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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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Modeling Two Phase Fluid Flow in High Speed Counter Current Chromatography

G. Stevens [1], K. Weisbrod [1], R. Chamberlin [1], S. Yarbro [1],
[1] Los Alamos National Laboratory, Los Alamos, NM, USA

High-speed counter current chromatography (HSCCC) is a unique process presenting possibilities for efficient separations by creating a large interfacial area between two phases in counter current flow. Millifluidic channels rotate about both planetary and solar axes to create a rapidly ... Read More

Modeling of Avalanche Breakdown in Silicon and Gallium Nitride High-Voltage Diodes using COMSOL®

J. R. Dickerson [1], G. W. Pickrell [1], R. J. Kaplar [1],
[1] Sandia National Laboratories, Albuquerque, NM, USA

For high-power semiconductor devices to function correctly, it is imperative to manage the electric fields inside of the device. This is typically done using an edge termination scheme such as guard rings or junction termination extensions. Edge terminations are used to spread localized ... Read More

Modeling Heat Transfer Through Filament Yarns by Random Geometry Creation

N. Anand [1], W. J. Jasper [1], E. DenHartog [1],
[1] North Carolina State University, Raleigh, NC, USA

Filament yarns are a collection of microfibers of set diameter and material held together by tension and/or intra-filament attraction. This results in a stacking patterns which can be random with different degrees of freedom. A slight change in tension or attractive forces may mean a ... Read More

Mathematical Modeling of Drug Transport in Brain Tumors

Y. Guo [1], M. O. Bernabeu [2], C. D. Arvanitis [1],
[1] Georgia Institute of Technology, Atlanta, GA, USA
[2] University of Edinburgh, Edinburgh, United Kingdom

Blood-brain and blood-tumor barriers (BBB and BTB) constitute a major obstacle to the transport of therapeutics in brain tumors. Focused ultrasound (FUS), when combined with circulating microbubbles, provides a noninvasive method to locally and transiently disrupt the BBB/BTB. ... Read More

Improving Thermal Effect on Biological Tissue using Multiphysics Simulation and Shape Optimization

A. Ward [1],
[1] System Insight Engineering, Centennial, CO, USA

As minimally invasive and robotic surgical devices get smaller, designing precise energy delivery to create the desired tissue effect becomes a key component in product development. With many interdependent physical phenomena occurring simultaneously, it becomes necessary to use tools ... Read More

Generation of SFQ-Pulses in SNS-Junctions: Learning Physics using the COMSOL Multiphysics® software

A. M. Gulian [1], G. Melkonyan [2],
[1] Advanced Physics Laboratory, Chapman University, Burtonsville, MD, USA
[2] GMLabs, Quebec, QC, Canada

Single Flux Quantum, or SFQ, dynamics is at the heart of superconducting electronics. So are the Josephson junctions, or in a wider context, weakly-coupled superconducting junctions, in particular, superconductor-normal metal -superconductor, or SNS, junctions. Despite the COMSOL ... Read More

Generation of Divergence-Free Bessel-Gauss Beam from an Axicon Doublet for km-Long Collimated Laser

C. Daengngam [1], S. Boonsit [1], P. Kalasuwan [1], P. van Dommelen [1], P. Srisamran [1],
[1] Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla, Thailand

A well-collimated intensity profile at long distance has long been a desired laser property crucial for many potential applications. Extending a non-diverging range for ordinary laser beyond kilometers scale would permit superior performance for optical technologies, including LIDAR, or ... Read More

Foundational Undergraduate Teaching and Research Tools In Thermoelectrics Using COMSOL Multiphysics®

D. Buna [1], L. Hoxha [1], D. Tafone [1]
[1] School of Theoretical and Applied Science, Engineering Physics, Ramapo College of New Jersey, Mahwah, NJ, USA

COMSOL Multiphysics® can play a crucial role in jumpstarting undergraduate research programs in physics and engineering at colleges with limited financial support and small faculty size. The engineering physics program at Ramapo College of NJ has 48 majors and 4 full time faculty with ... Read More

Fast Charging Strategy Optimization based on Electrochemical Model and Dynamic Programming for a Lithium-ion Battery Cell

M. Xu [1] , X. Wang [1]
[1]Department of Mechanical Engineering, Oakland University, Rochester, MI, USA

Fast charging of lithium-ion batteries is critical to commercial application of electrical vehicles (EV). Recharging lithium-ion batteries using standard charging methods usually takes more than one hour which is considerably longer than refueling an internal-combustion-engine (ICE) car. ... Read More

Evaporative Cooling in Solar Absorption Chiller

J. Ma [1], M. J. Suh [1],
[1] Sam Houston State University, Huntsville, TX, USA

Solar cooling systems based on evaporation and absorption processes have been actively studied and different mechanisms based on various refrigerants are designed and developed. Amongst these systems, a single-stage close cycle design utilizing lithium bromide salt and water (LiBr-H2O) ... Read More

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