The Rayleigh–Taylor instability of viscous fluid layers
作者： A. Elgowainy , N. Ashgriz
DOI: 10.1063/1.869283
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摘要: The effects of viscosity and surface tension on the nonlinear evolution Rayleigh–Taylor instability plane fluid layers are investigated. Full two-dimensional incompressible Navier–Stokes equations exact boundary solved simultaneously for a precise prediction this phenomenon. An accurate flux line segment model (FLAIR) advection is employed interface reconstruction. characterized by three stages development, which defined based competition bubble spike growth. This responsible development different morphologies decided geometrical factors, mainly amplitude wavelength initial perturbation, properties, tension. It addressed explained why sometimes grows faster than bubble, vice versa. cutoff most unstable wave numbers identified numerically Weber number. effect Reynolds growth rate role in dragging also
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