Solvation force in hard ellipsoid fluids with HNW interaction

Abstract

In present work, using density functional theory and extended restricted orientation model, the one particle density of hard Gaussian overlap fluid near the colloid walls is calculated. The hard needle–wall interaction between molecules and colloids are considered. Using non-linear equation, proposed by Grimson–Rickyazen, the solvation force of hard ellipsoidal molecular fluid with hard Gaussian overlap interaction is calculated. We could not find the exact or simulation results for comparison. The results in the case k = 2.0 are compared with the solvation force of one-dimensional hard rod fluids. The results are corresponded, qualitatively.

Keywords:

• solvation force
• colloid
• ellipsoidal molecules
• hard needle–wall potential
• density functional theory
• non-linear approximation

PACS number(s):

• 61.20.Gy
• 61.30.Cz

Additional information

Funding

The authors would like to thank the Yasouj University Research Council for partial financial support [grant number 88‐1908].