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See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.

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Using Computational Fluid Dynamics Model to Predict Changes in Velocity properties in Stented Carotid Artery

S. Vaidehi, and A. Ritter
Stevens Institute of Technolgy, Hoboken, NJ, USA

Atherosclerosis is a disease that narrows, thickens, hardens and restructures a blood vessel due to substantial plaque deposit. In the Carotid Artery, the decision to treat using endarterectomy and stenting is determined by the velocity as measured by Doppler flow in the common Carotid ... Read More

Electro-Thermo-Mechanical Finite Element Modeling to Investigate the Reliability of Automotive MOSFET Transistor

T. Azoui, P. Tounsi, and J.M. Dorkel
CNRS, LAAS, Toulouse, France

3D electro-thermo-mechanical finite element model of power vertical MOSFET used in the automotive industry is presented in this paper. The presented paper is a qualitative study of power device results from electro-thermo-mechanical simulation. This study particularly interested in the ... Read More

A Model of Gas Bubble Growth by COMSOL Multiphysics

B. Chinè[1,2], and M. Monno[1,3]
[1]Laboratorio MUSP, Macchine Utensili e Sistemi di Produzione, Piacenza, Italy
[2]Instituto Tecnològico de Costa Rica, Escuela de Ciencia e Ingenierìa de Materiales, Cartago, Costa Rica
[3]Politecnico di Milano, Dipartimento di Meccanica, Milano, Italy

We use COMSOL Multiphysics to model a gas bubble expansion in a viscous liquid initially at rest, a very common system for lightweight foamed materials from metal production and polymer processing. Modelling and simulation of foam processing during the production step involves many ... Read More

Numerical Simulation of Magnetic Drug Targeting with Flow – Structural Interaction in an Arterial Branching Region of Interest

A. Morega, A. Dobre, and M. Morega
University Politehnica of Bucharest, Bucharest, Romania

We report a numerical study on the blood – magnetic carrier aggregate flow in an external magnetic field, for applications such as magnetic drug targeting. The arterial system morphology is complex and patient-related therefore more realistic numerical simulations request medical image ... Read More

Simulation of Laser-Material Interactions for Dynamic Transmission Electron Microscopy Experiments

B.W. Reed[1], T.B. LaGrange[1], G.H. Campbell[1], and N.D. Browning[1,2]
[1]Lawrence Livermore National Laboratory, Livermore, CA, USA
[2]University of California Davis, Davis, CA, USA

The Dynamic Transmission Electron Microscope (DTEM) at Lawrence Livermore National Laboratory is a unique instrument able to capture images of fast-evolving microstructure with exposure times of only 15 ns. This is more than six orders of magnitude faster than conventional in situ ... Read More

Erosion Of Buffer Caused By Groundwater Leakages Based On ESM-Application

O. Punkkinen[1], A. Jorma[1], K. Kari[2], and M. Olin[3]
[1]B+Tech, Helsinki, Finland
[2]Posiva, Eurajoki, Finland
[3]VTT, Espoo, Finland

In this work the issue of saturation phase erosion caused by groundwater leakages was approached both experimentally and computationally by employing COMSOL\'s Earth Science Module. We evaluated the total mass of eroded bentonite out of a cylindrical erosion channel both numerically and ... Read More

Beam Structure As an Acoustic Wave Sensor: A Study of the Effect of Sensor Design on Its Sensitivity to Noise

F. Akasheh[1], A. Biddle[1], W.S. Shepard Jr.[2], and B.B.B. Zhang[2]
[1]Tuskegee University, Tuskegee, AL, USA
[2]University of Alabama, Tuscaloosa, AL, USA

The detection and identification of the location of a sound source is commonly done using arrays of microphones. A recent new alternative approach has been proposed which involves the use of continuous structures, such as beams or plates, as acoustic wave sensors. The sound wave ... Read More

Heat Flux Predictions for a 3-D Compost Model

M. Teutli [1], Jiménez[1], Lozano[1], Peláez[1], J. Roque[2], and I. González[3]
[1]BUAP, Puebla, Mexico
[2]Universidad Veracruzana, Xalapa, VZ, Mexico
[3]UAM, Mexico City, Mexico

A 3-D model for compost was constructed taking as geometry basis a truncated cone, with dimensions of 4 m radius and 3 m height; in this structure an energy balance is applied for a two phase system (solid-air). Compost energy processes are modeled using COMSOL with a modified heat ... Read More

Modeling of a Helical Coil Heat Exchanger for Sodium Alanate Based on-board Hydrogen Storage System

S. Kumar[1], and M. Raju[2]
[1]General Motors R&D Center, Warren, MI, USA
[2]Optimal CAE Inc., Detroit, MI, USA

Hydrogen refueling in a metal hydride based automotive hydrogen storage system is an exothermic reaction and hence an efficient heat exchanger is required to remove the heat for fast refueling. In this paper a helical coil heat exchanger embedded in a sodium alanate bed is modeled using ... Read More

Microfluidic Design of neuron-MOSFET based on ISFET

A. Jain[1], and A. Garg[2]
[1]BITS Pilani, Goa Campus, India
[2]Bhartiya Vidyapeeth College, New Delhi, India

An ISFET is an ion-sensitive field effect transistor used to measure ion concentrations in a solution; when the ion concentration changes, the current through the transistor will change accordingly. Here, the solution is used as a gate electrode. A voltage between substrate and the oxide ... Read More

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