Simulation of the droplet to bubble transition in a two fluid system
- University of Oviedo
- ORNL
- Lawrence Berkeley National Laboratory (LBNL)
Recent experiments by Burton and Taborek have demonstrated a droplet to bubble transition in the pinch-off behavior of one inviscid fluid inside another. With D the relative densities D_E/D_I, they find transition from (Rayleigh-Taylor D = 0) droplet to bubble behavior at D 4. Numerical simulations of this two-fluid system, up to and beyond the initial break up of the inner fluid, have been carried out utilizing Level Set and boundary integral methods. A droplet to bubble transition is predicted: for D sufficiently large, the volume of the satellite droplet shrinks to zero and there is no overturning of the fluid at separation. The calculated self-similar scaling exponents and the pinch-off region shapes match the known behaviour at the droplet and bubble extremes (D = 0, D = 100), but for the physical setting presented here the transition occurs in the range 4 < D < 10.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1015685
- Journal Information:
- Physical Review E, Vol. 83, Issue 4; ISSN 1539--3755
- Country of Publication:
- United States
- Language:
- English
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