Littérature scientifique sur le sujet « Oscillating-Diffusive regime »
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Articles de revues sur le sujet "Oscillating-Diffusive regime"
Carpenter, J. R., T. Sommer et A. Wüest. « Stability of a Double-Diffusive Interface in the Diffusive Convection Regime ». Journal of Physical Oceanography 42, no 5 (1 mai 2012) : 840–54. http://dx.doi.org/10.1175/jpo-d-11-0118.1.
Texte intégralScalo, Carlo, Ugo Piomelli et Leon Boegman. « Self-similar decay and mixing of a high-Schmidt-number passive scalar in an oscillating boundary layer in the intermittently turbulent regime ». Journal of Fluid Mechanics 726 (5 juin 2013) : 338–70. http://dx.doi.org/10.1017/jfm.2013.228.
Texte intégralGODEFERD, F. S., et L. LOLLINI. « Direct numerical simulations of turbulence with confinement and rotation ». Journal of Fluid Mechanics 393 (25 août 1999) : 257–308. http://dx.doi.org/10.1017/s0022112099005637.
Texte intégralFlanagan, Jason D., Timour Radko, William J. Shaw et Timothy P. Stanton. « Dynamic and Double-Diffusive Instabilities in a Weak Pycnocline. Part II : Direct Numerical Simulations and Flux Laws ». Journal of Physical Oceanography 44, no 8 (1 août 2014) : 1992–2012. http://dx.doi.org/10.1175/jpo-d-13-043.1.
Texte intégralFeng, W., S. T. Wei, C. Wang et J. C. Cao. « Nonlinear electron transport in miniband superlattice driven by dual terahertz fields and a transverse magnetic field ». Modern Physics Letters B, 30 avril 2022. http://dx.doi.org/10.1142/s0217984922500129.
Texte intégralEzzahri, Y., K. Joulain et A. Shakouri. « Transient Energy and Heat Transport in Metals : Effect of the Discrete Character of the Lattice ». Journal of Heat Transfer 133, no 7 (5 avril 2011). http://dx.doi.org/10.1115/1.4003577.
Texte intégralPalade, Dragos Iustin, Ligia Maria Pomârjanschi et Maria Iustin Ghiță. « Scaling laws of two-dimensional incompressible turbulent transport ». Physica Scripta, 24 novembre 2023. http://dx.doi.org/10.1088/1402-4896/ad0fc9.
Texte intégralLi, Scott W., et Andrew W. Woods. « Boundary mixing. Part 2. The impact of ventilation ». Journal of Fluid Mechanics 985 (22 avril 2024). http://dx.doi.org/10.1017/jfm.2024.111.
Texte intégralThèses sur le sujet "Oscillating-Diffusive regime"
Lalloz, Samy. « De la diffusion à la propagation d'ondes en magnétohydrodynamique bas-Rm : études théorique et expérimentale ». Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALI020.
Texte intégralThe thesis aims to clarify the conditions for Alfvén waves to propagate in a closed liquid metal domain. A first part of the research work presented is dedicated to a linear study of Alfvén waves in the low-Rm approximation and under the inertia-less limit. The second part is the experimental investigation of an electrically-induced oscillating flow subjected to an axial, static and uniform magnetic field and confined between two electrically insulating and no-slip horizontal walls.The theoretical study is itself split into two sub-parts. The first one aims to discuss the dispersion relation which contains the Alfvén wave dynamics. It presents the consequences of (mechanical and magnetic) gradients perpendicular to the imposed magnetic field. As such transverse gradients tend to impede the wave propagation. In the second sub-part an axisymmetric vortex confined between to electrically insulated and no-slip horizontal walls is magnetically forced at a given frequency. This forcing is radially dependent so as to study the impact of transverse gradients on the flow dynamics. A semi-analytical investigation of the flow dynamics is again carried out in the low-Rm approximation and under the inertia-less limit. This investigation is performed by varying the forcing frequency and the magnetic field intensity. This brings to emphasize two very distinct regimes for the oscillating vortex:- an oscillating-diffusive regime governed by the competition between pseudo-diffusive effects of the Lorentz force and the unsteady term of the momentum- a truly propagative regime, obtained for higher forcing frequencies, found definitelygoverned by Alfvén waves.The study also highlights how the propagative regime can be affected by transverse gradients. In addition to over-damping the waves, transverse gradients are found to modify the natural frequencies for which wave resonance peaks result from the superimposition of incident and reflected waves in the container.Beside this theoretical work, a setup has been designed in order to experimentally investigate the dynamics of oscillating flows under a strong magnetic field (up to 10T). A flow was forced in a cuboid vessel 15 cm x 15 cm x 10 cm by means of AC currents injected through a cartesian grid of four electrodes located at the bottom plate. Using instrumentation based on the measurement of local electric potential differences at the top and bottom horizontal (Hartmann) plates, we validate model's prediction. More precisely, a propagative dynamics in the presence of transverse gradients is recovered. The oscillating-diffusive regime is also recovered from experiments performed at small enough forcing frequency.In addition to results obtained at the forcing frequency, a first insight of signals obtained at other frequencies is shown. Frequency peaks obtained, eg the harmonics of the forcing frequency, are demonstrated not to be explained by a linear approach. We suggest that Alfvén wave non-linear interactions are a good candidate to explain these peaks. A preliminary study further shows that peaks at the first harmonic are likely to be Alfvén waves
Actes de conférences sur le sujet "Oscillating-Diffusive regime"
Ezzahri, Y., et A. Shakouri. « Transient Energy and Heat Transport in Metals ». Dans ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88280.
Texte intégralHabibzadeh, M. R., et M. H. Keyhani. « Experimental Investigation on Quenching Distance for Aluminum Dust Flames ». Dans ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55006.
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