Coronal radiative losses
The Stockmayer potential is a mathematical model for representing the interactions between pairs of atoms or molecules. It consists of the Lennard-Jones potential with an embedded point dipole. Thus the Stockmayer potential becomes:
where:
- is the intermolecular pair potential between two particles at a distance r;
- is the diameter (length), i.e. the value of at ;
- : well depth (energy)
- is the vacuum permittivity
- is the dipole moment
- is the inclination of the two dipole axes with respect to the intermolecular axis.
- is the azimuth angle between the two dipole moments
If one defines the reduced dipole moment,
one can rewrite the expression as
For this reason the potential is sometimes known as the Stockmayer 12-6-3 potential.
Critical properties
References
- M. E. Van Leeuwe "Deviation from corresponding-states behaviour for polar fluids", Molecular Physics 82 pp. 383-392 (1994)
- Reinhard Hentschke, Jörg Bartke, and Florian Pesth "Equilibrium polymerization and gas-liquid critical behavior in the Stockmayer fluid", Physical Review E 75 011506 (2007)
- Attribution