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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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Implementation of a Viscoelastic Material Model to Simulate Relaxation in Glass Transition

Z. Zheng[1], R. Zhang[1]
[1]Corning Incorporated, Corning, NY, USA

Introduction: Glass relaxation occurs in a range of temperature during transition from equilibrium to super-cooled liquid. Viscoelastic material model can be applied to simulate glass behavior during the glass transition regime and to predict the glass deformation and stress evolution. ... Read More

Estimation of Critical Parameters of Drop-Drop Electrocoalescence Using a Multiple-Drop System

S. S. Kulkarni[1], V. A. Juvekar[1], A. Chheda[2]
[1]Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
[2]Institute of Chemical Technology, Mumbai, Maharashtra, India

Electrocoalescence is the phenomenon of coalescence of droplets suspended in an insulating liquid or in a gas under the action of an electric field. Electrocoalescence is considered a promising tool in many petrochemical industries for desalting crude oils. However, this technique ... Read More

Electric Field Calculations for AC and DC Applications of Water Controlled Cable Termination

T. Karmokar[1], R. Pietsch[1]
[1]HIGHVOLT Prüftechnik Dresden GmbH, Dresden, Sachsen, Germany

The computation of electric field strength is the state-of-the-art technique for designing and optimizing High-Voltage (HV) equipment. In this research, the equipment under analysis is Cable Termination (CaTr) which is used to apply high-voltage (75 kV – 800 kV AC) on the cable to be ... Read More

Multiscale Electromagnetic Modeling of Contractions in the Pregnant Uterus

V. Tidwell[1], P. LaRosa[2], M. Zhang[1], H. Eswaran[3], A. Nehorai[1]
[1]Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, USA
[2]Monsanto Company, Technology Pipeline Solutions, St. Louis, MO, USA
[3]OB/GYN Department, University of Arkansas for Medical Sciences, Little Rock, AR, USA

Uterine contractions during pregnancy are currently poorly understood – experts disagree on the mechanisms by which contractions propagate through the organ and the structural layout of the uterine muscle fibers. We have developed a multi-scale model of the uterus, at the cellular, ... Read More

Modeling and Simulation of High Sensitivity CMOS Pressure Sensor Using Free Boundary Circular Diaphragm Embedded on Ring Channel Shaped MOSFET

S. Joy[1], T. Tom[1]
[1]Rajagiri School of Engineering and Technology, Kochi, Kerala, India

Sensors have diverse applications ranging from the medical field to space exploration. They convert physical parameters such as temperature, pressure, humidity etc. into an electrical output. The discovery of piezoresistivity property of silicon and germanium led to miniaturization of ... Read More

Simulation of Microstructured Rolling-Sliding Contacts

M. Weschta[1], S. Tremmel[1], S. Wartzack[1]
[1]Engineering Design, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Bavaria, Germany

To reduce friction in lubricated tribological contacts, the surfaces of the contacting bodies can be microstructured to improve lubricating conditions. For lower loaded contacts this approach has already reached industrial applications, e.g. the piston-liner contact. For higher loaded ... Read More

Heat Transfer in Crossflow Heat Exchangers for Application with Microreactors

R. Pryor[1]
[1]Pryor Knowledge Systems, Inc., Bloomfield Hills, MI, USA

This paper explores methods of improving the heat transfer coefficient in a crossflow heat exchanger as would be employed in conjunction with an experimental or production microreactor. This derivation of the Cross-Flow Heat Exchanger from the COMSOL Multiphysics® software Model Library ... Read More

Study of the Process, Design, and Operating Parameters Effect on the Efficiency of the Process Mill

A. K. Farouk[1]
[1]Department of Mathematics & Natural Science, University of Stavanger, Sandnes, Rogaland, Norway

This study is to investigate the velocity pattern and the velocity magnitude of the cuttings that is being processed in the process mill as a result of the rotating hammers. The process mill consists of a horizontal cylindrical shell equipped with renewable liners and rotating hammers ... Read More

Prediction of Magnetic Fields, Eddy Currents, and Loads in a Tokamak During a Disruption for Alcator C-Mod's Advanced Outer Divertor

J. Doody[1], B. Lipschultz[2], R. Granetz[1], W. Beck[1], L. Zhou[1], J. Irby[1]
[1]Massachusetts Institute of Technology, Plasma Science and Fusion Center, Cambridge, MA, USA
[2]York Plasma Institute, University of York, Heslington, York, UK

COMSOL Multiphysics® has been used to predict the magnetic fields, eddy current, lorenz forces and stresses during a disruption for the new Advanced Outer Divertor for the Alcator C-Mod tokamak. A tokamak is used to study magnetic confinement of plasma for fusion, and a disruption ... Read More

Evaluation of Instability of a Low-salinity Density-dependent Flow in a Porous Medium

Y. T. Habtemichael[1], R. T. Kiflemariam[2], H. R. Fuentes[1]
[1]Department of Civil & Environmental Engineering, Florida International University, Miami, FL, USA
[2]Department of Mechanical & Materials Engineering, Florida International University, Miami, FL, USA

Seawater intrusion into coastal aquifers is usually modeled by using transport models that include account for the effect of variable-density on flow. Variable-density models can be validated with the Henry and Elder benchmark problems. However, when mixed convective flow is simulated ... Read More

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