Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Robert F. Benjamin"'
Autor:
Cherie Goodenough, A. Palekar, Kathy Prestridge, Robert F. Benjamin, Sanjay Kumar, Gregory C Orlicz, Peter Vorobieff, Christopher Tomkins, Mark Marr-Lyon
Publikováno v:
Physica D: Nonlinear Phenomena. 235:21-28
A Mach 1.2 planar shock wave impulsively and simultaneously accelerates a row of three heavy gas (SF6) cylinders surrounded by a lighter gas (air), producing pairs of vortex columns. The heavy gas cylinders (nozzle diameter D ) are initially equidist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62f7547b89667fd7af51c90731b82ca8
https://doi.org/10.1016/j.physd.2007.04.023
https://doi.org/10.1016/j.physd.2007.04.023
Autor:
Kathy Prestridge, Robert F. Benjamin, Peter Vorobieff, Mark Marr-Lyon, Paul Rightley, Christopher Tomkins
Publikováno v:
Physics of Fluids. 15:986-1004
We experimentally investigate the evolution and interaction of two Richtmyer–Meshkov-unstable gas cylinders using concentration field visualization and particle image velocimetry. The heavy-gas (SF6) cylinders have an initial spanwise separation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1e71e1a59aa4095d0e5bb222bf8f7bb
https://doi.org/10.1063/1.1555802
https://doi.org/10.1063/1.1555802
Publikováno v:
Experiments in Fluids. 29:339-346
We describe a highly-detailed experimental characterization of the Richtmyer-Meshkov instability (the impulsively driven Rayleigh-Taylor instability) (Meshkov 1969; Richtmyer 1960). In our experiment, a vertical curtain of heavy gas (SF6) flows into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33b6b04023a876d92d01079295bc4012
https://doi.org/10.1007/s003489900091
https://doi.org/10.1007/s003489900091
Publikováno v:
Physical Review Letters. 84:4353-4356
A varicose-profile, thin layer of heavy gas ( SF6) in lighter gas (air) is impulsively accelerated by a planar, Mach 1.2 shock, producing the Richtmyer-Meshkov instability. We present the first measurements of the circulation in the curtain during th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbe1244ae755b0b4f9b269e83dc7be88
https://doi.org/10.1103/physrevlett.84.4353
https://doi.org/10.1103/physrevlett.84.4353
Autor:
Robert F. Benjamin
Publikováno v:
The Physics Teacher. 37:332-336
A series of low-cost simple, “kitchen-physics” experiments demonstrates Rayleigh-Taylor Instability (RTI), the growth of ripples at an interface between fluids when the higher-density fluid is on top. We also describe the importance of RTI in oce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24fea7bf91ea270e01244e0b63ed8e64
https://doi.org/10.1119/1.880350
https://doi.org/10.1119/1.880350
Publikováno v:
Physica D: Nonlinear Phenomena. 133:469-476
We present estimates of the Hausdorff fractal dimension of a planar section of the interfaces on the sides of a thin curtain of heavy gas (SF6) embedded in air and accelerated with a planar shock wave at Mach 1.2. As the Richtmyer‐Meshkov instabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74fbb2fbae5b818819ae1ac6bc6c6bcf
https://doi.org/10.1016/s0167-2789(99)00079-2
https://doi.org/10.1016/s0167-2789(99)00079-2
Publikováno v:
Physics of Fluids. 11:186-200
Richtmyer–Meshkov instability of a thin curtain of heavy gas (SF6) embedded in air and accelerated by a planar shock wave (Mach 1.2) leads to the growth of interfacial perturbations in the curtain and to mixing. Our experiments produce a phenomenol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47a83d78a5be4ae61dd4d27ed23cfbbf
https://doi.org/10.1063/1.869911
https://doi.org/10.1063/1.869911
Publikováno v:
Physical Review Letters. 81:2240-2243
We investigate the evolution of a thin curtain of heavy gas (SF{sub 6} ) embedded in a lighter gas (air) and accelerated with a Machthinspthinsp1.2 planar shock wave. The Richtmyer-Meshkov instability leads to growth of the initial perturbations of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c31d267ac54fa4c2b0f49809d5e6bcd0
https://doi.org/10.1103/physrevlett.81.2240
https://doi.org/10.1103/physrevlett.81.2240
Publikováno v:
Physics of Fluids. 9:1770-1782
Multi-exposure flow visualization experiments with laser-sheet illumination provide growth-rate measurement of Richtmyer–Meshkov instability of a thin, perturbed heavy-gas layer embedded in a lower-density gas and accelerated by a planar shock wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b65caac6967b14c6b2809878cfeaab0
https://doi.org/10.1063/1.869299
https://doi.org/10.1063/1.869299
Publikováno v:
Physics of Fluids. 8:2471-2483
Direct 2‐D numerical simulation of the fluid instability of a shock‐accelerated thin gas layer shows flow patterns in agreement with experimental images. The Eulerian‐based hydrodynamics code features Adaptive Mesh Refinement that allows the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c54684398d69c951aff5fd269570a569
https://doi.org/10.1063/1.869032
https://doi.org/10.1063/1.869032