Exported features of Primitives and their elements

Objects and features supported for export to all four radiation programs

Object or feature	Exported to ESARAD, TSS, Thermica, and Step-Tas as	Exported to TRASYS as
Primitive created by parameters	Primitive created by parameters (ESARAD, TSS, and Thermica)Primitive created by points (Step-Tas)	N/A
Primitive created by points	Primitive created by points	N/A
Primitive translations and rotations	Primitive translations and rotations	N/A
Element ID, position, and sequence	Element ID, position, and sequence for triangular, quadrilateral, and beam elements. Other elements are ignored.	N/A
Elements not part of a primitive definition	Individual primitives	Individual surface primitives (TYPE=POLY)
Curved parabolic elements	Individual primitives	Individual surface primitives (TYPE=DISK, CONE, CYL, SPHERO, OR PARAB)
Element thickness (physical property)	Element thickness	Element thickness
Units (length and material properties)	Converted to SI units before export	Converted to SI units before export
Some material properties	See the table in Primitive material properties supported for export.

Primitive material properties supported for export

The following primitive material properties are supported for export:

Simcenter 3D Space Systems Thermal Material Property	Exported as TSS property	Exported as ESARAD property	Exported as Thermica property	Exported as TRASYS	Exported as Step-Tas
Mass density	density	density	—	—	mass_density
Thermal conductivity	beta_cond1	cond	—	—	thermal_conductivity
Specific Heat	spec_heat	spec heat	—	—	constant_pressure_specific_heat_capacity
IR emissivity (top side)	ir_eps (a-side)	ir emiss (opt1)	EPSILON(e1)	EMISS (TOP)	infra_red_emittance
IR emissivity (bottom side)	ir_eps (b-side)	ir emiss (opt2)	EPSILON(e2)	EMISS (BOTH)	infra_red_emittance
IR specular reflectivity (top side)	ir_spec (a-side)	ir spec refl (opt1)	SPECE(se1)	—	infra_red_specularity
IR specular reflectivity (bottom side)	ir_spec (b-side)	ir spec refl (opt2)	SPECE(se2)	—	infra_red_specularity
IR transmissivity	ir_trans	ir transm (opt1)	—	—	infra_red_diffuse_transmittance
Solar absorptivity (top side)	sol_eps (a-side)	solar absorp (opt1)	ALPHA(a1)	ALPHA (TOP)	solar_absorptance
Solar absorptivity (bottom side)	sol_eps (b-side)	solar absorp (opt2)	ALPHA(a2)	ALPHA (BOTH)	solar_absorptance
Solar specular reflectivity (top side)	sol_spec (a-side)	solar refl (opt1)	SPECA(s1)	SPRS (TOP)	solar_specularity
Solar specular reflectivity (bottom side)	sol_spec (b-side)	solar refl (opt2)	SPECA(s2)	SPRS (BOTH)	solar_specularity
Solar index of refraction (top side)	sol_refract (a-side)	—	—	—	solar_refraction_index
Solar index of refraction (bottom side)	sol_refract (b-side)	—	—	—	solar_refraction_index
Solar transmissivity	sol_trans	solar transm (opt1)	—	TRANS	solar_diffuse_transmittance

Note:

Orthotropic conductivity is supported for import/export with TSS (beta_cond = KXX, gamma_cond = KYY, theta_cond = KZZ).

How do I

Export thermal and flow data

Export primitives or elements for radiation modeling

Learn more

Exporting thermal and flow data

CFD export to CGNS

Look up more details

CGNS output files

Export options for Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

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Exported features of Primitives and their elements, Simcenter 3D 2021.1 Series

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