GT-SUITE Productivity Tools
COOL3D Underhood Modeling Preprocessor
COOL3D is a 3D preprocessor application tool used to build up complex underhood models for thermal
modeling applications. It includes provisions for detailed modeling of heat exchangers, fans, shrouds,
various positions of inlet and outlet flow, and blockages from structural elements. It then outputs a
discretized model of the cooling space that can then be opened in GT-ISE and readily connected to other
systems, such as the liquid coolant flowing in the internal passages of a radiator or the hot air flowing in
the internal passages of a charge air intercooler.
GT-SUITE's COOL3D preprocessor 3D flow-space solver differs from traditional full 3D CFD
approaches in two significant ways:
• GT-SUITE typically runs much faster than a full 3D CFD solution because it is usinga 1D
solution on the boundaries between subvolumes, while utilizing quasi-3D components
(3D flowsplit volumes, same as used to predict acoustic results in mufflers). GT-SUITE is mostly
complimentary to full 3D CFD in that the detailed analysis is very useful for more detailed spatial
resolution of the flow and thermal solution, such asto analyze localized temperatures (say surface
temperature of battery). But on the other hand, full 3D CFD is too slow to model many operating
conditions or to run Design of Experiments, where as COOL3D is practical for these applications
while producing equal results as 3D CFD in overall system performance such as mass flow rate
through a radiator or intercooler and sensitivity to spacing of thermal components.
• GT-SUITE uses a discretized solution of the internal and external side of the heat exchangers to
capture interactions between the external underhood flow and the coolant (internal) flow side
(for radiators) or air (for intercoolers), typically being integrated with the cooling system.
GT-SUITE's COOL3D preprocessor and flow solver also differ significantly from other 0D/1D analysis tools
in that it is much more predictive. Other tools often require user input to impose (i.e. non-predictive)
flow distribution in regions where the flow is expected to re-direct around structural elements or when flow
redistributes due to pressure gradients, say due to variations in fan speeds between the center and the
blade tips, where as GT-SUITE predicts these differences.
 For more information contact:(or contact us online) |
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| Gamma Technologies, Inc. 601 Oakmont Lane, Suite 220 Westmont, IL 60559 USA |
Tel. Fax. (630) 325-5849 Email: CAE@gtisoft.com Web: www.gtisoft.com |
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GT-SUITE v 7.2