Adiabatic waves along interfacial layers near the critical point

Henri Gouin (1, 2)

1 LMMT - Laboratoire de Modélisation Mécanique et Thermodynamique, EA 2596
2 IUSTI - Institut universitaire des systèmes thermiques industriels

Near the critical point, isothermal interfacial zones are investigated starting from a non-local density of energy. From the equations of motion of thermocapillary fluids, we point out a new kind of adiabatic waves propagating along the interfacial layers. The waves are associated with the second derivatives of densities and propagate with a celerity depending on the proximity of the critical point.

Mots clés: Fluid mechanics; waves; thermocapillary fluids

Domaines: Mécanique des fluides [physics.class-ph]; Physique mathématique [math-ph]; Autre [cond-mat.other]

Henri Gouin. Adiabatic waves along interfacial layers near the critical point. Comptes Rendus Mécanique, 2004, 332 (4), pp.285-292. ⟨10.1016/j.crme.2004.01.007⟩. ⟨hal-00204792⟩