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See detailHydrodynamic and hydrodispersive behaviour of variably saturated chalk : a field investigation
Brouyère, Serge ULg

Conference (2003, March 19)

The presentation described field investigations on contaminant transport across unsaturated chalk rocks, including tracer tests

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See detailHydrodynamic Approaches to Design Balancing Ponds
Pirotton, Michel ULg

in Marshall, English; Andras, Szollosi-Nagy (Eds.) Managing Water: Coping with Scarcity and Abundance (1997)

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See detailHydrodynamic forces acting on vertically translating bodies in free surface water
Kerger, François ULg; Detrembleur, Sylvain ULg; Archambeau, Pierre ULg et al

in WIT Transactions on The Built Environment, Vol 105, Fluid Structure Interaction V (2009, May)

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See detailHydrodynamic modelling, damage evaluation and technical adaptation measures
Dewals, Benjamin ULg

Conference (2008, January 10)

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See detailHydrodynamic models of the West European Shelf
Djenidi, Salim ULg; Nihoul, Jacques ULg; Ronday, François ULg

in Phys. of Shallow Bays, Estuaries and Cont. Shelves (1986)

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See detailHydrodynamic simulations of galaxy formation
Thoul, Anne ULg

in Dark Matter (1995, July)

We have developed an accurate, one-dimensional, spherically symmetric, Lagrangian hydrodynamics/gravity code, designed to study the effects of radiative cooling and photo-ionization on the formation of ... [more ▼]

We have developed an accurate, one-dimensional, spherically symmetric, Lagrangian hydrodynamics/gravity code, designed to study the effects of radiative cooling and photo-ionization on the formation of protogalaxies. We examine the ability of collapsing perturbations to cool within the age of the universe. In contrast to some studies based on order-of-magnitude estimates, we find that cooling arguments alone cannot explain the sharp upper cutoff observed in the galaxy luminosity function. We also look at the effect of a photoionizing background on the formation of low-mass galaxies. [less ▲]

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See detailHYDRODYNAMIC SIMULATIONS OF GALAXY FORMATION .1. DISSIPATION AND THE MAXIMUM MASS OF GALAXIES
Thoul, Anne ULg; WEINBERG, D. H.

in Astrophysical Journal (1995), 442(2), 480-491

We describe an accurate, one-dimensional, spherically symmetric Lagrangian hydrodynamics/gravity code, designed to study the effects of radiative cooling and photoionization on the formation of ... [more ▼]

We describe an accurate, one-dimensional, spherically symmetric Lagrangian hydrodynamics/gravity code, designed to study the effects of radiative cooling and photoionization on the formation of protogalaxies. The code can treat an arbitrary number of fluid shells (representing baryons) and collisionless shells (representing cold dark matter). As a test of the code, we reproduce analytic solutions for the pulsation behavior of a poly-trope and for the self-similar collapse of a spherically symmetric, cosmological perturbation. In this paper we concentrate on the effects of radiative cooling, examining the ability of collapsing perturbations to cool within the age of the universe. In contrast to some studies based on order-of-magnitude estimates, we find that cooling arguments alone cannot explain the sharp upper cutoff observed in the galaxy luminosity function. [less ▲]

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See detailHydrodynamic simulations of galaxy formation .2. Photoionization and the formation of low-mass galaxies
Thoul, Anne ULg; Weinberg, D. H.

in Astrophysical Journal (1996), 465(2), 608-616

Photoionization by the high-redshift ultraviolet radiation background heats low- density gas before it falls into dark matter potential wells, and it eliminates the neutral hydrogen and singly ionized ... [more ▼]

Photoionization by the high-redshift ultraviolet radiation background heats low- density gas before it falls into dark matter potential wells, and it eliminates the neutral hydrogen and singly ionized helium that dominate cooling of primordial gas at temperatures of 10(4)-10(5) K. We investigate the influence of photoionization on galaxy formation using high-resolution simulations with a one-dimensional, spherically symmetric, Lagrangian hydrodynamics/gravity code. We find that the presence of a photoionizing background suppresses the formation of galaxies with circular velocities v(circ) less than or similar to 30 km s(-1) and substantially reduces the mass of cooled baryons in systems with circular velocities up to v(circ) similar to 50 km s(-1). Above v(circ) similar to 75 km s(-1), photoionization has no significant effect. Photoionization exerts its influence primarily by heating gas before collapse; the elimination of line cooling processes is less important. We discuss the implications of these results for hierarchical theories of galaxy formation. [less ▲]

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See detail"Hydrodynamic Stress of Cellulases in a Bioreactor"
Meurisse, E.; Evrard, J. F.; Denoo, O. et al

in Mededelingen - Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent (1993), 58(4b), 1981-1983

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See detailHydrodynamic stress of Dunaliella tertiolecta.
Rikir, R.; Spoiden, J. F.; Thonart, Philippe ULg

Poster (1990, July)

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See detailHydrodynamic systems used to assess surface fouling, soil adherence and cleaning in laboratory installations.
Detry, J. G.; Deroanne, Claude; Sindic, Marianne ULg

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2009)

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See detailHydrodynamical and ecosystem modelling on an IBM SP/2
Beckers, Jean-Marie ULg; Grégoire, Marilaure ULg; Rixen, M.

in Procedings of the second annual MMARIE (1997)

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See detailHydrodynamical and ecosystem modelling on an IBM SP/2 (part II)
Elmoussaoui, A.; Grégoire, Marilaure ULg; Nomérange, P. et al

in Procedings of the third annual MMARIE meeting (1998)

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See detailHydrodynamical and ecosystem processes in ice-covered seas of the Southern and Northern Hemispheres
Goffart, Anne ULg; Hecq, Jean-Henri ULg

in Journal of Marine Systems (2000), 27

Preface of the 30th International Liège Colloquium on Ocean Hydrodynamics Liège, Belgium (May 4–8 1998) : Hydrodynamical and ecosystem processes in ice-covered seas of the Southern and Northern ... [more ▼]

Preface of the 30th International Liège Colloquium on Ocean Hydrodynamics Liège, Belgium (May 4–8 1998) : Hydrodynamical and ecosystem processes in ice-covered seas of the Southern and Northern Hemispheres. Issue of JMS edited by Anne Goffart and Jean-Henri Hecq. [less ▲]

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See detailHydrodynamics of River Networks Computed with Two-dimensional Unsteady Flow Equations : Comparison ofNumerical Methods
Pirotton, Michel ULg; Pochet, Thierry

in Russel, T. F.; Ewing, R. E.; Brebbia, C. A. (Eds.) et al Computational Methods in Water Resources IX, Vol 1 : Numerical Methods in Water Resources (1992)

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See detailThe hydrodynamics of the Western Mediterranean Sea
Euromodel group; Nihoul, Jacques ULg; Beckers, Jean-Marie ULg et al

Report (1995)

Euromodel is devoted to process studies in relation to the description, understanding and simulation of the seasonal and mesoscale variability of the general circulation of the Western Mediterranean. Deep ... [more ▼]

Euromodel is devoted to process studies in relation to the description, understanding and simulation of the seasonal and mesoscale variability of the general circulation of the Western Mediterranean. Deep water formation drives the large cyclonic gyre observed in the northern basin. Some seasonal and mesoscale characteristics of the Northern, Tyrrhenian and Western Corsican Currents are specifies. The flow throuch the strait of Gibraltar is not hydraulically controlled. Potential vorticity conservation and changes in the meridional pressure gradients explain the formation of the western Alboran Sea gyre. Cyclonic eddies at its periphery are observed and modelled. The Almeria-Oran jet-front system is described in terms of geostrophic adjustment of Modified Atlantic Water and Mediterranean Water. Algerian eddies are linked to baroclinic instability of the current. A cyclonic circulation around the continental slope in the whole western basin is observed at depth. Upper ocean mesoscale variability is related to downward penetration of near-inertial motions as observed near the Catalan front. In the Balearic Sea, spatial and temporal variability of two shelf / slope fronts influences the large scale dynamics. The MAST 1 phase of Euromodel, initiales a numerical simulation of the Western Mediterranean : the sole forcing by the density gradients throuh the straites of Gibraltar and Sicily quaalitatively reproduces the basin scale cycloni surface and intermediate flows and the coastal currents. [less ▲]

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See detailHydrodynamique et Architecture Navale
Hage, André; Rigo, Philippe ULg; Lapy, Matthieu ULg

in Journées scientifiques et techniques du CETMEF 2012 (2012, December 05)

State of art en matière d'hydrodynamique navale et architecture navale pour la navaigatio nfluviale

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