NX Space Thermal
for
Advanced Simulation environment is an industryspecific vertical application
for thermal analysis of space systems.
Aplicaciones de NX Space Thermal
Specific
capabilities for the Space industry

Orbital models for all planets of our solar system at
any specific point in time and attitude

Powerful and fast view factor calculations (including
parallel computing for large space thermal models)

Powerful and smart view factor transient
recalculations for the case of articulation simulations, such as for
solar panel joints rotation allowing constant pointing at the sun or
antenna pointing to specific location

Efficient transient solution for thermal shock
transient analyses during eclipse

Multilayer shells specific formulation for MLI and TPS
applications

Interfaces to:
 SINDA
 TSS
 TRASYS
 ESTAN
 ESARAD
 Thermica
NX
Space Systems Thermal solver capabilities

Steadystate (linear and nonlinear)

Large selection of 1D/2D/3D linear and parabolic finite
element types supported

Material nonlinear thermal properties

Multilayer shells for MLI and TPS applications

Axisymmetric modeling

Cyclic thermal problems

Iterative conjugate gradient solver technology

Fully coupled conduction, radiation and convection heat
transfer simulation

1D duct and hydraulic network elements

Motion and articulation modeling (translational motion
and rotational joints)
Thermal
Coupling technology for modeling thermal contacts within NX assembly

Thermally connect disjoint and dissimilar mesh faces
and edges

Surfacetosurface, edgetoedge or edgetosurface
contact modeling between parts: constant, time or temperaturedependent
coefficient of heat transfer, resistance or conductance

Radiative exchange between disjoint part faces, and
faces within a single part

Interface modeling between connected parts: constant,
time or temperaturedependent coefficient of heat transfer, resistance or
conductance

Convective exchange correlations between faces:
parallel plates, concentric spheres or cylinders

Join

One Way heat transfer

User defined

Connection break, Series or Tjunction
Optical,
material and surface properties

Electrical resistivity

Phase change and ablation properties

Extinction coefficient

Refraction

Bivariate tables

Transmissivity/specularity

Angledependent optical properties
Applied
heat loads
Temperature
boundary conditions

Constant temperature for steadystate or transient

Time varying for transient and for nonlinear
steadystate

Thermostat temperature controls or PID controllers
Conduction
heat transfer

Handles large conduction models (memory efficient data
scheme)

Temperaturedependent conductivity, specific heat

Orthotropic conductivity

Heat of formation at phase change temperature
Convection
heat transfer

Constant, time and temperaturedependent heat transfer
coefficients

Parameter and nonlinear temperature gradient functions
Free
convection
Forced
convection
Radiation
heat transfer

Constant and temperaturedependent emissivity

Multiple radiation enclosures

Diffuse view (form) factor calculations with shadowing

Net view (form) factor calculations

Adaptive scheme for view (form) factor sum optimization

Hemicubebased view (form) factors calculation using
graphics card hardware

Radiation patch generation to condense large
elementbased radiation models

Radiation matrix controls and parameters

Additional radiation request types:
 Among group
 Grouptogroup
 Monte Carlo calculation method
 Enhanced radiation with Ray Tracing
Initial
conditions

Starting temperatures for both steadystate and
transient

Starting temperatures from previous solution results,
from file
Solver
solution attributes

Restart conditions

Cyclic convergence criteria

Direct access to solver parameters

Solver convergence criteria and relaxation factors

Solver monitor with solution convergence and attributes

Intermediate results display and recovery directly from
solver progress monitor

Open Architecture (user subroutines)

Support to include external files
Other
features

Results Reporter

Summary of results to MS® Excel worksheets

Heat flow calculation between groups

Heat maps

Complete or partial deactivation of selected elements
(for radiation form factors calculations)

Temperature mapping for Nastran FE models
Results
postprocessing

Temperatures

Temperature gradient

Total load and flux

Conductive flux

Convective flux

Convection coefficients

Residual

Heat map

View factor sum
SÍGUENOS
EN:
