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.
Près du point critique, les couches interfaciales sont modélisées à l'aide d'une densité d'énergie non locale. A partir des équations du mouvement des fluides thermocapillaires, nous mettons en évidence des ondes adiabatiques se propageant le long des couches interfaciales. Ces ondes associées aux dérivées secondes des densités se meuvent avec une célérité dépendant de la proximité du point critique.
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Mots-clés : Mécanique des fluides, Ondes, Fluide thermocapillaire
Henri Gouin 1
@article{CRMECA_2004__332_4_285_0, author = {Henri Gouin}, title = {Adiabatic waves along interfacial layers near the critical point}, journal = {Comptes Rendus. M\'ecanique}, pages = {285--292}, publisher = {Elsevier}, volume = {332}, number = {4}, year = {2004}, doi = {10.1016/j.crme.2004.01.007}, language = {en}, }
Henri Gouin. Adiabatic waves along interfacial layers near the critical point. Comptes Rendus. Mécanique, Volume 332 (2004) no. 4, pp. 285-292. doi : 10.1016/j.crme.2004.01.007. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2004.01.007/
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