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.

CVD Graphene Growth Mechanism on Nickel Thin Films - new

K. Al-Shurman[1], H. Naseem[2]
[1]The Institute for Nanoscience & Engineering, University of Arkansas, Fayetteville, AR, USA
[2]Department of Electrical Engineering, University of Arkansas, Fayetteville, AR, USA

Chemical vapor deposition is considered a promising method for synthesis of graphene films on different types of substrate utilizing transition metals such as Ni. However, synthesizing a single-layer graphene and controlling the quality of the graphene CVD film on Ni are very challenging due to the multiplicity of the CVD growth conditions. COMSOL Multiphysics® software is used to investigate ...

Thermo-fluid Dynamics Modelling of Hydrogen Absorption and Desorption in a LaNi4.8Al0.2 Hydride Bed

D. Baldissin[1] and D. Lombardo[1]
[1]Compumat S.r.l., Torino, Italy

A two-dimensional mathematical model for the absorption and desorption of H2 in LaNi4.8Al0.2 was developed and experimentally validated. The model is composed of an energy balance, a mass balance and a momentum balance. These differential equations are numerically solved by means of the finite element method using the software COMSOL Multiphysics®. From a comparison between theoretical ...

Error Analysis in Estimating Temperature-Dependent Thermal Diffusivity and Kinetic Parameters using Heat Penetration Data

K.D. Dolan[1,2], A.R. Sommerlot[1], and D.K. Mishra[1]
[1]Department of Biosystems and Agricultural Engineering, Michigan State University, East Lansing, Michigan, USA
[2]Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, USA

Growing consumer demand for nutraceuticals has stimulated interest by food companies to increase levels of these health-promoting compounds. Thermal processing of canned foods in a retort produces a unique problem: some of the nutraceuticals are highly sensitive to temperature, and require accurate parameter estimates to predict their fate during processing. Error in temperature measurement due ...

Electrochemically Driven Transport in Nanopores and Membranes

H. White
University of Utah

In this presentation we outline the analysis methods applicable to the electrochemical driven transport in nanopores and membranes. This is a modern and ever growing research area with many different applications, some examples are: • iontophoretic drug delivery across skin, • protein ion channel based sensors, • resistive pulse counting of nanoparticles, • 3-D microbattery ...

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 ...

Transport of Vocs through Bioflim in Biotrickling Filters

Balasubramanian P[1]
[1]Indian Institute of Technology Madras, Chennai, Tamil Nadu, India

Realising the interlinkage of nature and engineering are of paramount essential while comprehending the basics of system’s performances. Application of biotechniques in air pollution control is one such emerging scientific area, where the understandings of these complex systems demand more utilisation of computing softwares. Recently, biofiltration is a versatile biological air pollution ...

COMSOL Multiphysics for Efficient Solution of a Transient Reaction-Diffusion System with Fast Reaction

M.K. Gobbert[1], A. Churchill[1], G. Wang[1], and T.I. Seidman[1]
[1]Department of Mathematics and Statistics, University of Maryland, Baltimore County, Baltimore, Maryland, USA

A reaction between chemical species is modeled by a particular reaction pathway, in which one reaction is very fast relative to the other one. The diffusion controlled reactions of these species together with a reaction intermediate are described by a system of three transient reaction diffusion equations over a two-dimensional spatial domain. In the asymptotic limit of the reaction parameter ...

Modeling of High-Temperature Ceramic Membranes for Oxygen Separation

J.M. Gozálvez-Zafrilla[1], J.M. Serra[2], and A. Santafé-Moros[1]

[1]Chemical and Nuclear Engineering Depart., Universidad Politécnica de Valencia, Valencia, Spain
[2]Instituto de Tecnología Química, Valencia, Spain

Oxygen transfer through ceramic membranes at high-temperature can substantially reduce costs respect to conventional separation methods. With the aim to improve the determination of the properties of the ceramic materials, a lab-scale permeation set-up was modeled using the Chemical Engineering Module of COMSOL Multiphysics®. The solution required the coupling of three domains. Gas flow was ...

Thermal Dissipation of DIMM Modules in a Tower-BTX Configuration

G. Sorge, G. Cammarata, and G. Petrone
University of Catania

In this paper we study the natural convection for Dual In-Line Memory Module (DIMM) systems. Numerical models are developed using COMSOL Multiphysics. The results, obtained for imposed ambient temperature and operative conditions (power supplied to the CPUs) were produced and complex fluid motion field could be detected.

Design of the Nanoexposure Chamber with COMSOL Multiphysics

Y.-C. Chan1, F.-Y. Li1, and C.-T. Lin2
1Department of Chemistry, National Chung Hsing University, Taiwan
2Department of Applied Mathematics, Providence University, Taiwan

The purpose of this study is to design a chamber for exposing hamsters to nanoparticles and to therefore examine the toxicity of that particular kind of nanoparticles. This simulation was employed to study the fluid dynamic behavior of the nanoparticle inside the chamber to determine the optimal conditions for the location and flow speed of the inlet for nanoparticles and a carrier, inert ...

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