研究開発におけるマルチフィジックスシミュレーションの具体例
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COMSOL コンファレンス 2020 論文集を見る
Numerical Quasi Stationary and Transient Analysis of Annular Linear Electromagnetic Induction Pump
In this paper an axisymmetric model of annular linear electromagnetic induction pumps using numerical methods and four approaches (two transient and two quasi-stationary) with different complexity is studied. Comparison of integral characteristics is performed between numerical ... 詳細を見る
Modeling of Resonant Optical Trapping in a 2D Photonic Crystal Cavity
Photonic crystals (PhC) are optical nanostructures that are widely known for their strong spatial and temporal confinement of electromagnetic radiation. Here, we study the resonant optical trapping of a single nanoparticle within a hollow circular photonic crystal cavity. The ... 詳細を見る
Investigation on an Encircling Pulsed Eddy Current Probe Performance Using COMSOL Multiphysics®
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 ... 詳細を見る
Design Optimisation of an Field Free Point Magnetic Particle Imaging scanner
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 ... 詳細を見る
Adaptive Numerical Simulation of Streamer Propagation in Atmospheric Air
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 ... 詳細を見る
Self-Consistent Modeling of Thin Conducting Wires and Their Interaction with the Surrounding Electromagnetic Field
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 ... 詳細を見る
Homogenization Approaches for Laminated Magnetic Cores Using the Example of Transient 3D Transformer Modeling
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 ... 詳細を見る
Electrochemical Study of Potential Materials for Cochlear Implant Electrode Array
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 ... 詳細を見る
A Novel Mechanical Stress Measurement Method Applied to Wind Turbine Rotor Blades
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 ... 詳細を見る
Towards Optimized Neural Stimulation in a Device for Urinary Incontinence
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 ... 詳細を見る