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.

COMSOL Multiphysics® Modelling for Li-ion Battery Ageing

P. Singh[1], N. Khare[2], P. K. Chaturvedi[3]
[1]Banasthali University, Banasthali, Rajasthan, India
[2]EOS Energy Storage, Edison, NJ, USA
[3]SRM University, Ghaziabad, Uttar Pardesh, India

Introduction: Recently, Li-ion battery is being widely used as power source for various applications from electronic gadgets to automotive industry. The performance and cycle life of Li-ion battery are becoming gradually important issues as the applications are shifting from small scale consumer electronics to dynamic power applications (Electric Vehicles, Hybrid Electric Vehicles). To create a ...

Comparison Between Flow Simulations and Foam Experiments in Porous Media

R.R. Thorat[1], H. Bruining[1]
[1]Petroleum Engineering, CiTG, TU Delft, Delft, The Netherlands

Recovery of oil by gas injection is usually inefficient due to the low viscosity of the gas, which results in bypassing of the oil. By adding surfactant solutions it is possible to get in-situ foam formation. Foam has a much higher “viscosity” and hence does not bypass the oil, leading to enhanced oil recovery. In this context, the foam propagation is studied experimentally and theoretically. ...

A Finite Element Analysis of the Influence of Morphology on Barrier Properties of Polymer-Clay Nanocomposites

D. L. Statler Jr., and R. K. Gupta
Department of Chemical Engineering, West Virginia University, Morgantown, WV, USA

Nanocomposites, formed by dispersing a few weight-percent of nanometer-thick platelets of organically-coated montmorillonite clay in a variety of polymers, are being used in food packaging applications. The clay platelets reduce the diffusion coefficient of gases, such as carbon dioxide and water vapor, and prolong the shelf-life of packaged foods and carbonated beverages. Here we use the COMSOL ...

Wind Field Generation for an Urban Scale using COMSOL

H.-J. Jeong
Korea Atomic Energy Research Institute, Korea

This paper presents the application of the nesting method to wind fields on coarse grid to then produce a fine grid wind fields. This is done using COMSOL Multiphysics. Fine-grid wind fields, which are considered to be an urban structure, were useful in drawing scenarios for counter terrorist attacks.Also, it was confirmed that COMSOL Multiphysics could be easily applicable to multi-nesting to ...

Simulation of Realistically Shaped Nanoantennas Using COMSOL Multiphysics

C. Moosmann, G. Sigurdsson, K. Dopf, M. D. Wissert, H.-J. Eisler, and U. Lemmer
Light Technology Institute
Karlsruhe Institute of Technology
Karlsruhe, Germany

Nanoantennas – nanometer sized gold structures resonant at optical wavelengths have interesting properties for many applications. For numerical simulations of such structures simplified geometries are usually considered. However the fabricated shapes still differ significantly from perfect geometries and such structures are sensitive to geometrical changes. Here, we investigate how the ...

Analysis of an Electromagnet for Diverse Safety Rod Drive Mechanism

N. Subbulu[1], P. Sharma[1], V. Sharma[1], S.K. Das[1], R. Veerasamy[1], B. Krishnakumar[1], P. Kalyanasundaram[1], and G. Vaidyanathan[1]
[1] Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India

Prototype Fast Breeder Reactor (PFBR) has two independent, diverse, fast acting & fail safe shut down systems to achieve the required level of safety & reliability (1). The shut down systems comprises of nine numbers of Control & Safety Rod Drive Mechanisms (CSRDM) & three numbers of Diverse Safety Rod Drive Mechanisms (DSRDM). DSRDM facilitates SCRAM of the reactor on abnormal ...

Cellular Convection in Vertical Annuli at roof slab of Fast Breeder Reactor

M. G. Hemanath[1], C. Meikandamurthy[1], G. Padmakumar[1], C. A. Babu[1], P. Kalyanasundaram[1], and G. Vaidyanathan[1]
[1] Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India

In the pool type Fast Breeder Reactors the roof structure is penetrated by a number of pumps and heat exchangers which are cylindrical in shape. Argon gas in reactor is sandwiched between the free surface of sodium and the roof structure and can flow in the annular space between the components and roof structure forming a thermosyphon. These hermosyphons not only transport heat from sodium to ...

Modeling the Behavior of Phased Arrays in Brain Tissue: Application to Deep Brain Stimulation

V. Valente[1], A. Demosthenous[1], and R. Bayford[2]

[1]Department of Electronic & Electrical Engineering, University College London, London, United Kingdom
[2]Department of Natural Sciences, Middlesex University, London, United Kingdom

Deep Brain Stimulation (DBS) is a therapeutic tool used for a number of neurological disorders including chronic pain, incontinence and movement disorders, such as Parkinson’s disease. DBS consists of the low-frequency stimulation of an area of the brain, known as basal ganglia. The stimulation is provided by clinical implant, consisting of a pulse generator and an electrode lead ...

Thermal and Electrostatic Analyses of One Dimensional CFC Diagnostic Calorimeter for SPIDER Beam Characterisation

M. De Muri[1][2], M. Dalla Palma[1], P. Veltri[1], A. Rizzolo[1], N. Pomaro[1], and G. Serianni[1]
[1]Consorzio RFX, Euratom-ENEA Association, Padova, Italy
[2]Dipartimento di Ingegneria Elettrica, Padova University, Padova, Italy

The main purpose of SPIDER (Source for the Production of Ions of Deuterium Extracted from RF plasma) test facility is the investigation and optimization of a negative ion beam produced by the full size ion source for ITER NBIs (Neutral Beam Injectors). Thermal, transient, non-linear FE (Finite Element) analyses and also electrostatic analysis have been performed as a feasibility study, to ...

Radionuclide Transport Through Different Routes Near a Deposition Hole for Spent Nuclear Fuel

V-M.S. Pulkkanen[1]

[1]VTT, Technical Research Centre of Finland, Espoo, Finland

Radionuclide transport modeling is a part of the research concerning geological disposal of spent nuclear fuel. Typically, the transport models near a single deposition hole focus on the reactions of nuclides, while the model geometry and the flow of groundwater are often simplified. In this paper, instead, a radionuclide transport model in a detailed 3D geometry with no reactions is introduced. ...

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