|
|
Line 1: |
Line 1: |
| The '''Vega''' equation of state for an isotropic fluid of hard (biaxial) [[Hard ellipsoids |ellipsoids]] is given by (Ref. 1 Eq. 20): | | The '''Vega''' equation of state for an isotropic fluid of hard (biaxial) [[Hard ellipsoid model |ellipsoids]] is given by (Ref. 1 Eq. 20): |
|
| |
|
| :<math> | | :<math> |
Revision as of 11:18, 25 July 2008
The Vega equation of state for an isotropic fluid of hard (biaxial) ellipsoids is given by (Ref. 1 Eq. 20):
where is the compressibility factor and is the volume fraction, given by
where is the number density.
The virial coefficients are given by the fits
and
where
- ,
and
where is
the volume, , the surface area, and the mean radius of curvature.
For see the page "Second virial coefficient".
References
- Carlos Vega "Virial coefficients and equation of state of hard ellipsoids", Molecular Physics 92 pp. 651-665 (1997)
- Carl McBride and Enrique Lomba "Hard biaxial ellipsoids revisited: Numerical results", Fluid Phase Equilibria (2007)