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Press Release

C&R Technologies Announces Version 4.8 Product Releases

Littleton, Colorado, November 1, 2005

C&R Technologies, Inc. announced all new product releases for their tool suite; Version 4.8 installers are now available. This includes new releases of SINDA/FLUINT, SinapsPlus®, Thermal Desktop®, RadCAD® and FloCAD®. "C&R is very excited about the new features that have been introduced in this 4.8 version." says Cindy Beer, director of Marketing and Sales, "As always, we are being as responsive to our customers' needs as technically possible, and adding features that both make existing modeling tasks easier and open new areas of modeling capabilities. Our customers should find this new version a welcome upgrade."

Customers under current support contracts may download the updated versions for free however they will need to contact our support department for new license files. Customers who no longer are under current support contracts must contact our sales department to upgrade to the newer versions.

SINDA/FLUINT expansions include but are not limited to:

Extensive PUMP expansions accounting for:
- Cavitation detection and modeling
- Inefficiency, with associated calculation of hydraulic torque and outlet heating effects
- Nonideal head-flow rate maps for handling (for example) failure of the similarity rules at low and high speeds, and the import of maps from pump design software
- Optional use of flow coefficient and head coefficient instead of volumetric flow
  rates and heads
Rotating Paths - Previously, FLUINT paths could be optionally spun about an axis, causing an additional pressure force and having an effect on two-phase flow regimes. These options have been expanded to include:
- Axial components of velocity, allowing rotating paths to flow radially, axially, or in a mixed mode.
- Hydraulic torque and energy terms associated with rotation, including heating and shaft power effects appropriate for higher rotation speeds.
- Relative wall motions: flow between a rotating wall and a stationary wall, permitting violation of the solid body rotation assumption that was previously implicit
New solver connectivity and sensitivity checker
New routine TOTALTP to calculate the current total (stagnation) temperature and pressure for a particular lump/path pair
New heat transfer correlations for flow between Rotating and stationary disks
Expanded TABULAR connector options to be more applicable to compressible
flows and dynamic seals
New: FWDBCK (“Transient”) iterative thermal energy imbalance correction
New choked flow tabulation routine
A complete list of SINDA/FLUINT product updates is available on the world wide web at www.crtech.com/sindaRelNotes.html.

Thermal Desktop product expansions include but are not limited to:

AutoCAD 2006 compatability
Improvements to the NASTRAN and ANSYS importers
Default options have been setup for all Thermal Desktop objects
Contactor restarts have been added to speed up the calculation of contactors when the geometry or input has not changed.
RADK calculations and output have been modified to use less memory, which results in larger models being run. RADK jobs can be approximately 30% larger in size.
FloCAD pump input forms have been expanded to include several new input data options including full maps. Optional use of flow coefficient and head coefficient instead of volumetric flow rates and heads. Additional unit types are also supported. Flow area input is supported.
A complete list of Thermal Desktop product updates is available on the world wide web at: www.thermaldesktop.com/thermalDesktopRelNotes.html

SinapsPlus product expansions include but are not limited to:

Compatability with SINDA/FLUINT 4.8 expansions

Formed in 1992, C&R Technologies provides products and services in the areas of heat transfer and fluid flow design and analysis. C&R Technologies are the authors of world-class thermal and fluid software including SINDA/FLUINT, Thermal Desktop®, RadCAD®, FloCAD® and SinapsPlus®. For more information on C&R Technologies, Inc., contact us at 303.971.0292.

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