Freezing density scaling of fluid transport properties: Application to liquefied noble gases

Abstract

A freezing density scaling of transport properties of the Lennard-Jones fluid is rationalized in terms of the Rosenfeld's excess entropy scaling and isomorph theory of Roskilde-simple systems. Then, it is demonstrated that the freezing density scaling operates reasonably well for viscosity and thermal conductivity coefficients of liquid argon, krypton, and xenon. Quasi-universality of the reduced transport coefficients at their minima and at freezing conditions is discussed. The magnitude of the thermal conductivity coefficient at the freezing point is shown to agree remarkably well with the prediction of the vibrational model of heat transfer in dense fluids.

arXiv comment9 pages, 8 figures

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• Bridgman formula for the thermal conductivity of atomic and molecular liquids
• Excess entropy of strongly coupled Yukawa fluids
• Vibrational model of heat transfer in strongly coupled Yukawa fluids (dusty plasma liquids)
• Freezing density scaling of transport coefficients in the Weeks-Chandler-Andersen fluid
• Elementary vibrational model for thermal conductivity of Lennard-Jones fluids: Applicability domain and accuracy level
• Quasi-universal behaviour of shear relaxation times in simple fluids
• Generalized Rosenfeld-Tarazona scaling and high-density specific heat of simple liquids
• Speed of sound in dense simple liquids
• Vibrational model of entropy in dense two-dimensional fluids
• Modified Bridgman formula for the thermal conductivity of complex (dusty) plasma fluids
• Excess entropy scaling of the transverse sound speed in simple fluids