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Peer Reviewed
See detailNumerical simulation and experimental validation of murine fracture healing
Geris, Liesbet ULg; Gerisch, A.; Maes, C. et al

in Proceedings of the fifth national day on biomedical engineering (2005)

Detailed reference viewed: 7 (0 ULg)
Peer Reviewed
See detailNumerical simulation and experimental validation of murine fracture healing
Geris, Liesbet ULg; Gerisch, A.; Maes, C. et al

in Proceedings of the European Conference on Mathematical and Theoretical Biology (2005)

Detailed reference viewed: 4 (0 ULg)
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Peer Reviewed
See detailNumerical simulation and performance assessment of an absorption solar air-conditioning system coupled with an office building
Thomas, Sébastien ULg; Andre, Philippe ULg

in Building Simulation: An International Journal (2012), 5(3), 243-255

To minimize environmental impact and CO2 production associated with air-conditioning, it is reasonable to evaluate the prospects of a clean energy source. Solar energy, via thermal collectors can provide ... [more ▼]

To minimize environmental impact and CO2 production associated with air-conditioning, it is reasonable to evaluate the prospects of a clean energy source. Solar energy, via thermal collectors can provide a part of the heating needs. Moreover, it can drive absorption chiller in order to satisfy the cooling needs of buildings. The objective of the work is to evaluate accurately the energy consumption of an air-conditioning system including a solar driven absorption chiller. The complete simulation environment includes the absorption chiller itself, the cooling tower, the solar collectors field, heater, storage devices, pumps, heating-cooling distribution, emission system and building. A decrease of primary energy consumption of 22% for heating and cooling is reached when using a solar air-conditioning system instead of classical heating and cooling devices. The modelling of each subsystem is detailed. TRNSYS software modular approach provides the possibility to model and simulate this complete system. [less ▲]

Detailed reference viewed: 102 (15 ULg)
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Peer Reviewed
See detailNumerical simulation and performance assessment of an absorption solar air-conditioning system coupled with an office building
Thomas, Sébastien ULg; Andre, Philippe ULg

Conference (2010, December)

To minimize environmental impact and CO2 production associated with air-conditioning, it is reasonable to evaluate the prospects of a clean energy source. Solar energy, via thermal collectors can provide ... [more ▼]

To minimize environmental impact and CO2 production associated with air-conditioning, it is reasonable to evaluate the prospects of a clean energy source. Solar energy, via thermal collectors can provide a part of the heating needs. Moreover, it can drive absorption chiller in order to satisfy the cooling needs of buildings. The objective of the work is to evaluate accurately the energy consumption of an air conditioning system including a solar driven absorption chiller. The complete simulation environment includes the absorption chiller itself, the cooling tower, the solar collectors field, heater, storage devices, pumps, heating-cooling distribution, emission system and building. The modelling of each subsystem is detailed. TRNSYS software modular approach provides the possibility to model and simulate this complete system. [less ▲]

Detailed reference viewed: 72 (10 ULg)
Peer Reviewed
See detailThe numerical simulation and physical model test of pipeline under water action
Marchal, Jean ULg; Yucheng, Li; Guozhang, Lai et al

in Proceedings of the Fourth Pacific/Asia Offshore Mechanics Symposium, Pusan, Korea (1996)

Detailed reference viewed: 33 (0 ULg)
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See detailNumerical simulation and Visualization of Material Flow in Friction Stir Welding via Particle Tracing
Dialami, Narges; Chiumenti, Michele; Cervera, Miguel et al

in Idelsohn, Sergio (Ed.) Numerical Simulations of Coupled Problems in Engineering (2014)

This work deals with the numerical simulation and material flow visualization of Friction Stir Welding (FSW) processes. The fourth order Runge- Kutta (RK4) integration method is used for the computation ... [more ▼]

This work deals with the numerical simulation and material flow visualization of Friction Stir Welding (FSW) processes. The fourth order Runge- Kutta (RK4) integration method is used for the computation of particle trajectories. The particle tracing method is used to study the effect of input process parameters and pin shapes on the weld quality. The results show that the proposed method is suitable for the optimization of the FSW process. [less ▲]

Detailed reference viewed: 33 (6 ULg)
Peer Reviewed
See detailNumerical simulation in cold rolling using adiabatic strip model : application to large roll deformation
STEPHANY, A.; Ponthot, Jean-Philippe ULg; LEGRAND, N.

in AUSTRIB 06 (2006)

Detailed reference viewed: 24 (3 ULg)
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Peer Reviewed
See detailNumerical Simulation of 1D Mixed Flow with Air/Water Interaction
Kerger, François ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Transaction: Engineering Sciences, volume 1, Computational Methods in Multiphase Flow V (2009, June)

Detailed reference viewed: 59 (19 ULg)
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See detailNumerical Simulation of a Conical Shape Made By Single Point Incremental
Velosa De Sena, José ULg; Guzmán Inostroza, Carlos Felipe ULg; Duchene, Laurent ULg et al

in Incremental sheet forming (2014, January 06)

Detailed reference viewed: 51 (22 ULg)
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Peer Reviewed
See detailNumerical Simulation of a Conical Shape Made by Single Point Incremental Forming
Velosa De Sena, José ULg; Duchene, Laurent ULg; Habraken, Anne ULg et al

in Incremental sheet forming (2014, May 08)

Detailed reference viewed: 38 (18 ULg)
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Peer Reviewed
See detailNumerical simulation of a dam-break flood wave propagation in Belgium
Pirotton, Michel ULg; Lejeune, André ULg

in Berga, L. (Ed.) New trends and Guidelines on Dam Safety (1998)

Detailed reference viewed: 17 (3 ULg)
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Peer Reviewed
See detailNumerical simulation of a full scale fire test on a loaded steel framework
Franssen, Jean-Marc ULg; Cooke, C. M. E.; Latham, D. J.

in Journal of Constructional Steel Research (1995), 35

A single bay single storey steel portal frame has been tested under fire conditions. It is here simulated using hte non linear computer code CEFICOSS. The elements have composite steel-concrete sections ... [more ▼]

A single bay single storey steel portal frame has been tested under fire conditions. It is here simulated using hte non linear computer code CEFICOSS. The elements have composite steel-concrete sections for the thermal analysis, but only the steel part of the sections is load bearing. [less ▲]

Detailed reference viewed: 26 (1 ULg)
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Peer Reviewed
See detailNumerical simulation of a pyramid steel sheet formed by single point incremental forming using solid-shell finite elements
Duchene, Laurent ULg; Guzmán Inostroza, Carlos Felipe ULg; Behera, Amar Kumar et al

in Key Engineering Materials [=KEM] (2013)

Single Point Incremental Forming (SPIF) is an interesting manufacturing process due to its dieless nature and its increased formability compared to conventional forming processes. Nevertheless, the ... [more ▼]

Single Point Incremental Forming (SPIF) is an interesting manufacturing process due to its dieless nature and its increased formability compared to conventional forming processes. Nevertheless, the process suffers from large geometric deviations when compared to the original CAD profile. One particular example arises when analyzing a truncated two-slope pyramid. In this paper, a finite element simulation of this geometry is carried out using a newly implemented solid-shell element, which is based on the Enhanced Assumed Strain (EAS) and the Assumed Natural Strain (ANS) techniques. The model predicts the shape of the pyramid very well, correctly representing the springback and the through thickness shear (TTS). Besides, the effects of the finite element mesh refinement, the EAS and ANS techniques on the numerical prediction are presented. It is shown that the EAS modes included in the model have a significant influence on the accuracy of the results. [less ▲]

Detailed reference viewed: 129 (61 ULg)
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See detailNumerical simulation of a quantum particle in a box
Hermann, Raphaël ULg

in Journal of Physics : A Mathematical & General (1997), 30(11), 3967-3975

It is shown how one can get numerical prediction of quantum mechanical particle behaviour without using the Schrodinger equation. The main steps of this development are the non-differentiability ... [more ▼]

It is shown how one can get numerical prediction of quantum mechanical particle behaviour without using the Schrodinger equation. The main steps of this development are the non-differentiability hypothesis, the equations of motion entailed by this hypothesis, and the numerical formulation of a simple one-dimensional problem: the particle in a box. [less ▲]

Detailed reference viewed: 23 (3 ULg)
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See detailNumerical Simulation of a Scroll Expander for Use in a Rankine Cycle
Lemort, Vincent ULg; Quoilin, Sylvain ULg; Lebrun, Jean ULg

(2008)

This paper presents two simulation models of scroll expanders for use in heat recovery Rankine cycle applications: a detailed reference model and a simplified model. The reference model associates a ... [more ▼]

This paper presents two simulation models of scroll expanders for use in heat recovery Rankine cycle applications: a detailed reference model and a simplified model. The reference model associates a detailed geometrical description of the expander to a thermodynamic modeling of the expansion process in the machine. Due to large computational effort, the reference model is not appropriate for simulation of the entire Rankine cycle system. The paper shows how a simplified model can be built from the reference model. This model involves a limited number of parameters, which describe the main features of the machine. An experimental study is carried out on a prototype of Rankine cycle working with HCFC-123. Based on detailed measurements, the validation of both models is conducted. It is found that both models are able to predict the mass flow rate, the delivered shaft power and the discharge temperature with a good accuracy. [less ▲]

Detailed reference viewed: 778 (38 ULg)
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See detailNumerical simulation of an arc column
Dauby, Bernard; Defise, Jean-Marc ULg; Legros, Willy ULg et al

in Proceedings of the 6th International Conference on Switching Arc Phenomena (1989)

Detailed reference viewed: 42 (7 ULg)
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Peer Reviewed
See detailNumerical simulation of an in-situ underground experiment for nuclear waste storage
Laloui, Lyesse; François, Bertrand ULg

in 12th IACMAG Conference (2008)

Following the need for understanding and quantifying the effect of temperature on the response of a candidate host formation for radioactive waste disposal, finite element modelling of an in-situ thermal ... [more ▼]

Following the need for understanding and quantifying the effect of temperature on the response of a candidate host formation for radioactive waste disposal, finite element modelling of an in-situ thermal experiment, named ATLAS, has been carried out. Based on a thermo-hydro-mechanical (THM) finite element approach including a consistent thermo-plastic constitutive model, it has been possible to reproduce the THM response of a clay formation submitted to in-situ thermal loading carried out in the underground research facility (HADES-URF) in Mol, Belgium. The results of the finite element modelling of the ATLAS experiment were compared with in-situ measurements and revealed the necessity to account for flow diffusion in all three directions through a 2D axisymmetric analysis. Finally, those results were interpreted in the light of elasto-thermoplasticity, which emphasizes the significant role of thermo-plastic processes in the global THM response of the clay formation. [less ▲]

Detailed reference viewed: 35 (0 ULg)
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See detailNumerical simulation of blaststructure interaction
Noels, Ludovic ULg; Radovitzky, Raul

Conference (2006)

Detailed reference viewed: 14 (1 ULg)
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Peer Reviewed
See detailNumerical simulation of bone regeneration in a bone chamber.
Geris, Liesbet ULg; Vandamme, K.; Naert, I. et al

in Journal of Dental Research (2009), 88(2), 158-63

While mathematical models are able to capture essential aspects of biological processes like fracture healing and distraction osteogenesis, their predictive capacity in peri-implant osteogenesis remains ... [more ▼]

While mathematical models are able to capture essential aspects of biological processes like fracture healing and distraction osteogenesis, their predictive capacity in peri-implant osteogenesis remains uninvestigated. We tested the hypothesis that a mechano-regulatory model has the potential to predict bone regeneration around implants. In an in vivo bone chamber set-up allowing for controlled implant loading (up to 90 microm axial displacement), bone tissue formation was simulated and compared qualitatively and quantitatively with histology. Furthermore, the model was applied to simulate excessive loading conditions. Corresponding to literature data, implant displacement magnitudes larger than 90 microm predicted the formation of fibrous tissue encapsulation of the implant. In contradiction to findings in orthopedic implant osseointegration, implant displacement frequencies higher than 1 Hz did not favor the formation of peri-implant bone in the chamber. Additional bone chamber experiments are needed to test these numerical predictions. [less ▲]

Detailed reference viewed: 13 (0 ULg)