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Matlab_Programming_Example2

Matlab_Programming_Example2 - Chemical Engineering...

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University of Florida ECH 4123 Prof. Oscar D. Crisalle Phase and Chemical Equilibria Class Project MATLAB PROGRAMING EXAMPLE 2 CUBIC FORM OF THE VAN DER WAALS EQUATION OF STATE—M-FUNCTION AND M-FILE DRIVER Appendix: MATLAB Programming Examples Appendix A.1. Example of a MATLAB M-function developed for the cubic form of the van der Waals equation This Appendix contains an example of a MATLAB M-FUNCTION that calculates the roots of the cubic form of the van der Waals equation. The code shown below must be saved in a file with the following name: VdWEOS_ZV.m The first line of the file should start with the word function . function [Z1, Z2, Z3, V1, V2, V3 ] = VdWEOS_ZV(P, T, VdWpars) % On-line help for function VdWEOS_ZV % % Syntax: [Z1, Z2, Z3, V1, V2, V3 ] = VdWEOS_ZV(P, T, VdWpars) % % Description: % This function finds the three compressibility % factors that are the roots of the cubic van der % Waals equation of state, and converts these roots % to three specific volumes. % No attempt is made to discard complex roots.

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Matlab_Programming_Example2 - Chemical Engineering...

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