Articles techniques et présentations

Recherche rapide

Ressources

Livres Blancs

Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

Terme recherché:

Optimization of Welding Parameters using 3D Heat and Fluid Flow Modeling of Keyhole Laser Welding

S. Gaied [1], M. Courtois [2], M. Carin [2], P. Le Masson [2]
[1] ArcelorMittal Global R&D, Montataire, France
[2] LUniv. Bretagne-Sud, Lorient, France

A Laser-welded blank (LWB) consists of steels of different thicknesses and/or grades welded together to produce a single blank prior to the forming process. LWB are mostly used in the automotive field where the high productivity of the laser welding process is an advantage. Numerical ... En savoir plus

Modelling Thermal Capillary Effects and Flow in the Molten Pool During Selective Laser Melting

Habimana Jean Willy [1],
[1] National University of Singapore, Singapore

Laser additive manufacturing has become an interesting field of engineering which is revolutionizing industrial processes. Selective Laser melting (SLM) is a widely used additive manufacturing technique for 3D printing of metal structures. This process has a particular complexity in ... En savoir plus

Glass Transition of ABS in 3D Printing

M. Rahman [1], N. R. Schott [2], L. K. Sadhu [3],
[1] North South University, Dhaka, Bangladesh
[2] Department of Plastics Engineering, University of Massachusetts - Lowell, Lowell, MA, USA
[3] IRays Teknology Ltd., Dhaka, Bangladesh

In a commercial 3D printer head, plastic ribbon passes through a hot nozzle of an extruder to dispense liquid plastic droplets to construct the model. In this paper a 2D axisymmetric model of a 3D head is considered to study the secondary transition change from below the glass ... En savoir plus

2D Axial-Symmetric Model For Fluid Flow And Heat Transfer In The Melting And Resolidification Of A Vertical Cylinder

S. Morville[1], M. Carin[1], M. Muller[2], M. Gharbi[2], P. Peyre[2], D. Carron[1], P. Le Masson[1], and R. Fabro[2]
[1]Laboratoire LIMATB, Université de Bretagne Sud, Lorient , France
[2]Laboratoire PIMM, Arts et Métiers ParisTech, Paris, France

Laser direct deposition is a process, different from molding or machining, which allows the producing of fully densified and operational components. This technique involves injecting metal powder through a coaxial nozzle into a melt pool obtained by a moving laser beam. The final object ... En savoir plus

Thermo-fluiddynamic Modeling of Laser Beam-Matter Interaction in Selective Laser Melting

K.-H. Leitz [1], P. Singer [1], A. Plankensteiner [1], B. Tabernig [1], H. Kestler [1], L. S. Sigl [1],
[1] Plansee SE, Reutte, Austria

Selective Laser Melting (SLM) offers great potential for future manufacturing technology. In order to extend its applicability for the processing of high melting materials like molybdenum fundamental process understanding is required. This can be obtained by multiphysical simulations ... En savoir plus

A Numerical Heat Transfer Analysis on an Implantable Phase-Change Actuated Peristaltic Micropump

F. Forouzandeh [1], D. A. Borkholder [1],
[1] Rochester Institute of Technology, Rochester, NY, USA

Advances in protective and restorative biotherapies have created new opportunities to address vestibular disorders, deafness, and noise induced-, sensorineural-, and age-related hearing loss. Controllable and implantable drug delivery micropumps are essential for therapy development in ... En savoir plus

纤维增强复合材料渗流过程的研究模拟

沈诗怡 [1], 王波 [1],
[1] 上海大学

连续纤维增强金属基复合材料（Continuous Fiber Reinforcement Metal Matrix Composites）因其优异的性能而在汽车领域航空航天领域、兵器武装领域及电子及光学领域备受关注。但是，目前其制备工艺的不成熟，使得产品存在较多的空隙缺陷，对材料性能造成不良的影响，而压力浸渗制备的FRM相对致密、缺陷少而具有广阔的发展前景。本文以FRM的压力浸渗制备工艺为研究对象，利用Comsol Multiphysics软件进行二维数值模拟计算，分别研究了流体动力粘度、入口压力以及纤维排布方式等对渗流过程的影响，并判断出孔隙高频出现的区域 ... En savoir plus

Optimization of an Explosive Mixture Cooling Process Including a Phase Change

J. D. Wheeler [1], P. Namy [1], C. Coulouarn [2], E. Benade [2],
[1] SIMTEC, Grenoble, France
[2] TDA Armements, LA-FERTÉ-SAINT-AUBIN, France

In the scope of improvement of the industrial “ammunition cooling” process, a COMSOL Multiphysics® model is developed to transfer an existing cooling process. A device filled with a liquid explosive mixture is placed in an apparatus which controls the environment temperature. This ... En savoir plus

Simulation and Visualisation of Shielding Gas Flows During Wire-Arc Additive Manufacture

I. Bitharas [1], A. Moore [1],
[1] Heriot-Watt Univerisity, Edinburgh, UK

One of the challenges associated with the wire-arc additive manufacture (WAAM) of metals is to provide adequate inert gas shielding, not only for the molten pool, but also for the long reactive metal surface that follows it. For Ti-6Al-4V, it has been shown that increased levels of ... En savoir plus

Numerical Analysis of the Phase Change in High Power Latent Heat Storages with 3D Wire Structures

A. Schlott [1], J. Hörstmann [2], O. Andersen [1], J. Meinert [1],
[1] Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Branch Lab Dresden, Dresden, Germany
[2] Denso Automotive Deutschland GmbH, Department Heat Exchanger Application, Eching, Germany

Latent heat storage devices use the melting enthalpy of a so-called phase change material (PCM) to store thermal energy. Open porous metals, such as 3D wire structures, allow the design of systems with tailored storage capacity and power. A geometric unit cell was identified, modelled ... En savoir plus

Premier

91–100 of 183

Dernier