Veröffentlichungen und Präsentationen

Hier finden Sie Veröffentlichungen und Präsentationen der weltweit stattfindenden COMSOL-Konferenzen. In diesen präsentieren Ihre Fachkollegen ihre neuesten mit COMSOL Multiphysics entwickelten Produkte und Ideen. Die Forschungsthemen umfassen ein weites Feld von Industrien und Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Nutzen Sie die Quick Search, um die zu Ihrem Forschungsbereich passenden Präsentationen zu finden.

A Parametric Study on the Dynamic Behavior of Cable Supported Bridges Under Moving Loads Affected by Accidental Failure Mechanisms

P. Lonetti[1], A. Pascuzzo[1], R. Sarubbo[1]
[1]Department of Structural Engineering, University of Calabria, Rende, Cosenza, Italy

The dynamic behavior of cable supported bridges subjected to moving loads and affected by corrosion and accidental failure mechanism in the cable suspension system is investigated. The different types of cable supported bridges are distinctively characterized by the configuration of the cable system [1]. The suspension system comprises a parabolic main cable and vertical hanger cables connecting ...

Model of an Interdigitated Electrodes System for Cell Counting Based on Impedance Spectroscopy

E. Bianchi[1][2], F. Bellati[1], E. Rollo[2], G. Dubini[1], C. Guiducci[2]
[1]Politecnico di Milano, LaBS, Laboratory of Biological Structure Mechanics, Milano, Italy
[2]Swiss Federal Institute of Technology (EPFL), Laboratory of Life Sciences Electronics - Swiss Up Chair, Lausanne, Switzerland

A model of a cell counter sensor based on Impedance Spectroscopy (IS) has been implemented in COMSOL Multiphysics. The cell counter is a silicon-based microdevice consisting in 3D electrodes placed in a wide microchannel: cells flow in the microchannel through the electrodes to be detected. The model allows to evaluate the functionality of the device depending on geometrical parameters and ...

Computational Modeling and Simulation of the Human Duodenum

B. Hari[1], S. Bakalis[1], P. Fryer[1]
[1]The University of Birmingham, School of Chemical Engineering, Edgbaston, Birmingham, United Kingdom

Worldwide attention in the computational modeling and simulation of the human intestine is increasing in order to help understand its complex behavior and improve health. Computational fluid dynamics is an essential tool to understand the mechanics and transport phenomena of the human intestine, thereby advancing the diagnosis and treatment of gastrointestinal related diseases. The aim of this ...

Simulation of Chemotractant Gradients in Microfluidic Channels to Study Cell Migration Mechanism in Silico

P. Wallin[1], E. Bernson[1], J. Gold[1]
[1]Chalmers University of Technology, Applied Physics, Biological Physics, Gothenburg, Sweden

Cell migration of endothelial cells along gradients is an important process in vivo and an interesting target for cancer therapeutics. Microfluidics offer very powerful tools to study such migration processes in detail in the lab. In this study, we describe a model to simulate molecular gradients in a diffusion based microfluidic gradient generator and how a cell senses these gradients via cell ...

Numerical Modeling of Powder Flow During Coaxial Laser Direct Metal Deposition: Comparison Between Ti-6Al-4V Alloy and 316L Stainless Steel

S. Morville[1], M. Carin[1], D. Carron[1], P. Le Masson[1], M. Gharbi[2], P. Peyre[2], R. Fabbro[2]
[1]Université de Bretagne-Sud/UEB-LIMATB, Lorient, France
[2]PIMM, Arts et Métiers ParisTech, Paris, France

This paper presents a 3D numerical model to predict the whole process of coaxial powder flow, including the particle stream flow in and below the nozzle and also the laser-particle interaction process. The Particle Tracing Module of COMSOL Multiphysics is used to solve the coupled momentum transfer equations between the particle and gas phase while incorporating particle temperature evolution. A ...

Simulation of Impact Damage in a Composite Plate and Its Detection

V. Pavelko[1], I. Pavelko[1], M. Smolyaninovs[1], H. Pffeifer[2], M. Wevers[2]
[1]Riga Technical University, Riga, Latvia
[2]Catholic University Leuven, Leuven, Belgium

A problem of damage prediction in aircraft structure and its non-destructive evaluation is very important for aircraft structural health assessment. The analysis of the features of direct impact of thin-walled laminate component of aircraft was performed by COMSOL Multiphysics software. Mainly the GFRC and CFRC laminates were selected in form either thin separate plate or sandwich structure. The ...

Fracture-Matrix Flow Partitioning and Cross Flow: Numerical Modeling of Laboratory Fractured Core Flood

R. Sanaee[1], G.F. Oluyemi[1], M. Hossain[1], B.M. Oyeneyin[1]
[1]Robert Gordon University, Aberdeen, United Kingdom

The contrast between hydro-mechanical behavior of the rock matrix and fracture network systems results in flow partitioning between fracture and matrix systems which is affected by the In-situ stress regime. Fracture flow, Darcy law and free and porous media flow physics interfaces of COMSOL were used in simulating a fractured core flooding test to achieve a better understanding of flow ...

Modeling of Pulsed Laser Thermal Annealing for Junction Formation Optimization and Process Control

R. Negru [1], K. Huet[1], P. Ceccato[1], B. Godard[1]
[1]Excico, Gennevilliers, France

It is now a well known that the next generation devices in many fields of the semiconductor industry will be based on 3D architectures. In this framework, low thermal budget annealing technological solutions are required. For many applications, either in the field of sensors, microprocessors or high density memories, the Laser Thermal Annealing (LTA), an ultrafast and low thermal budget process, ...

Exergy Analysis of a Water Heat Storage Tank

F. Dammel[1], J. Winterling[1], K. J. Langeheinecke[2], P. Stephan[3]
[1]Institute of Technical Thermodynamics, Technische Universität Darmstadt, Germany
[2]IAV, Gifhorn, Germany
[3]Institute of Technical Thermodynamics/Center of Smart Interfaces, Technische Universität, Darmstadt, Germany

A combined heat and power (CHP) plant generates both electricity and useful heat. A heat storage tank enables a decoupling of electricity and heat delivery. In this study a cylindrical hot water storage tank is considered. Charging, holding time and discharging are numerically simulated applying COMSOL Multiphysics 4.2. The performance of the heat storage is evaluated by an exergy analysis. ...

Microscale Simulation of Nanoparticles Transport in Porous Media for Groundwater Remediation

F. Messina[1], M. Icardi[1], D. Machisio[2], R. Sethi[1]
[1]Politecnico di Torino - DIATI, Torino, Italy
[2]Politecnico di Torino - DISAT, Torino, Italy

Nanoscale zerovalent iron is a promising reagent for the remediation of contaminated groundwater. The aim of the study is to simulate the transport of iron nanoparticles and their interaction with the porous media, their attachment and deposition on the soil grains. The particles trajectories is determined by several forces, some of them are significance only close to grains surfaces where, ...

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