Consultez les proceedings de la Conference COMSOL 2020
Design Of Acoustic Metamaterials Based On The Concept Of Dual Transmission Line
In this context, a one-dimensional acoustic transmission line, exhibiting metamaterial properties, is presented. It is composed of an acoustic waveguide, periodically loaded with membranes having the function of series capacitances, as well as transversally connected open channels ... En savoir plus
AlN/ZnO/Silicon Structure Combining Surface Acoustic Waves And Waveguiding Layer Acoustic Wave
In this work, the theoretical study for the realization of waveguiding layer acoustic waves devices based on AlN/IDT/ZnO/Silicon structure using the modeling software COMSOL Multiphysics (2D) is presented. The effect of thicknesses of AlN and ZnO thin films on the evolution of frequency ... En savoir plus
Magnetic Stimulation of the Human Brain with Low-Intensity Field
The most popular means of depression treatment are psychotherapy, antidepressant medication and recently adopted transcranial magnetic stimulation (TMS) of the human brain. To overcome their disadvantages we are investigating an application of low-field magnetic stimulation (LFMS) to ... En savoir plus
Using The Time Parameter As The Third Geometrical Dimension
The paper demonstrates that for some models a 2D geometry in Cartesian coordinates can be used to obtain a 3D solution with changes in z-direction. A heat exchanger serves as an example of a practical application. The required flow rate in a straight cooling pipe penetrating ... En savoir plus
Modelling Of Magnetoelectric Effects In Magnetostrictive/Piezoelectric Multi-Layers Using A Multiphysics Simulator
In this paper, we use COMSOL, finite element software, to compute the magnetodielectric effect in a multiferroic structure based on a {ferromagnetic /piezoelectric} multi-layer. We also investigate the potential tunable applications of such structures at microwave frequencies. In a first ... En savoir plus
Multiphysics Simulation of REMS hot-film Anemometer Under Typical Martian Atmosphere Conditions
The purpose of this paper is to describe numerical electro-thermal simulations of the REMS wind sensor unit and the results obtained by using COMSOL Multiphysics. This device is a hot-film anemometer for 2D wind measurements, which does not have movable parts and is based on the air ... En savoir plus
Prediction of Transformer Load Noise
Transformers, as any other industrial products, have to comply with various requirements on noise levels. Three main sources of noise can be identified in transformers: no-load noise or core noise generated by magnetostriction in the core steel laminations, load noise produced by ... En savoir plus
Heat Output From Space Heating Radiator With Add-On-Fan Blowers
In a hydronic space heating system the heat output arises from natural convection and radiation from the radiators. In order to increase the heat output, without replacing the radiators with larger ones, or increasing the temperature level, the radiator can be equipped with add-onfan ... En savoir plus
Mathematical Modeling Of Traveling-Wave Electroosmotic Micropumps By Using Of The Weak Form
This contribution is devoted to the mathematical modeling of the AC electroosmotic micropumps in COMSOL Multiphysics and Matlab. The mathematical model involves the microchannel surroundings and several AC-voltage driving modes. The weak form has been used for handling singularities and ... En savoir plus
Modelling Flow through Fractures in Porous Media
There are various alternative options concerning modeling fluid flow within fractures in porous media. We give a general overview, with remarks concerning the modeling using COMSOL Multiphysics. Moreover we define and study two test cases for intercomparison. Finally for one of the ... En savoir plus