Orientational Order In Polarized Molecular Fluids

When dipolar fluids change phase, the system can absorb or output plenty of heat,which can be used as storage energy or control environmental temperature so as to have great practical value. As the development of dipolar fluids theory, people have studied the relationship between molecular potential form,multidispersity,concentration,temperature,pressure,capacity and phase behavior of dipolar fluids. As we know, the impact of bond length on phase behavior have not been studied. Deplore the character of polar molecular fluids by investigate the relationship between bond length and it's phase behavior, which give rise to great practical and theoretical significance.In this paper, we have employed Density functional methods and integral equations in order to study the phase behavior of molecular fluids. Correlation distribution functions of fluids are computed under the RHNC closure and Picard iterative process for N 2with two thermodynamic states, then compute out the structure factors which reveal whether there are orientational order phenomenon. The results evident there are not orientational order phenomenon for this model. This work can provide some important value for the study of dipolar fluids.