References of "Lebon, Georgy"
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See detailLinear and nonlinear thermal instability of a rotating saturated porous medium heated from below
Desaive, Thomas ULg; Hennenberg, M.; Lebon, Georgy ULg

in 1st international conference on applications of porous media (2002)

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See detailGeneralized Fourier equations and thermoconvective instabilities
Dauby, Pierre ULg; Nelis, M.; Lebon, Georgy ULg

in Revista Mexicana De Fisica (2002), 48(Suppl. 1), 57-62

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See detailCoupled capillary and gravity-driven instability in a liquid film overlying a porous layer
Desaive, Thomas ULg; Lebon, Georgy ULg; Hennenberg, M.

in Physical Review E (2001), 64(6, Pt 2), 66304

In this work, we study the problem of onset of thermal convection in a fluid layer overlying a porous layer, the whole system being heated from below. We use Brinkman's model to describe the porous medium ... [more ▼]

In this work, we study the problem of onset of thermal convection in a fluid layer overlying a porous layer, the whole system being heated from below. We use Brinkman's model to describe the porous medium and determine the corresponding linear stability equations. The eigenvalue problem is solved by means of a modified Galerkin method. The behavior of the critical wave number and temperature gradient is discussed in terms of the various parameters of the system. We also emphasize the influence of the boundary conditions at the upper surface of the fluid layer; in particular, we examine the role of a free surface whose surface tension is temperature dependent (Marangoni effect). Comparison with earlier works is also made. [less ▲]

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See detailRole of interface deformations in Benard-Marangoni instability
Lebon, Georgy ULg; Dauby, Pierre ULg; Regnier, Vincent

in Acta Astronautica (2001), 48(5-12), 617-627

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See detailLinear and nonlinear Rayleigh-Bénard-Marangoni instability with surface deformations
Regnier, Vincent; Dauby, Pierre ULg; Lebon, Georgy ULg

in Physics of Fluids (2000), 12

Thermoconvective instabilities in a bilayer liquid-gas system with a deformed interface are investigated. In the first part of the work which is devoted to a linear approach, emphasis is put on the role ... [more ▼]

Thermoconvective instabilities in a bilayer liquid-gas system with a deformed interface are investigated. In the first part of the work which is devoted to a linear approach, emphasis is put on the role of the upper gas layer on the instability phenomenon. The condition to be satisfied by the gas to remain purely conductive is established. The so-called Oberbeck-Boussinesq approximation is discussed and its range of validity is carefully defined. Instead of the classical Rayleigh, Marangoni, crispation, and Galileo numbers, new dimensionless groups are introduced. A critical comparison with several previous works is made. The nonlinear analysis consists in studying the different convective patterns which can appear above the threshold. Particular attention is devoted to the shape of the interface and the so-called ``hybrid'' relief. The amplitude of the deformation is also determined and comparison with experimental data is discussed. [less ▲]

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See detailSpecific topics on Bénard-Marangoni instabilities
Desaive, Thomas ULg; Dauby, Pierre ULg; Lebon, Georgy ULg et al

in Henry, Daniel; Bergeon, Alain (Eds.) Proceedings of the ERCOFTAC and EUROMECH Colloquium 383 on Continuation Methods in Fluid Dynamics (2000)

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See detailCoupled capillary and gravity-driven instabilities in a bilayer porous liquid system
Desaive, Thomas ULg; Bragard, J.; Lebon, Georgy ULg et al

in 52nd annual meeting of the division of fluid dynamics of the American physical society (1999)

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See detailExtended Irreversible Thermodynamics Revisited ( 1988-1998)
Jou, David; Casas-Vazquez, Jose; Lebon, Georgy ULg

in Report in progress in physics (1998), 62

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See detailLinear Benard-Marangoni instability in rigid circular containers
Dauby, Pierre ULg; Lebon, Georgy ULg; Bouhy, E.

in Physical Review. E : Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics (1997), 56(1), 520-530

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See detailThermoconvective Instability in Circular Rigid Vessels
Dauby, Pierre ULg; Lebon, Georgy ULg; Colinet, P.

in Proceedings of the International Conference of Fluid and Thermal Energy Conversion ’97 (1997)

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See detailSquare cells in gravitational and capillary thermoconvection
Regnier, Vincent; Dauby, Pierre ULg; Parmentier, P. et al

in Physical Review. E : Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics (1997), 55(6), 6860-6865

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See detailRolls, Hexagons and Squares in Bénard-Marangoni Instability
Dauby, Pierre ULg; Regnier, V.; Parmentier, P. et al

in Mir, A.; Zrikem, Z. (Eds.) Proceedings of the International Thermal Energy and Environment Congress (ITEEC) 97 (1997)

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See detailBenard-Marangoni instability in rigid rectangular containers
Dauby, Pierre ULg; Lebon, Georgy ULg

in Journal of Fluid Mechanics (1996), 329

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See detailNonlinear Marangoni Instability in 3D Rigid Boxes
Dauby, Pierre ULg; Lebon, Georgy ULg; Colinet, P.

in Greco, A. M.; Rionero, S. (Eds.) Supplemento ai rendiconti del Circolo matematico di Palermo « The Proceedings of the VIII International Conference on Waves and Stability in continuous Media, Palermo, Italy, oct. 9-14, 1995 », SERIE II – NUMERO 45– ANNO 1996, Palermo, Via Archirafi 34, Italy (1996)

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See detailInfluence of surface deformability on weakly nonlinear Marangoni instability
Slavtchev, S. G.; Dauby, Pierre ULg; Lebon, Georgy ULg et al

in Viviani, A. (Ed.) Proceedings of the Second European Symposium. Fluids in Space, Napoli, April 22-26, 1996 (1996)

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See detailFinite-amplitude regimes of the short-wave Marangoni-Benard convective instability.
Colinet, Pierre; Legros, Jean-Claude; Kamotani, Y. et al

in Physical Review. E : Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics (1995), 52(3), 2603-2616

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See detailBénard-Marangoni instability in a viscoelastic Jeffreys' fluid layer
Lebon, Georgy ULg; Parmentier, Patrice; Teller, O. et al

in Rheologica Acta (1994), 33(4), 257-266

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See detailThermocapillary and Thermogravitational instabilities in rigid rectangular boxes
Dauby, Pierre ULg; Lebon, Georgy ULg

in Rionero, S.; Ruggeri, T. (Eds.) Proceedings of the VII International Conference on Waves and Stability in Continuous Media, Bologna (Italy), october 4-9, 1993 (1994)

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See detailOn Kinetic Theory Justifications of Extended Irreversible Thermodynamics
Lebon, Georgy ULg; Dauby, Pierre ULg; Grmela, M.

in Shizgal, B. D.; Weaver, D. P. (Eds.) Rarefied Gaz Dynamics : Experimental Techniques and Physical Systems (1994)

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See detailCoupled buoyancy and thermocapillary convection in a viscoelastic Maxwell fluid
Dauby, Pierre ULg; Parmentier, P.; Lebon, Georgy ULg et al

in Journal of Physics : Condensed Matter (1993), 5

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