Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Jan-Bert Flór"'
Autor:
Ian Eames, Jan-Bert Flór
Publikováno v:
Interface Focus. 12
The fluid mechanical processes that govern the spread of infectious agents through the air in complex spaces are reviewed and the scientific gaps and challenges identified and discussed. Air, expelled from the nose and mouth, creates turbulent jets t
Publikováno v:
Physical Review Fluids
Physical Review Fluids, American Physical Society, 2021, 6 (11), pp.114804. ⟨10.1103/PhysRevFluids.6.114804⟩
Physical Review Fluids, American Physical Society, 2021, 6 (11), pp.114804. ⟨10.1103/PhysRevFluids.6.114804⟩
International audience; In this experimental study we consider the geometric focusing of internal waves by the horizontal oscillation of a torus in a stratified or rotating stratified fluid. In order to minimize viscous dissipation the experiments ha
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 833, pp.70-97. ⟨10.1017/jfm.2017.696⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 833, pp.70-97. ⟨10.1017/jfm.2017.696⟩
Gravity currents often occur on complex topographies and are therefore subject to spatial development. We present experimental results on continuously supplied gravity currents moving from a horizontal to a sloping boundary, which is either concave o
Autor:
Jan-Bert Flór, Natalia Shmakova
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2019, 862, ⟨10.1017/jfm.2018.1020⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2019, 862, ⟨10.1017/jfm.2018.1020⟩
When a torus oscillates horizontally in a linearly stratified fluid, the wave rays form a double cone, one upward and one downward, with two focal points where the wave amplitude has a maximum due to wave focusing. Following a former study on linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a20441e9f06da112bc34f2289271f166
https://hal.archives-ouvertes.fr/hal-02045993/document
https://hal.archives-ouvertes.fr/hal-02045993/document
Publikováno v:
Physics of Fluids
Physics of Fluids, American Institute of Physics, 2018, 30 (8), ⟨10.1063/1.5033550⟩
Physics of Fluids, 30(8):084103. American Institute of Physics
Physics of Fluids, American Institute of Physics, 2018, 30 (8), ⟨10.1063/1.5033550⟩
Physics of Fluids, 30(8):084103. American Institute of Physics
In this experimental note, we consider the centrifugal instability of a laminar shear layer, generated by the impulsive start of the rotation of a circular solid cylinder about its vertical axis immersed in a linearly stratified fluid. The flow is de
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 813, pp.695-715. ⟨10.1017/jfm.2016.871⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2017, 813, pp.695-715. ⟨10.1017/jfm.2016.871⟩
This paper presents an experimental study on internal waves emitted by a horizontally oscillating torus in a linearly stratified fluid. Two internal wave cones are generated with the kinetic energy focused at the apices of the cones above and below t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a6fe346d6daec520c373a28fbfd73f
https://hal.archives-ouvertes.fr/hal-01647829/file/b_Ermanyuk2017.pdf
https://hal.archives-ouvertes.fr/hal-01647829/file/b_Ermanyuk2017.pdf
Publikováno v:
Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2016, pp.448-475. ⟨10.1017/jfm.2016.360⟩
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2016, pp.448-475. ⟨10.1017/jfm.2016.360⟩
In this experimental–theoretical investigation, we consider a turbulent plume generated by an isothermal wall in a closed cavity and the formation of heat stratification in the interior. The buoyancy of the plume near the wall and the temperature s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15729b0d1f84e86a6ce0e9f317ddacc5
https://hal.archives-ouvertes.fr/hal-01368475
https://hal.archives-ouvertes.fr/hal-01368475
Publikováno v:
Emil Hopfinger Colloquium 2016
Emil Hopfinger Colloquium 2016, May 2016, Grenoble, France
HAL
VIIIth International Symposium on Stratified Flows
VIIIth International Symposium on Stratified Flows, Aug 2016, San Diego, United States
Emil Hopfinger Colloquium 2016, May 2016, Grenoble, France
HAL
VIIIth International Symposium on Stratified Flows
VIIIth International Symposium on Stratified Flows, Aug 2016, San Diego, United States
International audience; Wave focusing can be considered as a possible scenario for energy concentration in localized zones representing hot spots for incipient overturning in the oceans (Buijsman et al., 2014; Peliz et al., 2009).In laboratory experi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ac76319fc06b1a69c4f3640728197b82
https://hal.archives-ouvertes.fr/hal-01938061/document
https://hal.archives-ouvertes.fr/hal-01938061/document
Publikováno v:
68th Annual Meeting of the APS Division of Fluid Dynamics
68th Annual Meeting of the APS Division of Fluid Dynamics, Nov 2015, Boston, United States
HAL
68th Annual Meeting of the APS Division of Fluid Dynamics, Nov 2015, Boston, United States
HAL
International audience; Mixing of the abyssal ocean plays a decisive role in large-scale ocean circulation and is believed to be caused by the nonlinear breaking of internal tides. Previous studies of two- and three-dimensional cases considered the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::eff8538c17405e2dc5b95830a1a85ba0
https://hal.archives-ouvertes.fr/hal-01938160
https://hal.archives-ouvertes.fr/hal-01938160
Publikováno v:
68th Annual Meeting of the APS Division of Fluid Dynamics
68th Annual Meeting of the APS Division of Fluid Dynamics, Nov 2015, Boston, United States
HAL
68th Annual Meeting of the APS Division of Fluid Dynamics, Nov 2015, Boston, United States
HAL
International audience; Among the various mechanisms susceptible of leading to local intensification of internal wave energy, followed by breaking and ultimately mixing, a specific three-dimensional mechanism has received little attention so far: the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9ace8d6def35f720f290e8cd3ca12633
https://hal.science/hal-01938124
https://hal.science/hal-01938124