RadCadde C&R Technologies
RadCAD es un analizador de radiación térmica disponible para su uso con Thermal Desktop o como programa independiente. RadCAD usa algoritmos Monte Carlo para el cálculo de factores de forma, conductores de radiación y tasas de calentamiento para representaciones de superficies cónicas.
RadCAD is a thermal radiation analyzer available for use with Thermal Desktop
or stand alone. RadCAD uses Monte Carlo Ray Tracing to calculate form factors,
radiation conductors, and heating rates for true conic surface representations
for input into SINDA/FLUINT. RadCAD is the first radiation analyzer to integrate
arbitrary CAD generated surfaces with familiar parameterbased (TRASYS like)
surfaces.
Why use RadCAD
There are many reasons to use Thermal Desktop/RadCAD and a full report can
be found here. A quick summary of the three major reasons is listed below.
 Thermal Desktop/RadCAD uses snap on model building. Thermal
Desktop is CAD based. This allows Thermal Desktop to take full advantage of
CAD model building. Whether you are sketching your Thermal Desktop surfaces
over an IGES wireframe or snapping new surfaces to the referenced points of
existing surfaces, you'll find that you are building your model more
accurately and faster than ever.
 Thermal Desktop/RadCAD runs on a PC. Finally, the thermal
engineer doesn't need two computers. Thermal Desktop runs on the same PC
under the same OS as your word processing system (see system requirements
for details). No more transferring your phone and going to a computer room.
You can work right at your desk and easily switch between developing your
model and documenting it.
 RadCAD is fast. RadCAD uses proprietary advances in Monte Carlo
ray tracing to achieve remarkable calculation speed. One significant advance
is the progressive radiosity routine used to turn view factors into
radiation conductors. At C&R, we are keeping up with the latest technology
to provide users with the fastest most accurate solution possible.
RadCAD Features
 Monte Carlo Ray Tracing to calculate form factors, radiation conductors,
and environmental heating
 Calculations using Monte Carlo ray tracing or advanced radiosity methods
 Proprietary advances in Oct Cell technology for amazingly fast
computations
 True curved geometric surfaces
 Specular and Diffuse surfaces
 Angular dependent surface properties
 Variable model geometry with planet, sun, and star tracking
 Full Orbit plotting package with both basic and Keplerian input
 Analysis groups offer significant speed savings
 Optical Property Aliases help in database management
 Refraction capabilities for transparent specular surfaces
 Automatic Oct Cell optimization for determining best subdivision and
surfaces per cell criteria
 Articulators can now be functional between user specified orbit
positions
 Vector List Orbit definition for modeling trajectory orbits
 Arbitrary source input for modeling IR/Sol Lamps
 Fast spinning surfaces
 Symmetry/Mirror planes
 Automatic restart determination
 Free Molecular Heating (FMH) algorithms have been added to allow
calculation of heating loads during ascent of launch vehicles
 Quick checks to allow for finding surfaces that overlap to aid in
radiation model debugging
Import and Export Capabilities
 TRASYS import and export
 Nevada import
 STEPTAS import and export
 IDEAS import
 FEMAP import
 STEP209 import and export
 NASTRAN import and export of temperature mapping
 TSS import and export
