New virial equation of state for hard-disk fluids
نویسندگان
چکیده
منابع مشابه
Equation of state for hard-sphere fluids offering accurate virial coefficients.
The asymptotic expansion method is extended by using currently available accurate values for the first ten virial coefficients for hard sphere fluids. It is then used to yield an equation of state for hard sphere fluids, which accurately represents the currently accepted values for the first sixteen virial coefficients and compressibility factor data in both the stable and the metastable region...
متن کاملAn Improved ISM Equation of State for Polar Fluids
We developed an equation of state (EOS) by Ihm, Song, and Mason (ISM) for polar fluids. The model consists of four parameters, namely, the second virial coefficient, an effective van der Waals co-volume, a scaling factor, and the reduced dipole moment. The second virial coefficient is calculated from a correlation that uses the heat of vaporization, and the liquid density at the normal boiling ...
متن کاملSimulation-based equation of state of the hard disk fluid and prediction of higher-order virial coefficients
We present new molecular dynamics results for the pressure of the pure hard disk fluid up to the hexatic transition (about reduced density 0.9). The data combined with the known virial coefficients (up to B10) are used to build an equation of state, to estimate higher-order virial coefficients, and also to obtain a better value of B10. Finite size effects are discussed in detail. The “van der W...
متن کاملOn the equivalence between the energy and virial routes to the equation of state of hard-sphere fluids.
The energy route to the equation of state of hard-sphere fluids is ill defined since the internal energy is just that of an ideal gas, and thus it is independent of density. It is shown that this ambiguity can be avoided by considering a square-shoulder interaction and taking the limit of vanishing shoulder width. The resulting hard-sphere equation of state coincides exactly with the one obtain...
متن کاملThermodynamic pressures for hard spheres and closed-virial equation-of-state.
Hard-sphere molecular dynamics (MD) simulation results, with six-figure accuracy in the thermodynamic equilibrium pressure, are reported and used to test a closed-virial equation-of-state. This latest equation, with no adjustable parameters except known virial coefficients, is comparable in accuracy both to Padé approximants, and to numerical parameterizations of MD data. There is no evidence o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2010
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c0cp00476f