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.

Toward Energy Zero Building: A COMSOL Multiphysics® Model of Building and its HVAC System - new

F. Bruno[1]
[1]ENERSPACE Srl, Genoa, Italy

A model built with COMSOL Multiphysics® to exploit meteorological forecasts and instant outdoor meteorological data (temperature, solar radiation, moisture, wind speed and direcition, etc.) together with indoor ambient data (air temperature, radiant temperature of enclosures, etc), building parameters (mass, orientation, surface, structural composition, etc.) and historical consumption of ...

Equation-Based Modelling: True Large Strain, Large Displacement and Anand's Plasticity Model with COMSOL's Moving Mesh Application Mode

O. Toscanelli[1], V. Colla[1], and M. Vannucci[1]

[1]Scuola Superiore S. Anna, Pontedera, PI, Italy

In this work the solution of the structural problem obtained by mean of the velocity approach is presented. More in detail the balance and constitutive equations are expressed in Eulerian form, the mesh is not material. The approach is general, is suitable both for material boundary or no-material boundary and for a generic material model. The Hooke's elastic model and the Anand's plasticity ...

Modeling Dispersal of Genetic Information in Structured Agricultural Landscapes with Partial Differential Equations

K. Lipsius, and O. Richter
Institute of Geoecology, TU Braunschweig, Germany

We present a model for plant dispersal in agricultural landscapes to evaluate the gene dispersal from genetically modified (GM) plants. Dispersal from seed and pollen is modeled with partial differential equations. In scenarios, we investigated the effect of roadside application of non-selective herbicides on dispersal of herbicide tolerant oilseed rape (HT OSR). We showed that OSR growing on ...

COMSOL Multiphysics® Simulations of Cracking in Point Loaded Masonry with Randomly Distributed Material Properties

A.T. Vermeltfoort[1], A.W.M. van Schijndel[1]
[1]Eindhoven University of Technology, Eindhoven, The Netherlands

This paper describes COMSOL Multiphysics® simulations of the stress and crack development in the area where a masonry wall supports a floor. In these simulations one of the main material properties of calcium silicate, its E-value, was assigned randomly to the finite elements of the modeled specimen. Calcium silicate is a frequently used building material with a relatively brittle fracture ...

Fracture on Circuit Board Internal Layers Due to Thermal Stress on Soldered Pins

F. Figueroa[1], P. Aguirre[1]
[1]Sensor Technik Wiedemann GmbH, Kaufbeuren, Germany

Circuit board failures are often ignored because they could be impreceptible. This simulation examines how internal layers around a soldered pin via subject to temperature changes during the soldering process are affected, show the forces involved and determine breaking points. A 2D thermo-mechanical model of a soldered pin is achieved in two simulation steps. First, a connecting pin already ...

Optimization of Micro-Structured Waveguides in Lithium Niobate (Z-Cut) - new

H. Karakuzu[1], M. Dubov[1], S. Boscolo[1]
[1] Aston University, Birmingham, UK

We present an optimization procedure to improve the propagation properties of the depressed-cladding, buried micro-structured waveguides formed in a z-cut lithium niobate (LN) crystal by high repetition rate femtosecond (fs) laser writing. It is shown that the propagation wavelength for which the confinement losses of ordinary (O) and extraordinary ordinary (E) polarizations are below 1 dB/cm ...

Use of COMSOL as an Educational Tool Through its Application to Ground Water Pollution

A. Modaressi-Farahmand-Razavi[1]
[1]MSS-Mat Laboratory, CNRS, Ecole Centrale Paris, Châtenay Malabry, France

Ensuring the quality of underground water and controlling its quantity is of major concern for the population. Therefore, this subject attracts many students from different specialties at different levels of their curriculum. In fact, the pedagogic objectives of the course may be different according to the level or/and interest of the students and COMSOL is used due to its versatility. In this ...

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 ...

Is Experimentation More Intuitive?

R. Venkataraghavan
Unilever R&D
Bangalore, India

Venkataraghavan is the Discover Category Leader, Water, working at the interface of Science, Technology and Business, for developing solutions and products for water purification at Unilever R&D, Bangalore. He joined Unilever in 2002 and earlier worked in interfacial science, materials science and electrodynamics for the Laundry Category. Venkataraghavan also had a stint with Unilever Technology ...

Rapid Control Prototyping for the Production of Functionally Graded Materials with Tailored Microstructural Properties Utilizing Comsol Multiphysics

J. Clobes[1,2], H.-J. Watermeier[2], M. Alsmann[2], H. H. Becker[2], and K. Steinhoff[1]
[1]University of Kassel - Chair of Metal Forming Technology, Kassel, Germany
[2]Volkswagen AG, Kassel, Germany

Within the field of hot metal bulk forming the demand arises for fully three-dimensionally tailored properties at the microstructural level, nevertheless, reaching a predefined geometry with such tailored properties puts high requirements on the control mechanisms utilized in the process chain for combined heating, metal forming, and cooling processes. A simulation based rapid control ...