Sphere Primitive dialog box (SST)

Common options

Option	Description
Element Type	Lists the supported 2D element types.
Destination Collector
Mesh Collector	Lets you select an existing collector. Click New Collector to use the Mesh Collector dialog box to create additional mesh collectors. See Mesh collectors for more information.
Definition
By	Controls the definition method:Parameters: Lets you define the sphere by assigning values to parameters in relation to the coordinate system you specify.Points: Lets you define the sphere by locating points in space in terms of 3D coordinates.
Mesh Density
Along Longitude	Defines the number of elements along the circumferential surface of the sphere in the longitudinal direction. The software generates the elements layer-by-layer, beginning at the defined Start Longitude point and ending at the End Longitude point.
Along Latitude	Defines the number of elements along the circumferential surface of the sphere in the latitudinal direction limited by the Start Latitude and End Latitude. The value also defines the number of layers in the mesh.
Top side faces inward	Select the check box to reverse the direction of the surface normals of the 2D elements so that they point inward.

Sphere primitive defined by parameters

Option	Description
Definition
Coordinate System	Lets you create or select a coordinate system. The software uses the origin of the coordinate system as the origin of the primitive.See CSYS dialog box for more information.
Radius	Defines the radius as a distance from the origin.Note: This spherical primary equatorial section is always parallel to the X-Y plane.
Start Latitude / End Latitude	Defines a circumferential segment of the spherical body in the latitudinal direction as measured from the X-axis.Note: The value you specify for Start Latitude should always be less than the value for End Latitude.
Start Longitude / End Longitude	Defines a circumferential segment of the spherical body in the longitudinal direction as measured from the X-axis.Note: The value you specify for Start Longitudeshould always be less than the value for End Longitude.

Parameter	Definition
	Radius
	Start Latitude
	End Latitude
	Start Longitude
	End Longitude

Sphere primitive defined by points

Option	Description
Definition
Center	Lets you select or create a point to define as the centre of the sphere.Click Point Constructor to use the Point dialog box to create a new point. See Point dialog box for more information.
Z axis	Lets you select or create a point to define the axis of the sphere in relation to the Origin. This defines the polar orientation.Note: The equatorial plane of the sphere is always located on the X-Y plane.
Radial extent – longitude start position	Lets you select or create a point to define the radius of the sphere. It also defines the limiting location in the longitudinal direction for the segment of the sphere surface included in the primitive.
Truncate in longitude	Lets you define a longitudinal termination limit (greater than 0°) for the sphere primitive.
Longitude end position	Appears only if Truncate in longitude is selected.Lets you select or create a point to define the Longitude end position.Note: For clarity, select or create the point on the circumference of the circular surface. The value you specify for Longitude end position should always be greater than the value for Radius extent – longitude start position.
Truncate bottom latitude	Lets you define a lower limit for the sphere primitive in relation to its designated X-Y plane. The sphere section between Radius extent – longitude start position (below the X-Y plane) and Latitude bottom position is cut away.
Latitude bottom position	Appears only if Truncate bottom latitude is selected.Lets you select or create a point to define the Latitude bottom position.
Truncate top latitude	Lets you define an upper limit for the sphere primitive in relation to its designated X-Y plane. The sphere section between Radius extent – longitude start position (above the X-Y plane) and Latitude top position is cut away.
Latitude top position	Appears only if Truncate top height is selected.Lets you select or create a point to define the Latitude top position.

Point	Definition
	Center
	Z Axis
	Radical Extent
	Truncate in Longitude
	Truncate Bottom Latitude
	Truncate Bottom Latitude
	Truncate Top Latitude

How do I

Create a primitive

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Primitives for Simcenter 3D Space Systems Thermal

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Sphere Primitive dialog box (SST), Simcenter 3D 2021.1 Series

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