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.

Finite Element Model based Optimization of Pulsed Eddy Current Excitation Rise Time

N. N. Bharadwaj [1], V. Arjun [1], B. Purnachandra Rao [1]
[1]Indira Gandhi Centre for Atomic Research, Kalpakkam, India

Non-destructive Evaluation (NDE) techniques are widely used for early detection of defects in engineering components without impairing their future usefulness. Among them, Eddy Current (EC) technique is used for detection of defects in electrically conducting materials and it is known for its high speed inspection and reliability. Conventional EC technique uses sinusoidal excitation and has ...

Effect of Viscosity of Food on Digestion and Nutrient Absorption in the Human Small Intestine

J. S. Karthikeyan [1], D. Salvi [1], M. V. Karwe [1],
[1] Rutgers University, New Brunswick, NJ, USA

Digestion is the process of breaking down food into smaller components, by mechanical and enzymatic action in the digestive tract, so that the smaller nutrient molecules can be more easily absorbed in the intestinal tract. To study and analyze the human digestive process, different methodologies have been used in the past. In general, in vivo feeding studies with humans provide the most accurate ...

A Multi-Physics Study of the Wave Propagation Problem in Open Cell Polyurethane Foams

M. Dossi [1], M. Brennan [1], M. Moesen [1],
[1] Huntsman Polyurethanes, Everberg, Belgium

Flexible and semi-rigid polyurethane foams are widely used as noise and vibration damping materials. Their porous random microstructure is composed of a visco-elastic frame structure with an interstitial fluid, normally air, filling the voids. The viscoelasticity of the foams is due to the polymer morphology in the foam skeleton structure, which can be adapted depending on application ...

Calibration of a Bio-Kinetic Model to Simulate Microalgae Growth - new

A. Solimeno[1], J. Garcia[2]
[1]Department of Hydraulic, Maritime and Environmental Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
[2]Universitat Politecnica de Catalunya, Barcelona, Spain

The aim of present work is to present and calibrate a new mechanistic model that includes physical and biokinetic processes to reproduce the algae growth in photobioreactor or ponds during long-term scenarios. A COMSOL Multiphysics® model is used to implement the microalgae processes mainly based on River Water Quality Model 1 (RWQM1) (Reichert et al., 2011). The main innovation of the model is ...

Modeling of Wettability Alteration during Spontaneous Imbibition of Mutually Soluble Solvents in Mixed Wet Fractured Reservoirs - new

M. Chahardowli[1], H. Bruining[1]
[1]Delft University of Technology, Delft, The Netherlands

Mutually-soluble solvents can enhance oil recovery both in completely and partially water wet fractured reservoirs. When a strongly or partially water-wet matrix is surrounded by an immiscible wetting phase in the fracture, spontaneous imbibition is the most important production mechanism. Initially, the solvent moves with the imbibing brine into the core. However, upon contact with oil, as the ...

Modeling Thermal Effects of Battery Cells Inside Electric Vehicle Battery Packs

M. R. Khan [1], S. K. Kær [1],
[1] Department of Energy Technology, Aalborg University, Aalborg, Denmark

The poster presents a methodology to account for thermal effects on battery cells to improve the typical thermal performances in a pack through heating calculations generally performed under the operating condition assumption. The aim is to analyze the issues based on battery thermo-physical characteristics and their impact on the electrical state of battery cells(Khan, Mulder et al. 2013, Khan, ...

Sensibility Analysis of Inductance Involving an E-core Magnetic Circuit for Non Homogeneous Material

K. Z. Gomes [1], T. A. G. Tolosa [1], E. V. S. Pouzada [1],
[1] Mauá Institute of Technology, São Caetano do Sul, SP, Brazil

In this work, a methodology is developed, based on the application of finite element method in the frequency domain, using the COMSOL Multiphyics software, aiming the sensibility analysis of inductance calculation involving some configurations of an E-core magnetic circuit. Such important analysis, are made from several geometries and considering different frequencies for the source current ...

Simulation of Nanopores in Capacitive Energy Extraction Based on Double Layer Expansion (CDLE)

E. Ruiz-Reina [1], F. Carrique [2], A.V. Delgado [3], M.M. Fernández [3],
[1] Department of Applied Physics II, University of Málaga, Málaga, Spain
[2] Department of Applied Physics I, University of Málaga, Málaga, Spain
[3] Department of Applied Physics, University of Granada, Granada, Spain

Capacitive energy extraction based on double layer expansion (CDLE) is a new method devised for extracting energy from the exchange of fresh and salty water in porous electrodes. First suggested by D. Brogioli, it is enclosed in a group of emergent technologies jointly known as Capmix methods. The CDLE technique is based on the fact that the capacitance of the electric double layer (EDL) ...

Developing Solutions to Tonal Noise from Wind Turbines Using COMSOL Multiphysics® Software

J. M. Stauber [1], B. A. Marmo [1],
[1] Xi Engineering Ltd, Edinburgh, United Kingdom

Tonal noise from wind turbines can have effects on neighboring residences and its emission can result in strong regulatory penalties that can include the closure of wind farms. The authors present a model of a new broadband damping approach where containers filled with EniDamp™, an Advance Particle Damping (APD) material. The containers, so-called APD pods, are magnetically fixed to wind ...

Modeling the Effect of Headspace Steam on Microwave Heating of Mashed Potato - new

J. Chen[1], K. Pitchai[1], D. Jones[1], J. Subbiah[1]
[1]University of Nebraska-Lincoln, Lincoln, NE, USA

Introduction: Domestic microwave ovens are widely used to heat food products, because of rapid and convenient heating. Nonuniform heating is the biggest issue in microwave heating process, which also causes food quality and safety issues. Microwave heating models are promising tools to assist in developing food products that deliver uniform heating. Due to intensive heating, moisture evaporation ...