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Affichage de 1251 à 1260 sur 2052

Article dans une revue

Scavenging Process Analysis in a 2-Stroke Engine by CFD Approach for a Parametric 0D Model Development

Stéphanie Cagin, Nachida Bourabaa, Eric Delacourt, Céline Morin, Xavier Fischer, Daniel Coutellier, Bertrand Carre, Sylvain Loumé

This paper presents a method to improve cylinder design of 2-stroke auto-ignition engine based on a CFD (Computational Fluid Dynamics) study of internal flows in the chamber and an unsteady global 0D parametric approach. In 2-stroke engine, scavenging process plays an important role regarding…

Journal of Applied Fluid Mechanics, 2016, 9 (1), pp.69-80. ⟨10.36884/jafm.9.SI1.26397⟩. ⟨hal-01330948⟩

Article dans une revue

Turbulent Plane Impinging Jet-Physical Insight and Turbulence Modeling

Mahmoud Charmiyan, Ahmed-Reza Azimian, Laurent Keirsbulck, Ebrahim Shirani, Fethi Aloui

A 3D numerical simulation using large eddy simulation (LES) method is performed for a submerged turbulent water slot jet impinging normally on a flat plate with a nozzle-to-plate distance of 10 jet width and a Reynolds number of 16000 and the results are compared with the existing experimental data…

Journal of Applied Fluid Mechanics, 2016, 9 (1), pp.11-17. ⟨10.36884/jafm.9.SI1.25825⟩. ⟨hal-03448221⟩

Article dans une revue

Increased antagonist muscle activity in cervical SCI patients suggests altered reciprocal inhibition during elbow contractions

Sylvain Cremoux, David Amarantini, Jessica Tallet, Fabien Dal Maso, Eric Berton

Objective: After spinal cord injury (SCI), the antagonist muscles activation is increased during voluntary contractions and reflex conditioning protocols. This increase can be the result of both muscle atrophy and reciprocal facilitation mechanism. It remains however unclear to what extent…

Clinical Neurophysiology, 2016, 127 (1), pp.629-634. ⟨10.1016/j.clinph.2015.03.016⟩. ⟨hal-01454735⟩

Article dans une revue

Experimental study on the stability of an impedance-type force-feedback architecture based on an augmented-state observer for a haptic system under time delay using a LMI approach

Quoc Viet Dang, Laurent Vermeiren, Antoine Dequidt, Michel Dambrine

One of the most important performance measures of a haptic interface may be characterized by its behaviour in the implementation of a virtual wall in terms of the biggest value of the virtual stiffness that still leaves the device stable. This value depends on many factors including time delays and…

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2016, 230 (1), pp.58-71. ⟨10.1177/0959651815611566⟩. ⟨hal-03426981⟩

Article dans une revue

Turbulent Flows Structures Crossing Conical Diffusers: Angle Effect Analysis using PIV Technique and POD for Post-Processing

Emna Berrich, Fethi Aloui, D Pierrat, L Gros, Anthony Couzinet, Jack Legrand

In this work, we investigated experimentally the hydrodynamics of flows crossing conical diffusers. On our previous work (Aloui et al., 2011), CFD turbulent models were validated for flows crossing the critical angle (2α=16°). Indeed, the PIV data base constructed was exploited to validate a…

Journal of Applied Fluid Mechanics, 2016, 9 (Special Issue 1), pp.19-29. ⟨10.36884/JAFM.9.SI1.25827⟩. ⟨hal-01349723⟩

Article dans une revue

A new reduced model of scavenging to optimize cylinder design

Stéphanie Cagin, Xavier Fischer, Eric Delacourt, Nachida Bourabaa, Céline Morin, Daniel Coutellier, Bertrand Carre, Sylvain Loumé

This paper presents the development of a new scavenging model to optimize cylinder design. The developed model explicitly integrates some of the cylinder’s design and environmental variables to describe flows during the scavenging process. Then, based on the reduced model, an optimization phase was…

SIMULATION: Transactions of The Society for Modeling and Simulation International, 2016, 92 (6), pp.507-520. ⟨10.1177/0037549716644516⟩. ⟨hal-01330975⟩

Article dans une revue

Experimental Study of Flow Control on Bluff Body using Piezoelectric Actuators

Nabil Tounsi, Rafika Mestiri, Laurent Keirsbulck, Hamid Oualli, Samir Hanchi, Fethi Aloui

Active flow control is experimentally investigated on a car-type bluff body. The actuation is based on a synthetic jet actuator placed at the top of the Ahmed body rear window. In the present paper, a synthetic jet characterization is presented, the frequencies and the optimal amplitudes with…

Journal of Applied Fluid Mechanics, 2016, 9 (2), pp.827-838. ⟨10.18869/acadpub.jafm.68.225.24488⟩. ⟨hal-03448166⟩

Article dans une revue

Integer programming based approaches for multi-trip location routing

Rita Macedo, Bruna Ramos, Cláudio Alves, José Manuel Valério de Carvalho, Said Hanafi, Nenad Mladenovic

The multi-trip location routing problem consists in selecting the depots to open and the routes that should be performed to serve a set of clients at minimum cost. The multi-trip variant considers the possibility for a vehicle to perform more than a single route during the planning period, and…

Computational Management Science, 2016, pp.79-90. ⟨10.1007/978-3-319-20430-7_11⟩. ⟨hal-03400736⟩

Article dans une revue

Résilience intégrée de la sécurité et de la sûreté des systèmes, Surveiller le système et alerter les opérateurs pour naviguer à vue

Jean-René Ruault, Christophe Kolski, Dominique Luzeaux, Frédéric Vanderhaegen, Wilson Goudalo

Tandis que des travaux sont menés pour traiter les risques de nature accidentelle (sûreté), en sûreté de fonctionnement et en ingénierie de la résilience, d’autres travaux sont menés en sécurité des systèmes d’information pour traiter des risques de nature malveillante (sécurité). L’article propose…

Génie logiciel : le magazine de l'ingénierie du logiciel et des systèmes, 2016, 117, pp.2-12. ⟨hal-03280585⟩

Article dans une revue

Modélisation 0D et caractérisation expérimentale d’une chaudière biomasse. Revista Termotehnica

Fateh Mameri, Eric Delacourt, Marc Lippert, Céline Morin

Le papier présente une étude expérimentale et la modélisation 0D du comportement dynamique d'une chaudière biomasse basée sur le formalisme Bond Graph. La chaudière biomasse utilisée dans cette étude est une chaudière automatique à pellets d’une puissance calorifique nominale de 30 kW avec un…

Revista Termotehnica, 2016. ⟨hal-03462126⟩