Continuous shouldered well model: Difference between revisions
Jump to navigation
Jump to search
Carl McBride (talk | contribs) (New page: {{stub-general}} The '''continuous shouldered well model''' is given by (Ref. 1 Eq. 1): :<math>\Phi_{12}(r) = \frac{U_R}{1 + \exp [\Delta(r-R_R)/a]} -U_A \exp \left[ -\frac{(r-R_A)^2}{2\d...) |
m (Better defined r) |
||
| Line 4: | Line 4: | ||
:<math>\Phi_{12}(r) = \frac{U_R}{1 + \exp [\Delta(r-R_R)/a]} -U_A \exp \left[ -\frac{(r-R_A)^2}{2\delta_A^2} \right] + \left(\frac{a}{r}\right)^{24}</math> | :<math>\Phi_{12}(r) = \frac{U_R}{1 + \exp [\Delta(r-R_R)/a]} -U_A \exp \left[ -\frac{(r-R_A)^2}{2\delta_A^2} \right] + \left(\frac{a}{r}\right)^{24}</math> | ||
where <math>\Phi_{12}</math> is the [[intermolecular pair potential]], <math>U_R</math> is the energy of the repulsive shoulder, <math>U_A</math> is the energy of the attractive well, <math>a</math> is the diameter of the particles. | where <math>\Phi_{12}</math> is the [[intermolecular pair potential]], <math>U_R</math> is the energy of the repulsive shoulder, <math>U_A</math> is the energy of the attractive well, <math>a</math> is the diameter of the particles, and <math>r := |\mathbf{r}_1 - \mathbf{r}_2|</math>. | ||
==References== | ==References== | ||
#[http://dx.doi.org/10.1016/j.molliq.2007.08.021 Giancarlo Franzese "Differences between discontinuous and continuous soft-core attractive potentials: The appearance of density anomaly", Journal of Molecular Liquids '''136''' pp. 267-273 (2007)] | #[http://dx.doi.org/10.1016/j.molliq.2007.08.021 Giancarlo Franzese "Differences between discontinuous and continuous soft-core attractive potentials: The appearance of density anomaly", Journal of Molecular Liquids '''136''' pp. 267-273 (2007)] | ||
#[http://dx.doi.org/10.1063/1.2830706 Alan Barros de Oliveira, Giancarlo Franzese, Paulo A. Netz, and Marcia C. Barbosa "Waterlike hierarchy of anomalies in a continuous spherical shouldered potential", Journal ofChemical Physics '''128''' 064901 (2008)] | #[http://dx.doi.org/10.1063/1.2830706 Alan Barros de Oliveira, Giancarlo Franzese, Paulo A. Netz, and Marcia C. Barbosa "Waterlike hierarchy of anomalies in a continuous spherical shouldered potential", Journal ofChemical Physics '''128''' 064901 (2008)] | ||
[[Category: Models]] | [[Category: Models]] | ||
Revision as of 16:03, 17 July 2008
|
This article is a 'stub' page, it has no, or next to no, content. It is here at the moment to help form part of the structure of SklogWiki. If you add sufficient material to this article then please remove the {{Stub-general}} template from this page. |
The continuous shouldered well model is given by (Ref. 1 Eq. 1):
![{\displaystyle \Phi _{12}(r)={\frac {U_{R}}{1+\exp[\Delta (r-R_{R})/a]}}-U_{A}\exp \left[-{\frac {(r-R_{A})^{2}}{2\delta _{A}^{2}}}\right]+\left({\frac {a}{r}}\right)^{24}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/bbc66fc37940b5e744613ca304f08b86ec9574a5)
where is the intermolecular pair potential, is the energy of the repulsive shoulder, is the energy of the attractive well, is the diameter of the particles, and .
References
- Giancarlo Franzese "Differences between discontinuous and continuous soft-core attractive potentials: The appearance of density anomaly", Journal of Molecular Liquids 136 pp. 267-273 (2007)
- Alan Barros de Oliveira, Giancarlo Franzese, Paulo A. Netz, and Marcia C. Barbosa "Waterlike hierarchy of anomalies in a continuous spherical shouldered potential", Journal ofChemical Physics 128 064901 (2008)