Université Paris-Sud

  Fluides, Automatique
  et Systèmes Thermiques

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   Accueil > Annuaire > C. Ruyer-Quil > resume-Fuster-Aussois-dec17

Bubble oscillation regimes including mass transfer

Daniel Fuster (DALEMBERT)

We investigate theoretically and numerically the effect of heat and mass transfer on the dynamic response of gas-vapor bubbles. The numerical solution of the full non-linear 1D equations is compared with the analytical solution of the equations obtained for the oscillation of an spherical gas/vapor bubble in response of a weak pressure perturbation (linear solution). We identify various linear oscillation regimes as a function of an nondimensional oscillation frequency (e.g. the bubble’s Peclet number) and the vapor content. In addition we also report simulations of the oscillation of bubbles for strong perturbations that show that non-linear effects restrict even further the range of applicability of the isothermal equilibrium model when the vapor content becomes larger than a critical value.

Dernière modification : December 07 2017, 10:17:23.