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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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Broadband Polarization-Independent and Wide-Angle Metasurface for Radar Cross Section Reduction

A. Vora [1], S. Joshi [2], D. Guney [1],
[1] Michigan Technological University, Houghton, MI, USA
[2] Touro College, New York, NY, USA

In the past few years, metamaterial perfect absorbers (MPA) have been extensively studied due to their incredible ability to manipulate electromagnetic waves and provide a broadband, polarization-independent, and wide-angle response for a host of applications. The need for high ... Read More

Simulation of a Microwave Applicator for the Treatment of Petroleum Emulsions

A. V. Vazquez [1, 2], P. M. G. Vite [3],
[1] Universidad Politécnica de Altamira, Altamira, Tamaulipas, México
[2] Universidad Tecnológica de Altamira, Altamira, Tamaulipas, México
[3] TEC/NM, Instituto Tecnológico de Ciudad Madero, Ciudad Madero, Tamaulipas, México

In Mexico there is a decline in the production of oil deposits due to the lack of effective treatment of oil emulsions, which generate a problem in the reinjection of emulsified water, transport of oil with high water content and corrosion in the oil refineries. Through the simulation ... Read More

Simulation Study of High Frequency Pulsed DC Discharges in Nitrogen

L. Tong [1],
[1] Keisoku Engineering System Co., Ltd., Tokyo, Japan

Pulsed DC technology has led to the design of cost-effective deposition systems and to improved film properties, compared to conventional rf systems. In this work, a two-dimensional finite element model is used to investigate the high frequency pulsed DC discharges in nitrogen. The study ... Read More

Frequency and Electrode Separation Recommendations for EDA Measurements

S. Sridhar [1], T. J. Akl [1],
[1] Analog Devices Inc., Wilmington, MA, USA

Electrodermal Activity (EDA) is a measure of changes in the conductivity of the skin. It has have been found to be indicative of the individual’s autonomic nervous activity which is correlated to their stress and emotional state. These conductivity changes are tracked by injecting a ... Read More

Computational Fluid Dynamic Modeling of Geothermal Membrane Distillation

C. Rivera [1], C. Sanchez [1], J. Paiz [1], M. Troyer [1], F. Huang [1]
[1] Department of Civil & Environmental Engineering, New Mexico Institute of Mining and Technology, Socorro NM, USA

A 3-D COMSOL model was established to investigate the heat and mass transfer in a hollow fiber membrane (HFM) module for direct contact membrane distillation (DCMD). Membrane distillation is a separation process that relies on vapor pressure gradients to drive the production of purified ... Read More

Numerical Modeling of Nanopipettes for Electrophysiology and Imaging

J. Rabinowitz [1],
[1] Columbia University, New York, NY, USA

Nanoscale pipettes allow for exciting extensions of traditional current- and voltage-clamping electrophysiology experiments. However, bulk electrodynamic properties begin to break down at nanoscale openings, introducing unusual effects that must be understood in order to properly ... Read More

An Examination of Wall Shear Stresses in Curved Arterial Vessels Using Bioresorbable Stents

D. W. Pepper [1], S. Pirbastami [1],
[1] University of Nevada - Las Vegas, Las Vegas, NV, USA

Bioresorbable stents are providing temporary mechanical support to keep a narrowed or blocked coronary artery open and restore the blood flow and will be gradually degraded and resorbed after the healing and remodeling of arterial wall. This new generation of stents has lower rates of ... Read More

Dynamic Simulation of a Polymer Molecule Using COMSOL Multiphysics®: DNA Separation in a Microchannel

J. Park [1], S. Monjezi [1], M. Palaniappan [1], J. D. Jones [1], B. Behdani [1],
[1] Missouri University of Science and Technology, Rolla, MO, USA

In this study, COMSOL Multiphysics was used to simulate DNA separation within a microchannel based on the entropic trapping mechanism. The entropic trapping mechanism involves DNA molecules passing through a series of obstacles in a microchannel and different lengths of DNA exhibiting ... Read More

A Phase Field Model for Lithium Ion Battery Particles

R. Painter [1], L. Sharpe [2], S. K. Hargrove [2],
[1] Department of Civil Engineering, Tennessee State University, Nashville, TN, USA
[2] Department of Mechanical Engineering, Tennessee State University, Nashville, TN, USA

In this study, a three-dimensional (3-D) phase field model was developed to better understand the parameters impacting the LiFePO4 cathode material in lithium ion batteries. LiFePO4 has a strong tendency to separate into stable high Li+ concentration and low Li+ concentration phases, ... Read More

Modeling Internal Erosion Processes in Soil Pipes

J. L. Nieber [1], G. V. Wilson [2], G. A. Fox [3],
[1] University of Minnesota, St. Paul, MN, USA
[2] United States Department of Agriculture - Agricultural Research Service National Sedimentation Laboratory, Oxford, MS, USA
[3] North Carolina State University, Raleigh, NC, USA

The erosion of the interior of soil pipes is an important process in the fields of geomechanics and geomorphology. Soil pipes can form in water holding structures like dams and levees, and water flow through these structures becomes concentrated into the soil pipes as they evolve by the ... Read More

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