Smith and Nezbeda associated fluid model

The Smith and Nezbeda associated fluid model consists of a hard sphere that has an attractive square well patch. The potential is given by (Eq. 1)

$\Phi ({\mathbf {r} }_{ij})=\Phi _{HS}({\mathbf {r} }_{ij})+\Phi _{CS}({\mathbf {r} }_{ij})+\Phi _{SC}({\mathbf {r} }_{ij})$

where ${\displaystyle }$ (Eq. 2)

$\Phi _{CS}\left({\mathbf {r} }_{ij}\right)=\left\{{\begin{array}{ccc}0&;&r_{CS}<0.5\\-\epsilon &;&0.5\leq r_{CS}<\lambda \\0&;&\lambda \leq r_{CS}\end{array}}\right.$

See also

• Kern and Frenkel patchy model
• PMW model of water