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Theory and Modeling of Fluids Group


The Theory and Modeling of Fluids Group performs theoretical and simulational research on the thermophysical properties of fluids and fluid mixtures, including regions of fluid-fluid and fluid-solid phase separation. The Group develops models and correlations of high accuracy to describe and predict the thermophysical properties of fluids and fluid mixtures. Finally, the Group also provides comprehensive and evaluated Standard Reference Data and electronic databases for the properties of technically important fluids and fluid mixtures.

In addition to the programs and projects listed below, the Theory and Modeling of Fluids Group is working in consort with the University of Colorado and the Division's Cryogenics Group on a DARPA funded project to develop a Microcooler for Terahertz Detectors.


Implementation of Pure Fluid and Natural Gas Standards: Reference Fluid Thermodynamic and Transport Properties Database (REFPROP)—Major improvements have been made to the REFPROP program that impact how users incorporate new standards into their applications. A high impact standard, the GERG-2004 equation of state for natural …

Thermophysical Properties of Biofuels—The Thermophysical Properties Division has begun a program to develop thermophysical property data for the biofuels. Transportation fuels will undergo major changes in the coming years, and the …

International Standards on the Properties of Water— Researchers in the Thermophysical Properties Division of CSTL played a leading role in the development of several new international standards for the properties of water. This work was performed …

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General Information:

Marcia Huber, Group Leader
303-497-5252 Telephone
303-497-5044 Facsimile

325 Broadway
Mailcode 838.08
Boulder, CO 80305-3337

email: marcia.huber@nist.gov