Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session J26: Flow Instability: Rayleigh-Taylor II
4:35 PM–6:32 PM,
Sunday, November 19, 2023
Room: 151A
Chair: Balu Nadiga, LANL
Abstract: J26.00001 : Rayleigh-Taylor Instability : Bubble-Spike asymmetry in transitional regime
4:35 PM–4:48 PM
Presenter:
Swapnil Majumder
(Texas A&M University)
Authors:
Swapnil Majumder
(Texas A&M University)
Daniel Livescu
(LANL)
Sharath S Girimaji
(Texas A&M University)
Recr), significant bubble-spike asymmetry is observed. It is shown that the spike side is dominated by diffusive transport, whereas the bubble side is advective in nature. The metrics characterizing the advective and diffusive domains in this transitional regime are identified. The results of this study can lead to a more comprehensive understanding of RTI over a wide range of Mach and Knudsen numbers.
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