A variational principle applied to the dynamics of a liquid with diffusing gas bubbles

• Autorzy: Giovine P.
• Konferencja: International Conference on Continuous and Discrete Modelling in Mechanics (05-09.09.2005 ; Warsaw ; Poland)
• Języki publikacji: EN

Abstrakty

EN

The dynamic balance equations for bubbly liquids are deduced by evaluating the variation of a spatial Hamiltonian functional for immiscible mixtures. The constraint of incompressibility for the liquid is considered by choosing suitable "paths" of variation for the functions which describe the motion of the mixture and, although this appears to be a novelty, the equations obtained are in agreement with those derived from other theories, except for an inviscid drag term due to inertia forces and depending on changes of the radius of bubbles.

Słowa kluczowe

EN

Hamilton’s principle; dynamical balance equations; immiscible mixtures; bubbly liquids

PL

zasada Hamiltona; dynamiczna zależność równowagi; niemieszalne mieszaniny; płyny pęcherzykowe

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2006
• Tom: Vol. 58, nr 4-5
• Strony: 363--380
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Giovine P.

• Dipartimento di Meccanica e Materiali, Universita Mediterranea Via Graziella, 1, Localita Feo di Vito, I-89060 Reggio Calabria, Italy,

Bibliografia

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