontal plate.Horizontal PlateModels natural convection from any horizontal plate.SphereModels natural convection on the outside of a sphere. Enter a value for the diameter of the sphere in the Diameter box.CylinderModels natural convection on the outside of a cylinder. Enter a value for the diameter of the cylinder in the Diameter box, a value for the length of the cylinder in the Length box, and specify the axis of the cylinder using Specify Vector .Parallel Plate ChannelModels natural convection where an open channel is inclined to gravity. Enter a value for the length of the channel in the Length box, a value for the space between the two parallel plates in the Space Between Plate box, and specify the vector normal to the plates using Specify Vector .For more information, see Free convection correlations.
Convect from	Appears when Correlation is set to Inclined Plate or Horizontal Plate.Specifies the side of the elements that convect with respect to the element normal if the selected Convecting Region is meshed with either multi-layer shell elements or with shell elements that have top to bottom couplings.
Characteristic Information	Appears when Correlation is set to Inclined Plate or Horizontal Plate.Specifies how the solver applies the correlation to the selected geometry.The following options are only available if you choose Inclined Plate from the Correlation list:Calculate from Element SetUses the selected Convecting Region to control the calculation of convective heat transfer. SpecifyAllows you to control the calculation of convective heat transfer. Enter a value for the length of the plate along the direction of flow in the Characteristic Length box, and specify the vector perpendicular to the surface using Specify Vector .The following options are only available if you choose Horizontal Plate from the Correlation list:RectangularUses the standard correlation for a horizontal rectangular plate. Enter a value for the width of the plate in the Width box and a value for the length of the plate in the Length box.CircularUses the standard correlation for a horizontal circular plate. Enter a value for the diameter of the plate in the Diameter box.Arbitrary ShapeUses the standard correlation for a horizontal plate. Enter a value for the area of the plate in the Area box and a value for the perimeter of the plate in the Perimeter box.
Multiplier	Sets a value for the multiplier to adjust the correlation for features such as cooling fins or other factors affecting convection. For more information, see Additional magnitude options.
Coupling Resolution	Specifies the accuracy of the coupling. The software subdivides primary elements according to the Coupling Resolution before it determines conductances. One to OneCalculates a single conductance from each primary element to the nearest secondary element.Coarse through FinestSubdivides each primary element into a progressively larger number of sub-elements.Although it may seem that the finer subdivision level would produce more accurate results, this is not always the case.

How do I

Create a Thermal Coupling — Convection

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Thermal Coupling — Convection

Specifying a Coupling Resolution

Using the Only Connect Overlapping Elements option

Using the Overlap Projection Direction option

Thermal Coupling — Convection types

Free convection correlations

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Convection Coupling options

Forced Convection Coupling options

Across Gap Convection Coupling options

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Free Convection Coupling options, Simcenter 3D 2021.1 Series

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