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S.Mohammad Motevalli

S.Mohammad Motevalli

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Department of Nuclear Physics, Faculty of Sciences, University of Mazandaran, P. O. Box 47415-416, Babolsar, Iran
Phone: 01135302480

Research

Title
Survey of segregation alteration of Hydrogen-Helium mixtures via structure factor
Type
JournalPaper
Keywords
equation of state, hetero-coordination, segregation, structure factor
Year
2016
Journal Moscow University Physics Bulletin
DOI
Researchers S.Mohammad Motevalli ، Maria Yaraei ، Mohammad Azimi

Abstract

In this study, thermodynamic instabilities in hydrogen-helium fluid mixture have been analyzed. These kinds of investigations are inevitable for indicating hydrodynamic transitions in Hydrogen-Helium fluid mixture. Therefore, first we have derived equation of state of mixture via Barker-Henderson statistical perturbation theory. Moreover, we have used Yiping radial distribution function in calculating perturbed terms. Via equation of state, we have calculated excess Gibbs free energy and the Gibbs free energy in the long wavelength limit. By means of this energy in hand we could estimate degree of hetero-coordination and segregations of this mixture which is a measure for defining thermodynamic instabilities. At last, these measurements have made us capable of anticipating thermodynamic instabilities and coordination of mixture in different concentrations.