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See detailModelling of solar thermo-chemical system for energy storage in buildings
Skrylnyk, Alexandre; Courbon, Emilie; Frère, Marc et al

in Proceedings of Innostock 2012 - The 12th International Conference on Energy Storage - 16th to 18 th May 2012 (2012, May)

The goal of this paper is the demonstration of the methodological design principles within theoretical modelling of thermal heat storage apparatus and simulation of inter-seasonal heat storage system. The ... [more ▼]

The goal of this paper is the demonstration of the methodological design principles within theoretical modelling of thermal heat storage apparatus and simulation of inter-seasonal heat storage system. The designing procedure starts from the modelling of thermal plant behaviour, based on the simplifications in the basic hypothesis. Afterwards, a more detailed modelling, involving dynamic aspects and additional features of plant components, is presented. The accomplishment of the designing procedure follows by the optimisation of key parameters of the thermal storage plant. [less ▲]

Detailed reference viewed: 183 (12 ULg)
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See detailModelling of speleothems failure in the Hotton cave (Belgium). Is the failure earthquake induced?
Cadorin, Jean-François; Jongmans, Denis; Camelbeeck, Thierry et al

in Netherlands Journal of Geosciences - Geologie en Mijnbouw (2001), 80(3-4), 315-321

To provide quantitative information on the ground acceleration necessary to break speleothems, laboratory measurements on samples of stalagmite have been performed to study their failure in bending. Due ... [more ▼]

To provide quantitative information on the ground acceleration necessary to break speleothems, laboratory measurements on samples of stalagmite have been performed to study their failure in bending. Due to their high natural frequencies, speleothems can be considered as rigid bodies to seismic strong ground motion. Using this simple hypothesis and the determined mechanical properties (a minimum value of 0.4 MPa for the tensile failure stress has been considered), modelling indicates that horizontal acceleration ranging from 0.3 m/s(2) to 100 m/s(2) (0.03 to 10g) are necessary to break 35 broken speleothems of the Hotton cave for which the geometrical parameters have been determined. Thus, at the present time, a strong discrepancy exists between the peak accelerations observed during earthquakes and most of the calculated values necessary to break speleothems. One of the future research efforts will be to understand the reasons of the defined behaviour. It appears fundamental to perform measurements on in situ speleothems. [less ▲]

Detailed reference viewed: 97 (10 ULg)
See detailModelling of STAP signals for monostatic configurations
Verly, Jacques ULg

Scientific conference (2003)

Detailed reference viewed: 9 (0 ULg)
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See detailModelling of Strain Localisation: Mesh Enrichment with Spectral Overlay or with Interface Elements.
Charlier, Robert ULg; Wang, X. C.; Pierry, J.

in Proc. of the Europ-US Workshop on Fracture and Damage in Quasi Brittle Structures (1994, September)

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See detailModelling of stress field evolution in bimetallic rolling mill rolls during the manufacturing process
Gilles, G.; Neira Torres, I.; Tchuindjang, Jérôme Tchoufack ULg et al

in Proceedings of the 5th Conference on rolling mill rolls for metals processing Rolls 5 2015 (2015, April 22)

This paper presents a study of the phase transformation histories and stress profiles in a typical bimetallic roll subjected to a post-casting cooling followed by a tempering heat treatment. The ... [more ▼]

This paper presents a study of the phase transformation histories and stress profiles in a typical bimetallic roll subjected to a post-casting cooling followed by a tempering heat treatment. The simulations are performed using the non-linear finite element code "Lagamine" and a thermo-mechanical-metallurgical model able to take into account coupled effects. The sensitivity of the finite element results to some parameters which are not accurately identified is investigated. [less ▲]

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See detailModelling of the behaviour of a thin-walled channel cross section, using beam finite elements
Degée, Hervé ULg

in Proceedings of the Third International Conference on Thin-Walled Structures (2001)

This paper aims at presenting an approach allowing studying the behaviour of channel profiles through the use of beam finite elements. This approach can be considered as an interesting alternative to the ... [more ▼]

This paper aims at presenting an approach allowing studying the behaviour of channel profiles through the use of beam finite elements. This approach can be considered as an interesting alternative to the use of plate finite elements, for the modelling of structures made of thin-walled members. The main idea consists in superimposing on a classical beam global displacement field, a local field describing the deformation of the profile cross-section, when a local buckling or a distortional buckling occurs. In a first step, the behaviour of the constitutive walls of a profile is studied. These walls are there considered as single plates. Two main classes of walls are studied (internal walls, such as web, and free edge walls, such as flanges). Different kinds of stress state are also considered, in order to be able to model the behaviour under compression and/or bending. In a second step, these isolated wall models are assembled in order to build up a channel section profile. The approach is applied to the computation of critical buckling load under compression and in-plane bending. [less ▲]

Detailed reference viewed: 37 (2 ULg)
See detailModelling of the behaviour of column web panels in semi-rigid joints
Maquoi, René ULg; Jaspart, Jean-Pierre ULg

in Miscellany dedicated to the 65th birthday of Academician Professor Dr. Nikola HAJDIN (1988)

Detailed reference viewed: 23 (0 ULg)
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See detailModelling of the climate influence on the Black Grouse population dynamics in Europe
Loneux, Michèle ULg

in Cahiers d'Ethologie (2000), 20(2-3-4), 191-2162001

Detailed reference viewed: 15 (1 ULg)
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See detailModelling of the convective drying of resorcinol-formaldehyde resins: influence of the drying conditions on the induces stress tensor
Léonard, Angélique ULg; Crine, Michel ULg; Jomaa, Wahbi

in Farkas, Istvan (Ed.) Drying 2006, the Proceedings of the 15th International Drying Symposium,Budapest, Hungary, 20-23 August 2006, Vol. A (2006, August)

Detailed reference viewed: 17 (0 ULg)
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See detailModelling of the cooling of steel pieces
Habraken, Anne ULg; Bourdouxhe, M.

in Wrobel; Brebbia; Nowak (Eds.) Advanced Computational Method in Heat Transfer, Vol. 3 - Phase Change and Combustion simulation. Proceedings of the First International Conference (1990)

Detailed reference viewed: 7 (4 ULg)
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See detailModelling of the Excavation Damaged Zone in Opalinus Clay
Levasseur, Séverine ULg; Collin, Frédéric ULg; Charlier, Robert ULg

in Post-TIMODAZ International Workshop THM effects in clay host rocks for radioactive waste repositories (2012)

Detailed reference viewed: 17 (3 ULg)
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See detailModelling of the liquid distribution in a trickle flow packed column based upon X-ray tomography images
Toye, Dominique ULg; Marchot, Pierre ULg; Crine, Michel ULg et al

in Chemical Engineering Communications (1999), 175

X-ray tomography is used to characterise the liquid distribution in a 0.6 meter diameter and 2 meter height column filled with gas-liquid absorption polypropylene packing elements (Cascade Mini-Ring 1A ... [more ▼]

X-ray tomography is used to characterise the liquid distribution in a 0.6 meter diameter and 2 meter height column filled with gas-liquid absorption polypropylene packing elements (Cascade Mini-Ring 1A, Glitsch Benelux). The liquid holdup distribution is determined for liquid flowrates ranging from 1000 l/h to 6000 l/h, that correspond to superficial velocities ranging from 10(-3) to 6 10(-3) m/s, in several cross sections situated at different heights in the packed column. A characteristic length, corresponding to the smallest scale beyond which the packing properties may be supposed statistically homogenous and isotropic, as determined by Means of the autocorrelation function method applied to the images of the solid distribution. Both local and global liquid holdup measurements are satisfactorily modelled by means of a partial wetting model based on a probabilistic approach. [less ▲]

Detailed reference viewed: 24 (3 ULg)
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See detailModelling of the Marine Carbon Cycle
Munhoven, Guy ULg

Scientific conference (2012, October 17)

The lecture is subdivided into two parts. The first one deals with the essence of modelling, with the main principles and stages of development. The procedure of model development will be exemplified on ... [more ▼]

The lecture is subdivided into two parts. The first one deals with the essence of modelling, with the main principles and stages of development. The procedure of model development will be exemplified on the basis of a practical question. During this first part, a number of concepts and parameters that are important for the particular case of ocean carbon cycle modelling are already introduced. In the second part, we further deepen these. We explore the main physical and biogeochemical processes that are important to understand how the carbon cycle operates in the world ocean and provide insight into the way they are represented in different types of models currently used. [less ▲]

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See detailModelling of the micro-mechanical behaviour of steel sheets during deep-drawing
Duchene, Laurent ULg; Godinas, A.; Habraken, Anne ULg et al

in Duflou, J. R.; Geiger, M.; Kals, H. J. J. (Eds.) et al Proceedings of the 9th International Conference on Sheet Metal (2001)

This abstract presents a constitutive law based on Taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation ... [more ▼]

This abstract presents a constitutive law based on Taylor's model implemented in our non-linear finite element code LAGAMINE. The yield locus is only locally described and a particular interpolation method has been developed. This local yield locus model uses a discrete representation of the material's texture. The interpolation method is presented and a deep-drawing application is simulated in order to show up the influence of the texture evolution during forming processes. [less ▲]

Detailed reference viewed: 26 (6 ULg)
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See detailModelling of the Nonlinear End-Systolic Pressure-Volume Relation and Volume-at-Zero-Pressure in Porcine Experiments
Davidson, Shaun M.; Kannangara, D. Oliver; Pretty, Christopher G. et al

Poster (2015, August)

The End-Systolic Pressure-Volume Relation (ESPVR) is generally modelled as a linear relationship between P and V as cardiac reflexes, such as the baroreflex, are typically suppressed in experiments ... [more ▼]

The End-Systolic Pressure-Volume Relation (ESPVR) is generally modelled as a linear relationship between P and V as cardiac reflexes, such as the baroreflex, are typically suppressed in experiments. However, ESPVR has been observed to behave in a curvilinear fashion when cardiac reflexes are not supressed, suggesting the curvilinear function may be more clinically appropriate. Data was gathered from 41 vena cava occlusion manoeuvres performed experimentally at a variety of PEEPs across 6 porcine specimens, and ESPVR determined for each pig. An exponential model of ESPVR was found to provide a higher correlation coefficient than a linear model in 6 out of 7 cases, and a lower Akaike Information Criterion (AIC) value in all cases. Further, the exponential ESPVR provided positive V0 values in a physiological range in6 out of 7 cases analysed, while the linear ESPVR produced positive V0 values in only 3 out of 7 cases, suggesting linear extrapolation of ESPVR to determine V0 may be flawed. [less ▲]

Detailed reference viewed: 39 (3 ULg)
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See detailModelling of the Nonlinear End-Systolic Pressure-Volume Relation and Volume-at-Zero-Pressure in Porcine Experiments
Davidson, Shaun M.; Kannangara, D. Oliver; Pretty, Christopher G. et al

in Proceedings of the 37th International Conference of the IEEE Engineering in Medicine and Biology Society (2015, August)

The End-Systolic Pressure-Volume Relation (ESPVR) is generally modelled as a linear relationship between P and V as cardiac reflexes, such as the baroreflex, are typically suppressed in experiments ... [more ▼]

The End-Systolic Pressure-Volume Relation (ESPVR) is generally modelled as a linear relationship between P and V as cardiac reflexes, such as the baroreflex, are typically suppressed in experiments. However, ESPVR has been observed to behave in a curvilinear fashion when cardiac reflexes are not supressed, suggesting the curvilinear function may be more clinically appropriate. Data was gathered from 41 vena cava occlusion manoeuvres performed experimentally at a variety of PEEPs across 6 porcine specimens, and ESPVR determined for each pig. An exponential model of ESPVR was found to provide a higher correlation coefficient than a linear model in 6 out of 7 cases, and a lower Akaike Information Criterion (AIC) value in all cases. Further, the exponential ESPVR provided positive V0 values in a physiological range in6 out of 7 cases analysed, while the linear ESPVR produced positive V0 values in only 3 out of 7 cases, suggesting linear extrapolation of ESPVR to determine V0 may be flawed. [less ▲]

Detailed reference viewed: 22 (4 ULg)
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See detailModelling of the North-West African Upwelling
Elmoussaoui, Abdellali; Djenidi, Salim ULg; Kostianoy, Andrey

in Proceedings of the International Conference "Physical processes on the ocean shelf" (1996)

Detailed reference viewed: 11 (0 ULg)