Contact values for disparate-size hard-sphere mixtures

Andres Santos (1) , Santos Bravo Yuste (1) , Mariano Lopez de Haro (1) , Morad Alawneh (2) , Douglas Henderson (2)

1 Department of Physics
2 Department of Chemistry and Biochemistry

A universality ansatz for the contact values of a multicomponent mixture of additive hard spheres is used to propose new formulae for the case of disparate-size binary mixtures. A comparison with simulation data and with a recent proposal by Alawneh and Henderson for binary mixtures shows reasonably good agreement with the predictions for the contact values of the large-large radial distribution functions. A discussion on the usefulness and limitations of the new proposals is also presented.

Mots clés: Physical Sciences

Andres Santos, Santos Bravo Yuste, Mariano Lopez de Haro, Morad Alawneh, Douglas Henderson. Contact values for disparate-size hard-sphere mixtures. Molecular Physics, 2009, 107 (07), pp.685-691. ⟨10.1080/00268970902852665⟩. ⟨hal-00513275⟩