Technical Papers and Presentations

Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Modeling the Collimator-Detector Scattering Using Stochastic Differential Equations and COMSOL

A. Jeremic[1], T. Farncombe[2], S. Liu[2], and Y. Abdul-Rehman[1]
[1]Department of Electrical and Computer Engineering, McMaster University, Hamilton, Ontario, Canada
[2]Department of Radiology, McMaster University, Hamilton, Ontario, Canada

Single photon emission computed tomography (SPECT) is a nuclear medicine imaging technique that uses gamma rays. It has been especially useful for bone scans, cardiac perfusion imaging, tumor scans and brain imaging. The main advantage of SPECT imaging is that it can target particular tissue receptors allowing one to focus on the imaging of the diseased tissue. In most cases Monte Carlo ...

Multiphysical Modeling of Calcium Carbonate Transportation in UV Disinfection in Water Treatment

E. R. Blatchley[1], and B.Z. Sun[1]
[1]Department of Civil Engineering, Purdue University, West Lafayette, IN, USA

Mineral precipitation on to the quartz surface of the lamp jackets in UV disinfection process (fouling) has been recognized as a major problem for UV radiation delivery during disinfection operation. Fouling behavior was observed to be induced thermally and influenced by hydraulic character of the UV disinfection configuration. Fouling process involves momentum, heat, and mass transport within ...

COMSOL Multiphysics® as a Tool for Reducing Animals in Biomedical Research: An Application in Dermatology

F. Rossi[1] and R. Pini[1]
[1]Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Firenze, Italy

In biomedical research the use of animal models gives rise to several ethical problems. COMSOL Multiphysics® may be used as a non-animal technique, very useful in overcoming all these concerns. In this presentation a particular application in dermatology is shown. Bioheat equation mode and diffusion approximation were used to design a theoretical model of blue LED light interaction with an ...

Optimization of a Thermal Actuator for Low Power/Low Cost Applications

R. Zúñiga-Quesada[1], M. Vílchez-Monge[1], P. Vega-Castillo[1]
[1]Instituto Tecnológico de Costa Rica, Cartago, Costa Rica

This work describes the study of a thermal actuator and modifications to the materials employed in order to decrease power consumption and implementation costs. For this study, we worked on improving the thermal actuator described in the work of T. Ebefors. The criteria for choosing the new materials were lower power consumption, commercial availability, and ease processing. The thermal actuator ...

Application of Solution Mapping to Reduce Computational Time in Actively Cooled Power Electronics

K. Lowe [1,2], and Rao V. Arimilli[2]
[1]Oak Ridge National Laboratory, Oak Ridge, TN, USA
[2]Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN, USA

In some power electronic applications the available coolant temperature is close to maximum and controlling operating temperature becomes more challenging, for which new thermal management schemes must be considered. COMSOL predicts the 3D fluid behavior and 3D temperature distribution within an actively cooled power electronic structure. A solution mapping method is implemented to more ...

Numerical Modelling of Electrophoresis Applied to Restoration of Archaeological Organic Materials

J. Caire[1], A. Bouh[1], and E. Guilminot[2]
[1]LEPMI, UMR 5631, INPG - CNRS, Saint Martin d’Hères, France
[2]EPCC, Arc'Antique, Nantes, France

Restoration of archaeological materials from oceans is a major activity of Arc’ Antique. Organic materials such as wood, tissues, leathers, papers and ceramics found in sea water are always impregnated with salts. Rinsing such archaeological objects with pure water to extract the salts takes too long, so electrophoresis was used to improve the salt extraction. The objective of this ...

Extraction of Phenolic Compound from Grape Fruit. A Comparison Between a 3D FEM Model and Experimental Results

E. Madieta, I. Zouid, R. Siret, and F. Jourjon
Laboratoire GRAPPE, ESA, Angers, France

Fresh fruits and vegetables are gaining importance in the human diet because they contain many beneficial compounds. Among these compounds, phenols are of vital importance due to their antioxidant properties. It is well evident from previous researches that the skin of red grapes is considered a good source of phenols. The aim of this work is to simulate the extraction procedure of phenols in ...

The initial simulation on characteristic of lithium ion cells using COMSOL soft

X. Liu, S. Wang, and L. Lu
Tianjin Institute of Power Source, Beijing, China

Tianjin Institute of Power Source (TIPS) is the first, the largest and most complete electrical energy technology research institute of China. We use COMSOL Multiphysics to simulate the lithium-ion batteries. It contains: Simulation on charge-discharge behavior of lithium ion cells; Simulation on thermal and safety of lithium ion cells; Design for lithium ion cells – collector, stress; From ...

Control of Technological and Production Processes Modeled by COMSOL Multiphysics as Distributed Parameter Systems

G. Hulkó, C. Belavý, G. Takács, and P. Zajíček
Slovak Technical University in Bratislava, Bratislava, Slovakia

COMSOL Multiphysics is widely utilized in the modeling of dynamics of technological and manufacturing processes. At the same time the investigated technological and manufacturing processes are generally described by systems of partial differential equations as distributed parameter systems. This paper presents actual possibilities of control of systems modeled by COMSOL Multiphysics as ...

Dynamic Simulation Of Particle Self-Assembly Applied To Microarray Technology

V. Di Virgilio, A. Coll, S. Bermejo, and L. Castañer
Universitat Politecnica de Catalunya, Barcelona, Spain

In this work we want to explore some techniques, microfluidic and electrospray-ionization based, suitable for dynamic microarrays\' fabrication. The fabrication techniques are based on manipulation and self-assembly of selective coated micro and nanobeads. The simulation will include electro-osmotic flow, species transport, and electrostatics.

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