Numerical Modelling of a Free-Burning Arc in Argon. A Tool for Understanding the Optical Mirage Effect in a TIG Welding Device
J-M. Bauchire, E. Langlois-Bertrand, and C. de Izarra
GREMI, CNRS, Université d’Orléans, Orléans, France
In this paper, we present the numerical modelling of a free-burning arc and its application to the understanding of optical mirage effect which could occur in a TIG (Tungsten Inert Gas) device used in welding applications.
Design and Simulation of a Microscale Magnetophoretic Device for the Separation of Nucleated Fetal Red Blood Cells from Maternal Blood
G. Schiavone, D.M. Kavanagh, and M.P.Y Desmulliez
Politecnico di Torino, Torino, Italy
MIcroSystems Engineering Centre, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, Scotland, United Kingdom
Intense research has been carried out into methods that aim at harvesting fetal cells from maternal blood as substitutes to amniocentesis and chorionic villus sampling. This work focuses on the separation of fetal nucleated red blood cells from the maternal circulation based on their intrinsic magnetic properties. The design and simulation of a magnetophoretic separator is described, as it will ...
N. Delmonte, M. Bernardoni, P. Cova, and R. Menozzi
Dipartimento di Ingegneria dell’Informazione, University of Parma, Parma, Italy
This work describes a way to apply 3D Finite Element Analysis (FEA) to the thermal design of power electronic modules using simplified geometry models of the system components. The method here presented can overcome the problem of solving equation systems with a very high number of Degrees Of Freedom (DOF) due to complex geometry of a power module.
A. Ricci and E. Giuri
Materials and Microsystems Laboratory (CHI-Lab), Politecnico di Torino, Torino, Italy
Cantilever vibration in fluid environment is probably one of the most common Fluid Structure Interaction problems in the field of Micro/Nano Electro Mechanical Systems. Usually the effect of fluid on cantilever oscillation is characterized in terms of mode resonance frequencies and quality factors (Qs). In this work a new approach to the above FSI problem is proposed: modes Q factors and ...
J. Acuna and B. Palm
Department of Energy Technology, KTH, Stockholm, Sweden
The most common way to exchange heat with the bedrock in Ground Source Heat Pump (GSHP) applications is circulating a fluid through a U-formed closed loop in vertical boreholes drilled several tenths of meters into the ground. This study presents and compares the results of eight cross sectional U-pipe Borehole Heat Exchanger configurations. Values from recent experimental temperature ...
J. Rasmussen, M.S. Enevoldsen, J. Thyregod, and K-A. Henneberg
Department of Electrical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark
COOK Medical Europe, Bjaeverskov, Denmark
This work presents new Fluid-Structure Interaction (FSI) models in both 2D and 3D of the effect of using vascular stents as treatment of cerebral berry aneurysms. The stent is positioned inside the cerebral artery covering the neck of the aneurysm. The stent is expected to alter the blood flow into the aneurysm such that the blood coagulates due to low blood velocity, and rupture of the aneurysm ...
Multiphase, Dual Polymer Injection Molding and Cooling of an Open Cavity to Form both Distinct and Graduated Material Properties within a Complex Three-Dimensional Body
Continuum Blue Ltd, Forest Row, United Kingdom
With the advancement of medical devices and implants, many now require more advanced nonlinear, hyper-elastic materials such as elastomers to be extensively utilized in the body. This combined with the need to allow for considerably different, varying and graduated material responses within the three-dimensional device, poses a difficult challenge to manufacturing an elastomeric implant in a ...
H.A. Ghali and H.A. Rahman
Electrical Engineering Department British University in Egypt “BUE”, El Sherouk City, Egypt
A teaching platform that could be used to help students understand concepts such as; flux linking and mutual inductance has been developed using the AC/DC Module of COMSOL Multiphysics®. This is achieved through the accurate determination of different magnetic flux density components within the proposed geometry. Furthermore, based on the structure configuration, students can use obtained ...
Dipartimento di Ingegneria Industriale, Università di Parma, Parma, Italy
Simulated Thermal Response Test (TRT) data are analyzed in order to evaluate the effect of the tridimensionality model’s feature in determining the proper value of the soil thermal conductivity and borehole thermal resistance. The 3D system’s simulation during the TRT is realized by adopting the finite element method. The comparison of the numerical results with the analytical ...
V.M. Rodriguez-Zermeno, M.P. Sørensen, N.F. Pedersen, N. Mijatovic, and A.B. Abrahamsen
DTU Mathematics, Lyngby, Denmark
DTU Electrical Engineering, Lyngby, Denmark
Materials Research Division, Risø, DTU, Roskilde, Denmark
This work presents a method to calculate AC losses in thin conductors such as the commercially available second generation superconducting wires through a multiscale meshing technique. The main idea is to use large aspect ratio elements to accurately simulate thin material layers. For a single thin superconductor, several standard test cases are simulated including transport current, externally ...