NSK

NSK is a graphically-oriented software for calculating phase equilibrium phenomena of binary mixtures described by classical equations of state. It supports the following style of work:

Study how the Gibbs function G(x) and its derivative dG(x)/dx changes with temperature, pressure, and material parameters
Locate phenomena of interest graphically
Turn on automatic mode and let NSK calculate loci (points and lines) of the phenomena

Examples of results:

T-x diagram with two three-phase points and an azeotrope
p-T diagram with a quadruple point
global phase diagram
III-->IV-->II transition (94kB) animated in the parameter space

The executables of NSK version 5.72 implement the van der Waals and Redlich-Kwong equations of state and the most common mixing rules. Un-zip the selected archive to a directory and read the read.me file.

DOS version, VGA required
Linux version, X11 required
DEC Alpha Unix version, X11 required
Silicon Graphics R4400 version, X11 required (not tested)

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