Calculation of density fluctuation contributions to thermodynamic properties of simple fluids
An equation of state, expressed in the form of a recursion relation for the Helmholtz free energy density, is presented. This equation of state represents the free energy density as an initial mean field free energy density, plus a sum of density fluctuation correction terms which serve both to dress the initial mean field equation of state into a more accurate analytic equation of state away from the critical region, and to provide the characteristic asymptotic singular behavior in the critical region. Numerical solutions of the recursion relations are described and presented as pressure isotherms and the calculated density coexistence curve. A comparison is made with simple fluid data for temperatures in the range 0.7≤T/T
Duke Scholars
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Chemical Physics
- 51 Physical sciences
- 40 Engineering
- 34 Chemical sciences
- 09 Engineering
- 03 Chemical Sciences
- 02 Physical Sciences
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Chemical Physics
- 51 Physical sciences
- 40 Engineering
- 34 Chemical sciences
- 09 Engineering
- 03 Chemical Sciences
- 02 Physical Sciences