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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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Mixing and Residence Time Distribution Studies in Microchannels with Floor Herringbone Structures

A. Cantu-Perez, S. Ping Kee, and A. Gavriilidis
University College London, Department of Chemical Engineering, Torrington Place, London, UK

The mixing characteristics and residence time distributions (RTDs) of a staggered herringbone microchannel have been investigated numerically by COMSOL Multiphysics and by particle tracking algorithms that incorporate diffusion via a random walk. All simulations were validated with ... Read More

A Novel Free-standing Evanescent Waveguide for Sensing

X. Meng [1], Y. Xin [1], P. French [1],
[1] Department of Microelectronics, Delft University of Technology, Delft, Netherland

Introduction The monitoring of bacteria concentration in drain fluid is the most common way to estimate the success of a colon surgery. However, the lack of efficient method to follow the development of E.coli in drain fluid after surgery is often fatal to the patient. The proposed ... Read More

The 3D Mixed-Dimensional Quench Model of a High Aspect Ratio High Temperature Superconducting Coated Conductor Tape

W.K. Chan[1,2], J. Schwartz[2], P. Masson[3], and C. Luongo[4]
[1]FAMU-FSU College of Engineering, Tallahassee, FL, USA
[2]North Carolina State University, Raleigh, NC, USA
[3]Advanced Magnet Lab, Palm Bay, FL, USA
[4]ITER Organization/Magnet Division, Saint Paul-lez-Durance, France

A successful development of an effective quench detection and protection method for a high temperature superconducting (HTS) coil based on a HTS coated conductor tape lays on a thorough understanding of its slowly propagating, three-dimension (3D) quench behavior. Toward this goal, a 3D ... Read More

Stress Field Simulation for Quantitative Ultrasound Elasticity Imaging

L. Yuan[1] and P.C. Pedersen[1]
[1]Department of Electrical and Computer Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts, USA

Finite element models using COMSOL Multiphysics and MATLAB were developed to solve the problem of stress distribution interior homogeneous, isotropic, incompressible elastic solid material under known vertical external compression with a rectangular contact surface. Moreover, comparison ... Read More

Polynomial-Chaos Uncertainty Modeling in Eddy-Current Inspection of Cracks

T. T. Zygiridis [1], A. E. Kyrgiazoglou [2], T. P. Theodoulidis [2],
[1] Department of Informatics and Telecommunications Engineering, University of Western Macedonia, Kozani, Greece
[2] Department of Mechanical Engineering, University of Western Macedonia, Kozani, Greece

In the context of non-destructive evaluation methods, eddy-current testing plays a prominent role in crack-detection problems, due to its various attractive features. One of the physical quantities that typically interest us in such type of problems is the – complex – coil impedance and ... Read More

Low-Loss Metallic Waveguide for Terahertz Applications

K.Singh [1], A.Sengupta [1], A.Bandyopadhyay [2],
[1] Indian Institute of Technology Delhi, New Delhi, India
[2] DRDO-JATC, New Delhi, India

Introduction: Terahertz waves (THz), also known as T-rays, range from 0.3 THz to 10 THz and hence positioned between Microwaves and Infrared radiations on the Electromagnetic spectrum. T-rays exhibit several distinctive properties which make these suitable for applications such as ... Read More

Implementation of Time-based 3-axis Capacitive Accelerometer using COMSOL Multiphysics®

Vishwesh A. Vyawahare [1], Nikhil Sarode [1], Surabhi Jadhav [1], Jennefer Sen [1], Trupti P. Agarkar [1], Akshay A. Jadhav [1],
[1] Ramrao Adik Institute of Technology, Navi Mumbai, Maharashtra, India

Micro-Electro-Mechanical system (MEMS) can be understood as miniaturized mechanical and electromechanical elements that include sensors, actuators, and microelectronics. Capacitive accelerometers are the devices which measure the acceleration on a surface using capacitive sensing ... Read More

Nanofluidic Analyte Preconcentration Using Fluid Field-Effect Diodes

A. Eden [1], K. Scida [1], J. C. T. Eijkel [2], C. D. Meinhart [1], S. Pennathur [1],
[1] University of California, Santa Barbara, CA, USA
[2] University of Twente, Enschede, Netherlands

Introduction Throughout the field of micro- and nanoscale electrokinetics, floating bipolar electrodes (BPEs) have proven to be useful in manipulating charged ionic species and biomolecules for electroanalytical studies. The growing use of integrated electronics in working towards fully ... Read More

Simulation of an Immunodetection System Based on Magnetic Nanoparticles

A. Rabehi [1], H. Kokabi [1], L. Chen [2], K. A. Ngo [3], H.-J. Krause [2]
[1] Sorbonne Universités, Laboratoire d’Electronique et Electromagnétisme, Paris, France
[2] Peter Grünberg Institute, Bioelectronics, Forschungszentrum Jülich, Germany
[3] Sorbonne Universités, Laboratoire Interfaces et Systemes Electrochimiques (LISE), Paris, France

In a first approach towards application of the magnetic frequency mixing technique to microfluidic structures, microplanar coils have to be designed along with sample reservoir. For this, a COMSOL Multiphysics® electrical model along with an analytical calculation is used in order to ... Read More

Design of a Self-Recharging Untethered Mobile Inspection Tool inside a Pipeline

W. Chalgham [1], A. C. Seibi [1],
[1] University of Louisiana at Lafayette, Lafayette, LA, USA

Pipeline inspection tools present some limitations related to power supply which require recharging after each operation. Using batteries or tethered tools make the duration to inspect any pipeline very limited and time consuming. This paper aims at designing a spherical self-recharging ... Read More

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