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Affichage de 1251 à 1260 sur 2052

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

Relationship between brightness and roughness of polypropylene abraded surfaces

Adrien van Gorp, Maxence Bigerelle, Denis Najjar

This article proposes to analyze the relation between gloss and roughness of surfaces of polypropylene samples abraded at different magnitudes. Experiments consist of mechanical polishing at different grades, roughness profiles measurement, and specular light reflectometry with three incidence…

Polymer Engineering and Science, 2016, 56 (1), pp.103 - 117. ⟨10.1002/pen.24197⟩. ⟨hal-04530473⟩

Article dans une revue

Relationship between brightness and roughness of polypropylene abraded surfaces

Adrien van Gorp, Maxence Bigerelle, Denis Najjar

This article proposes to analyze the relation between gloss and roughness of surfaces of polypropylene samples abraded at different magnitudes. Experiments consist of mechanical polishing at different grades, roughness profiles measurement, and specular light reflectometry with three incidence…

Polymer Engineering and Science, 2016, 56 (1), pp.103 - 117. ⟨10.1002/pen.24197⟩. ⟨hal-04530638⟩

Article dans une revue

A general variable neighbourhood search for the multi-product inventory routing problem

Anis Mjirda, Bassem Jarboui, Jelena Mladenović, Christophe Wilbaut, Said Hanafi

The inventory routing problem (IRP) deals with the study of the inter-relationship between two important activities in the supply chain: transportation of commodities and inventory management. In this paper, we study a variant of the multi-product IRP and we propose a general variable neighbourhood…

IMA Journal of Management Mathematics, 2016, 27 (1), pp.39-54. ⟨10.1093/imaman/dpu020⟩. ⟨hal-03400808⟩

Article dans une revue

A quasi-static 3D model of wheelchair propulsion

Isam Hilal, Philippe Pudlo

The use of theoretical models is an alternative for studying the configuration of manual wheelchairs. Richter and Morrow proposed one of the theoretical models used to study propulsion in manual wheelchairs. However this analytical model is limited to use in the sagittal plane. This article…

International Journal of Human Factors Modelling and Simulation, 2016, 5 (2), pp.136-163. ⟨10.1504/IJHFMS.2015.075361⟩. ⟨hal-03426952⟩

Article dans une revue

Two-stage heuristic algorithm for the large-scale capacitated location routing problem

Oualid Guemri, Bouziane Beldjilali, Abdelghani Bekrar, Ghalem Belalem

In this paper, we treat the Capacitated Location-Routing Problem(CLRP).TheCLRPwhichcombinesthefacilitylocationproblemwiththeroutingproblem is one of the most important problems in combinatorial optimizationﬁeld. In this study, we propose a new Two Stage Heuristic (2-SH) algorithmfor the large-scale…

International Journal of Mathematical Modelling and Numerical Optimisation, 2016, 7 (1), pp.97. ⟨10.1504/IJMMNO.2016.074375⟩. ⟨hal-03428140⟩

Article dans une revue

Improvement of a non energy-consuming system: A gamma Stirling engine

Ramla Gheith, Fethi Aloui, Sassi Ben Nasrallah

In this paper, the classical adiabatic model was chosen. The assumption of perfect gas working fluid was replaced by that of a real gas working fluid. This last assumption was defined by the van der Waals state equation. A Gamma type Stirling engine functioning with a maximum filling pressure of 10…

Environmental Engineering and Management Journal, 2016, 15 (1), pp.133-141. ⟨10.30638/eemj.2016.015⟩. ⟨hal-03448372⟩

Article dans une revue

Prediction of performance of Stirling engine using least squares support machine technique

Mohammad Hossein Ahmadi, Mohammad Ali Ahmadi, Milad Ashouri, Astarei Razie, Roghayeh Ghasempour, Fethi Aloui

Stirling engine is an environmental friendly heat engine which could reduce CO2 emission through combustion process. Output power, shaft torque and brake specific fuel consumption represent the efficiency and robustness of the Stirling engines. The present research tries to determine the three…

Mechanics & Industry, 2016, 17 (5), pp.506. ⟨10.1051/meca/2015098⟩. ⟨hal-03448100⟩

Article dans une revue

Modelling Laminate Failure in Composite Materials for Automotive Applications

David Moncayo, F. Köster, Pedro P Camanho, Daniel Coutellier, S. Hartmann

In order to capture the complexity of material failure it is necessary to understand that the performance of FE models depends on a fair use and a fair modeling of composite materials. Based on previous research works, the prognosis capabilities of the current material definitions in LS-DYNA will…

FEA Information Engineering Journal, 2016, 5 (6), pp.1-24. ⟨hal-03445539⟩