Consultez les proceedings de la Conference COMSOL 2024
Conventional eddy current techniques have been used to a great extent for detection of surface breaking defects in conductive materials. However, detection of sub-surface defects is limited due to the single frequency and skin effect phenomena. Pulsed Eddy Current (PEC) techniques ... En savoir plus
Magnetic Particle Imaging (MPI) is a new imaging technology based on the non-linear magnetisation of magnetic nanoparticles which can be used as a tracer material. In a high speed 1D MPI Device, a sinusoidal signal containing a single frequency generate a time-varying magnetic field via ... En savoir plus
Simulations of streamer discharge was performed by utilizing a space adaptive numerical scheme based on logarithmic representation of mass conservation equations, which governs the transport of charge carriers. Implementation of a model, which describes the propagation of a streamer in ... En savoir plus
It is demonstrated how the RF Module of COMSOL Multiphysics® can be used to approximately model thin conducting wires or cables and how they interact with a surrounding electromagnetic field. Despite being non-stringent the method can reasonably well predict currents induced by an ... En savoir plus
A specific issue in transformer modeling using the finite element method is the consideration of electric sheets or other laminated core materials which are used to reduce eddy currents. It would be impractical to explicitly model a large number of sheets as this would lead to a large ... En savoir plus
Cochlear Implants (CIs) are implantable prostheses that bypass the non-functional inner ear and directly stimulate the auditory nerve with electric currents, enabling deaf people to experience sound again. The CI electrode array sits inside the cochlea close to the auditory neurons. An ... En savoir plus
Rotor blades for wind turbines are made of GFRP material. They have to be designed to withstand wind and weather over their approximately 20 years of lifetime. The ability to monitor the mechanical stress is crucial in order to reduce maintenance costs and to maximize operational ... En savoir plus
After spinal cord injury (SCI) the functions of the lower urinary tract are often disrupted and may have fatal consequences for the patient. It has been shown that using a transrectal probe developed by Craggs et al., through conditional transrectal stimulation of pudendal nerve, it is ... En savoir plus
This article considers a closed water circuit with square cross section filled with an electrolyte fluid. The conductor fluid was moved using an electromagnetic pump, in which a permanent magnet generates a magnetic field and electrodes generate the electric field in the flow. Thus, the ... En savoir plus
We report an implementation of parallel computing on Amazon Web Services™ (AWS) for touch-sensor modeling. COMSOL Multiphysics® was used to simulate an electromagnetic field distribution in a capacitive sensor assembly. Multiple COMSOL jobs were deployed on separate AWS instances and ... En savoir plus