C. Aarcoumanis, J. J. Mcguik, and J. M. Palma, On the use of fluorescence dyes for concentration measurements in water flows, Exp. Fluids, vol.10, pp.177-190, 1990.

R. J. Adrian, Particle-Imaging Techniques for Experimental Fluid Mechanics, Annual Review of Fluid Mechanics, vol.23, issue.1, pp.261-304, 1991.
DOI : 10.1146/annurev.fl.23.010191.001401

M. S. Altinakar, W. H. Graf, and E. J. Hopfinger, Flow structure in turbidity currents, Journal of Hydraulic Research, vol.93, issue.5, pp.713-718, 1996.
DOI : 10.1080/00221688709499292

P. S. Karasso and M. G. , PLIF measurements in aqueaous flows using the Nd :YAG laser, Exp. Fluids, vol.23, 1997.

M. H. Baird, K. Aravamudan, N. V. Rao, J. Chadam, and A. P. Peirce, Unsteady axial mixing by natural convection in a vertical column, AIChE Journal, vol.38, issue.11, pp.1825-1834, 1992.
DOI : 10.1002/aic.690381113

M. O. Baringer and J. F. Price, Mixing and Spreading of the Mediterranean Outflow, Journal of Physical Oceanography, vol.27, issue.8, pp.1654-1677, 1997.
DOI : 10.1175/1520-0485(1997)027<1654:MASOTM>2.0.CO;2

M. , L. Bars, and A. Davaille, Large interface deformation in two-layer thermal convection of miscible viscous fluids, J. Fluid. Mech, vol.469, pp.121-160, 2002.
URL : https://hal.archives-ouvertes.fr/hal-00084086

T. B. Benjamin, Gravity currents and related phenomena, Journal of Fluid Mechanics, vol.18, issue.02, pp.31-209, 2006.
DOI : 10.1017/S0022112068000133

T. Bonometti and S. Balachandar, Effect of Schmidt number on the structure and propagation of density currents, Theoretical and Computational Fluid Dynamics, vol.31, issue.5, pp.341-361, 2008.
DOI : 10.1007/s00162-008-0085-2

URL : https://hal.archives-ouvertes.fr/hal-00862762

A. E. Boycott, Sedimentation of Blood Corpuscles, Nature, vol.104, issue.2621, p.532, 1920.
DOI : 10.1038/104532b0

P. Bradshaw, Turbulent Secondary Flows, Annual Review of Fluid Mechanics, vol.19, issue.1, pp.53-74, 1987.
DOI : 10.1146/annurev.fl.19.010187.000413

R. E. Britter and P. F. Linden, The motion of the front of a gravity current travelling down an incline, Journal of Fluid Mechanics, vol.3, issue.03, pp.531-543, 1980.
DOI : 10.1017/S0022112080000754

R. E. Britter and J. E. Simpson, Experiments on the dynamics of a gravity current head, Journal of Fluid Mechanics, vol.64, issue.02, pp.223-240, 1978.
DOI : 10.1017/S0022112078002074

K. A. Browning and C. D. Watkins, Observations of Clear Air Turbulence by High Power Radar, Nature, vol.8, issue.5255, pp.260-263, 1970.
DOI : 10.1038/227260a0

J. B. Cannon and E. E. Zukoski, Turbulent mixing in vertical shafts under conditions applicable to fires in high rise buildings, Technical Fire Report n o 1 to the National Science Foundation, California Institute of Technology, 1975.

M. I. Cantero, J. R. Leee, S. Balachandar, and M. H. Garcia, On the front velocity of gravity currents, Journal of Fluid Mechanics, vol.33, pp.1-39, 2007.
DOI : 10.1017/S0022112095002825

P. Chakraborty, S. Balachandar, and R. J. Adrian, On the relationships between local vortex identification schemes, Journal of Fluid Mechanics, vol.535, pp.189-214, 2005.
DOI : 10.1017/S0022112005004726

J. W. Chan, D. B. Lang, and P. E. Dimotakis, Scalar concentration measurments in liquid-phase flows with pulsed laser, Exp. Fluids, vol.36, pp.268-273, 2004.

P. Chassaing, Turbulence en mécanique des fluides, Cépaduès-Éditions, 2000.

E. Climent and J. Magnaudet, Large-Scale Simulations of Bubble-Induced Convection in a Liquid Layer, Physical Review Letters, vol.82, issue.24, pp.4827-4830, 1999.
DOI : 10.1103/PhysRevLett.82.4827

G. Comte-bellot, Hot-Wire Anemometry, Annual Review of Fluid Mechanics, vol.8, issue.1, pp.209-231, 1976.
DOI : 10.1146/annurev.fl.08.010176.001233

URL : https://hal.archives-ouvertes.fr/hal-00461420

A. W. Cook and P. E. Dimotakis, Transition stages of Rayleigh?Taylor instability between miscible fluids, J. Fluid. Mech, vol.443, pp.69-99, 2001.

J. Coppeta and C. Rogers, Dual emission laser induced fluorescence for direct planar scalar behavior measurements, Experiments in Fluids, vol.25, issue.1, pp.1-15, 1998.
DOI : 10.1007/s003480050202

I. Van-cruyningen, A. Lozano, and R. Hanson, Quantitative imaging of concentration by planar laser-induced fluorescence, Experiments in Fluids, vol.5, issue.2, pp.41-49, 1990.
DOI : 10.1007/BF00187871

S. B. Dalziel, P. F. Linden, and D. L. Youngs, Self-similarity and internal structure of turbulence induced by Rayleigh???Taylor instability, Journal of Fluid Mechanics, vol.399, pp.399-400, 1999.
DOI : 10.1017/S002211209900614X

G. J. Daviero, P. J. Roberts, and K. Maile, Refractive index matching in large-scale stratified experiments, Experiments in Fluids, vol.31, issue.2, pp.119-126, 2001.
DOI : 10.1007/s003480000260

I. P. De-silva, H. J. Fernando, F. Eaton, and D. Hebert, Evolution of Kelvin-Helmholtz billows in nature and laboratory, Earth and Planetary Science Letters, vol.143, issue.1-4, pp.1-4, 1996.
DOI : 10.1016/0012-821X(96)00129-X

M. Debacq, V. Fanguet, J. P. Hulin, D. Salin, and B. Perrin, Self-similar concentration profiles in buoyant mixing of miscible fluids in a vertical tube, Physics of Fluids, vol.13, issue.11, pp.3097-3100, 2001.
DOI : 10.1063/1.1405442

URL : https://hal.archives-ouvertes.fr/hal-00984190

M. Debacq, J. P. Hulin, D. Salin, B. Perrin, and E. J. Hinch, Buoyant mixing of miscible fluids of varying viscosities in vertical tubes, Physics of Fluids, vol.15, issue.12, pp.3846-3855, 2003.
DOI : 10.1063/1.1624838

URL : https://hal.archives-ouvertes.fr/hal-00984188

A. Defina, F. M. Lanzoni, and . Susin, Stability of a stratified viscous shear flow in a tilted tube, Physics of Fluids, vol.11, issue.2, pp.344-355, 1999.
DOI : 10.1063/1.869884

A. O. Demuren and W. Rodi, Calculation of turbulence-driven secondary motion in non-circular ducts, Journal of Fluid Mechanics, vol.99, issue.-1, pp.189-222, 1984.
DOI : 10.1017/S0022112076002450

G. Dimonte, D. Youngs, A. Dimits, S. Weber, M. Marinak et al., A comparative study of the turbulent Rayleigh???Taylor instability using high-resolution three-dimensional numerical simulations: The Alpha-Group collaboration, Physics of Fluids, vol.16, issue.5, p.1668, 2004.
DOI : 10.1063/1.1688328

P. E. Dimotakis, The mixing transition in turbulent flows, Journal of Fluid Mechanics, vol.409, pp.69-98, 2000.
DOI : 10.1017/S0022112099007946

T. H. Ellison and J. S. Turner, Turbulent entrainment in stratified flows, Journal of Fluid Mechanics, vol.3, issue.03, pp.423-448, 1959.
DOI : 10.1007/BF02021146

H. J. Fernando, Turbulent Mixing in Stratified Fluids, Annual Review of Fluid Mechanics, vol.23, issue.1, pp.455-493, 1991.
DOI : 10.1146/annurev.fl.23.010191.002323

]. R. Fjørtof, Application of integrals theorems in deriving criteria of stability for laminar flows for the baroclinic circular vortex, Geofys. Publ. Oslo, vol.17, issue.6, pp.1-52, 1950.

M. Gibert, Convection thermique turbulente : panaches et fluctuations, 2007.
URL : https://hal.archives-ouvertes.fr/tel-00268361

Y. Hallez, mélange gravitationnel de fluides en géométrie confinée, 2007.

Y. Hallez and J. Magnaudet, Effects of channel geometry on buoyancy-driven mixing, Physics of Fluids, vol.20, issue.5, 2008.
DOI : 10.1063/1.2918379

P. Hazel, Numerical studies of the stability of inviscid stratified shear flows, Journal of Fluid Mechanics, vol.132, issue.01, pp.39-51, 1972.
DOI : 10.1017/S0022112072001065

C. M. Ho and P. Huerre, Perturbed Free Shear Layers, Annual Review of Fluid Mechanics, vol.16, issue.1, pp.365-422, 1984.
DOI : 10.1146/annurev.fl.16.010184.002053

J. Holmboe, On the behavior of symmetric waves in stratified shear layer, Geophys. Publ, vol.24, pp.67-113, 1962.

L. N. Howard, Note on a paper of John W. Miles, Journal of Fluid Mechanics, vol.10, issue.04, pp.509-512, 1961.
DOI : 10.1017/S0022112061000317

H. E. Huppert and J. E. Simpson, The slumping of gravity currents, Journal of Fluid Mechanics, vol.31, issue.04, pp.785-799, 1980.
DOI : 10.1146/annurev.fl.04.010172.002013

C. Härtel, E. Meiburg, and F. Necker, Analysis and direct numerical simulation of the flow at a gravity-current head. Part 1. Flow topology and front speed for slip and no-slip boundaries, J. Fluid. Mech, pp.418-189, 2000.

B. Kneller and C. Buckee, The structure and fluid mechanics of turbidity currents: a review of some recent studies and their geological implications, Sedimentology, vol.38, pp.62-94, 2000.
DOI : 10.1046/j.1365-3091.2000.047s1062.x

B. C. Kneller, S. J. Bennett, and W. D. Mccaffrey, Velocity and turbulence structure of density currents and internal solitary waves: potential sediment transport and the formation of wave ripples in deep water, Sedimentary Geology, vol.112, issue.3-4, pp.235-250, 1997.
DOI : 10.1016/S0037-0738(97)00031-6

P. K. Kundu and R. C. Beardsley, Evidence of a critical Richardson number in moored measurements during the upwelling season off northern California, Journal of Geophysical Research, vol.32, issue.C3, pp.643-655, 1991.
DOI : 10.1029/90JC02108

G. A. Lawrence, F. K. Browand, and L. G. Redekopp, The stability of a sheared density interface, Physics of Fluids A: Fluid Dynamics, vol.3, issue.10, pp.2360-2370, 1991.
DOI : 10.1063/1.858175

C. G. Lomas, Fundamentals of hot-wire anenometry, 1986.

J. W. Miles, On the stability of heterogeneous shear flows, Journal of Fluid Mechanics, vol.132, issue.04, pp.496-508, 1961.
DOI : 10.1063/1.1706011

P. Monti, G. Querzoli, A. Cenedese, and S. Piccinini, Mixing properties of a stably stratified parallel shear flow, Phys. Fluids, vol.19, issue.085104, 2007.

J. N. Moum, D. R. Cadlwell, and C. A. Paulson, Mixing in the equatorial surface layer and thermocline, Journal of Geophysical Research, vol.5, issue.C2, pp.2005-2021, 1989.
DOI : 10.1029/JC094iC02p02005

P. Odier, J. Chen, M. K. Rivera, and R. E. Ecke, Fluid Mixing in Stratified Gravity Currents: The Prandtl Mixing Length, Physical Review Letters, vol.102, issue.13, p.134504, 2009.
DOI : 10.1103/PhysRevLett.102.134504

URL : https://hal.archives-ouvertes.fr/hal-01141224

O. Pouliquen, J. M. Chomaz, and P. Huerre, Propagating Holmboe waves at the interface between two immiscible fluids, Journal of Fluid Mechanics, vol.88, issue.-1, pp.277-302, 1994.
DOI : 10.1175/1520-0469(1989)046 2.0.CO;2

M. Raffel, C. Willert, S. Wereley, and J. Kompenhans, Particle image velocimetry : a pratical guide, 2007.
DOI : 10.1007/978-3-662-03637-2

L. Rayleigh, On the Stability, or Instability, of certain Fluid Motions, Proc. Lond, pp.57-70, 1880.
DOI : 10.1112/plms/s1-11.1.57

K. I. Read, Experimental investigation of turbulent mixing by Rayleigh-Taylor instability, Physica D: Nonlinear Phenomena, vol.12, issue.1-3, 1984.
DOI : 10.1016/0167-2789(84)90513-X

O. Reynolds, An Experimental Investigation of the Circumstances Which Determine Whether the Motion of Water Shall Be Direct or Sinuous, and of the Law of Resistance in Parallel Channels, Philosophical Transactions of the Royal Society of London, vol.174, issue.0, pp.935-982, 1883.
DOI : 10.1098/rstl.1883.0029

J. W. Rottman and J. E. Simpson, Gravity currents produced by instantaneous releases of a heavy fluid in a rectangular channel, Journal of Fluid Mechanics, vol.10, issue.-1, pp.95-110, 1983.
DOI : 10.1017/S0022112068000133

W. Schmidt, Zur Mechanik der Bön, Z. Meteor, vol.28, pp.355-362, 1911.

D. H. Sharp, An overview of Rayleigh-Taylor instability, Physica D: Nonlinear Phenomena, vol.12, issue.1-3, 1984.
DOI : 10.1016/0167-2789(84)90510-4

J. O. Shin, S. B. Dalziel, and P. F. Linden, Gravity currents produced by lock exchange, Journal of Fluid Mechanics, vol.521, pp.1-34, 2004.
DOI : 10.1017/S002211200400165X

J. E. Simpson and R. E. Britter, The dynamics of the head of a gravity current advancing over a horizontal surface, Journal of Fluid Mechanics, vol.46, issue.03, pp.477-495, 1979.
DOI : 10.1256/smsqj.43503

J. Simpson and R. Britter, The dynamics of the head of a gravity current advancing over a horizontal surface, Journal of Fluid Mechanics, vol.46, issue.03, pp.477-495, 1979.
DOI : 10.1256/smsqj.43503

W. D. Smyth, G. P. Klaassen, and W. R. Peltier, Finite amplitude holmboe waves, Geophys . Astrophys. Fluid dyn, p.53, 1988.
DOI : 10.1080/03091928808213625

W. D. Smyth and J. N. Moum, Length scales of turbulence in stably stratified mixing layers, Physics of Fluids, vol.12, issue.6, pp.1327-1342, 2000.
DOI : 10.1063/1.870385

H. B. Squire, On the Stability for Three-Dimensional Disturbances of Viscous Fluid Flow between Parallel Walls, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.142, issue.847, pp.621-628, 1933.
DOI : 10.1098/rspa.1933.0193

M. W. Stacey and A. J. Bowen, The vertical structure of density and turbidity currents : theory and observations The vertical structure of turbidity currents and a necessary condition for self-maintenance, J. Geophys. Res. J. Geophys. Res, vol.9383, issue.C4 C4, pp.3528-3542, 1988.

E. J. Strang and H. J. Fernando, Entrainment and mixing in stratified shear flows, Journal of Fluid Mechanics, vol.428, pp.349-386, 2001.
DOI : 10.1017/S0022112000002706

J. A. Sutton, B. T. Fisher, and J. W. Fleming, A laser-induced fluorescence measurement for aqueous fluid flows with improved temperature sensitivity, Experiments in Fluids, vol.29, issue.5, pp.869-881, 2008.
DOI : 10.1007/s00348-008-0506-4

T. Séon, Du mélange turbulent aux courants de gravité en géométrie confinée, 2006.

T. Séon, J. P. Hulin, D. Salin, B. Perrin, and E. J. Hinch, Buoyant mixing of miscible fluids in tilted tubes, Physics of Fluids, vol.16, issue.12, pp.103-106, 2004.
DOI : 10.1063/1.1808771

T. Séon, J. Znaien, D. Salin, J. P. Hulin, E. J. Hinch et al., Transient buoyancy-driven front dynamics in nearly horizontal tubes, no. 123603, 2007.
DOI : 10.1063/1.2813581

S. Tait and C. Jaupart, Compositional convection in viscous melts, Nature, vol.338, issue.6216, pp.571-754, 1989.
DOI : 10.1038/338571a0

G. I. Taylor, The Instability of Liquid Surfaces when Accelerated in a Direction Perpendicular to their Planes. I, Proc. R. Soc. London, pp.192-196, 1950.
DOI : 10.1098/rspa.1950.0052

H. Tennekes and J. L. Lumley, A first course in turbulence, 1972.

S. A. Thorpe, A method of producing a shear flow in a stratified fluid, Journal of Fluid Mechanics, vol.3, issue.04, pp.693-704, 1968.
DOI : 10.1063/1.1706011

G. A. Voth, A. L. Porta, A. M. Crawford, J. Alexander, and E. Bodenschatz, Measurement of particle accelerations in fully developed turbulence, Journal of Fluid Mechanics, vol.469, pp.469-121, 2002.
DOI : 10.1017/S0022112002001842

R. A. Wooding, Instability of a viscous liquid of variable density in a vertical Hele-Shaw cell, Journal of Fluid Mechanics, vol.195, issue.04, pp.501-515, 1959.
DOI : 10.1017/S0022112060000256

J. D. Woods, Wave-induced shear instability in the summer thermocline, Journal of Fluid Mechanics, vol.121, issue.04, pp.791-800, 1968.
DOI : 10.1017/S0022112068001035

D. L. Youngs, Numerical simulation of turbulent mixing by Rayleigh-Taylor instability, Physica D: Nonlinear Phenomena, vol.12, issue.1-3, 1984.
DOI : 10.1016/0167-2789(84)90512-8

E. E. Zukoski, A review of flows driven by natural convection in adiabatic shafts, NIST report NIST-GCR, pp.95-679, 1995.