Flores, N., Gamio, J.C., Ortiz-Alemán, C., Damián, E.
Instituto Mexicano del Petróleo, México, D.F., México
Multiphase flow characterization is an important task for monitoring, measuring or controlling industrial processes. This can be done by means of process tomography. One category of process tomography, is electrical capacitance tomography (ECT), where the cross section to be imaged is surrounded by a set of capacitance electrodes formed from simple metal plates. This paper presents the ...
McKenna, J.R.1, Blackwell, D.D.2
1 U.S. Army Engineer Research & Development Center, Geotechnical & Structures Laboratory, Vicksburg, Mississippi
2 Department of Geological Sciences, Southern Methodist University, Dallas, Texas
Thermal anomalies indicating elevated temperatures often are present in producing hydrocarbon fields. This paper discusses precision temperature logs obtained over a salt dome in the Bayou Bleu hydrocarbon field in southwest Lousiana, and presents a 3-D thermal-fluid model of the dome constrained by these types of logs. The numerical model in which both an enhanced thermal conductivity ...
Oberhauser, A.1, Adam, D.2
1 Wissenschaftlicher Mitarbeiter am Institut für Eisenbahnwesen, Verkehrswirtschaft und Seilbahnen, TU Wien, Wien
2 Ingenieurkonsulent für Bauingenieurwesen, Universitätsdozent am Institut für Grundbau und Bodenmechanik der TU Wien
The usage of geothermal heat by the means of railway infrastructure is a relatively new method to tap renewable energy sources. A research project at the Department of Railway Engineering, Transport Economics and Ropeways at Vienna University of Technology in cooperation with the Department of Soil Mechanics and Geotechnical Enginering and the Atlas Copco MAI Ltd. deals with the development of ...
Eriksson, O., Kjäll, P.
University of Uppsala, Sweden
Stereotactic frames are used during surgical interventions in order to localise and, with high accuracy and precision, help the surgeon to reach a target in the brain. By using an image modality, e.g. MRI or CT, the target can be localised and its coordinates determined prior to the surgery. Previous phenomenological and experimental studies of the Leksell® Coordinate Frame during 3T MRI ...
Clauß, C.1, Martin, R.1, Nordwig, A.2, Nytsch-Geusen, C.2, Schneider, A.1, Schwarz, P.1
1 Fraunhofer-Institut für Integrierte Schaltungen, Außenstelle EAS, Dresden
2 Fraunhofer-Institut für Rechnerarchitektur und Softwaretechnik, Berlin
Der Entwurf technischer Systeme erfordert oft das Zusammenwirken verschiedener physikalischer Domänen (Mechanik, Fluidik, Elektronik, ...) sowie die gemeinsame Betrachtung verschiedener Komponenten und Subsysteme (mechanischer Verformungskörper, elektronischer Regler, digitale Signalverarbeitung, ...). Für diese komplexen Aufgaben ist in vielen Fällen Simulatorkopplung unerläßlich. Es ...
Ramirez, J.C., Cristea, P., Stan, M.
Materials Science & Technology Division, Los Alamos National Laboratory
The nuclear reaction is modeled as a uniformly distributed volumetric heat source. All heat is conducted from the fuel towards the outer surface of the cladding. A number of results are presented.
Koser, H., Kaya, T., Mao, L.
Department of Electrical Engineering, Yale University, New Haven, CT
We have developed a novel, multilayered microfluidic chamber that enables the realtime quantitative study of chemotaxis on virtually all types of motile cells. In this paper, we present a FEMLAB modeling study of the 3D chamber design, including a consideration of each device iteration that successively led to the eventual design. The final chamber design is able to create and maintain an ...
Tim Cale, Daniel Bentz, and Max Bloomfield, RPI
We discuss the use of 3D grain continuum modeling to study grain boundary migration driven by differences in strain energy density. COMSOL Multiphysics is used to compute stresses and strain energy densities in polycrystalline structures caused by temperature changes. We treat each grain as a single crystal, with the anisotropic elastic properties of single crystal Cu appropriately rotated to ...
A. Pellegrini and F. Costa
ALTRAN Italia, Pisa, Italy
In this paper the propagation of a plane wave in a large lossy medium is presented. The investigated geometry consists in a wedgeshaped lossy dielectric embedded in a lossy material with different electromagnetic properties. The aim of the study is to determine the feasibility of a radar technique for measuring the length of the dielectric wedge. In order to address this problem and to evaluate ...
A Numerical Study for Rubber Particles Collection Involved in New Thermoforming Composite Process Using COMSOL Multiphysics®
R. Carbone, V. Antonelli, A. Langella, and R. Marissen
Material and Production Engineering Department, Università degli Studi di Napoli Federico II, Napoli, Italy
Institute of Lightweight Structures, Technische Universität München, München, Germany
Design and Production of Composite Structure, Delft University of Technology, Delft, The Netherlands
This paper deal of the forming process applied to the thermoplastic composites. A new thermoforming process that uses rubber particles collection as flexible mould was presented and numerically modeled. A characterization of the rubber in particles form was previously performed to value the material parameters in the user-defined hyperelastic constitutive laws employed in the FEM (Finite Element ...