Solvation force in hard ellipsoid fluids with HNW interaction

What is it about?

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.

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Why is it important?

Finally, the present calculations showed that the extended restricted orientational model of HNC DFT can be usefully applied to confined liquids comprising HGO particles with HNW potential. It was used to calculate the solvation force of molecular liquids confined between colloids with HNW particle–substrate interaction. It could correctly predict the solvation forces correspond to behaviour of both homeotropic and planar arrangements ofHGOconfined liquid.