Fluid Properties

Caution: All fluid property ("FPROP") files are provided as a convenience, not as supported products. Use at your own risk, and be sure to validate with other sources. The majority of these files are based on NIST data using REFPROP. These files are updated as new data becomes available and corrections are made without notice; be sure to check back often to make sure you are using the latest versions.

Fluid property files for use with CRTech software are installed with the software and are in a format that is only compatible with CRTech software. Over 130 fluids are available, most with two-phase with incompressible liquid, thermodynamically compressible liquid, or real gas (never liquid) options. The majority of these descriptions were developed using NIST's REFPROP program. Users may also create their own fluid property descriptions or create simplified descriptions from any of the full descriptions available.

For a list of properties which are available from CRTech (or to request a fluid property file, or for help developing a custom fluid file), please review our full table of property descriptions.

Note: The full library of fluid properties are included by installing SINDA/FLUINT Version 6.0 or later. The property files are installed in the public documents folder, which is automatically listed within the FloCAD property browser (a feature of the fluid submodel manager). Those installed files are pre-compiled for faster preprocessing and loading.

The NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) is available as a free download from the National Institute of Standards and Technology (NIST).