Vibrational model of thermal conduction for fluids with soft interactions

Abstract

A vibrational model of heat transfer in simple liquids with soft pairwise interatomic interactions is discussed. A general expression is derived, which involves an averaging over the liquid collective mode excitation spectrum. The model is applied to quantify heat transfer in a dense Lennard-Jones liquid and a strongly coupled one-component plasma. Remarkable agreement with the available numerical results is documented. A similar picture does not apply to the momentum transfer and shear viscosity of liquids.

8 pages, 5 figures

References in corpus (8)

• Accurate Determination of the Shear Viscosity of the One-Component Plasma
• Fluid approach to evaluate sound velocity in Yukawa systems (complex plasmas)
• Collective modes in simple melts: Transition from soft spheres to the hard sphere limit
• Onset of transverse (shear) waves in strongly-coupled Yukawa fluids
• Ion sphere model for Yukawa systems (dusty plasmas)
• Sound velocities of Lennard-Jones systems near the liquid-solid phase transition
• Onset of negative dispersion in one-component-plasma revisited
• Elastic properties of dense hard-sphere fluids

Cited by in corpus (8)

• Excess entropy determines the applicability of Stokes-Einstein relation in simple fluids
• Transport properties of Lennard-Jones fluids: Freezing density scaling along isotherms
• Minima of shear viscosity and thermal conductivity coefficients of classical fluids
• Thermal conductivity of strongly coupled Yukawa fluids
• Freezing density scaling of fluid transport properties: Application to liquefied noble gases
• Bridgman formula for the thermal conductivity of atomic and molecular liquids
• Vibrational model of heat transfer in strongly coupled Yukawa fluids (dusty plasma liquids)
• Thermal conduction in two-dimensional complex plasma layers