Calculation of a New Correlation Function for Disc Molecules Systems

Calculation of a New Correlation Function for Disc Molecules Systems

The direct correlation function plays an important role in liquid crystals. It is important for describing the effects of the structure of particle systems with respect to light diffraction, x-ray diffraction as well as transmission and transmission fluctuations of radiation through a dense suspension. Density functional theory is used to study confined two-dimensional molecular fluids. The approximate density functional used here is based upon a functional Taylor series expansion of the excess grand potential about the density of a uniform molecular liquid. The required direct correlation function is obtained using Percus-Yevick (PY) and Hypernetted chain (HNC) approximations for low and high number density, respectively