Consultez les proceedings de la Conference COMSOL 2020
Considerations Regarding the Design of a Power Ultrasonic Transducer with Flat Rectangular Plate
There are several industrial applications, like food dehydration, atomization and textile washing among others, that are enhanced by the use of power ultrasonic transducers with flat rectangular plate radiator. These transducers are composed by three main parts, the piezoelectric ... En savoir plus
Natural Convection Effects on the Solidification in Cylinders at Different Filling Percentages
The solidification of a fluid in a partially-filled circular cylinder is encountered in a number of industrial processes and in the oil and gas sector. The characteristics of the process depends on various fluid and geometrical parameters. In the current study, a fluid with temperature ... En savoir plus
A Multi-Physics Study of the Wave Propagation Problem in Open Cell Polyurethane Foams
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 ... En savoir plus
Validation of COMSOL Multiphysics® for PWR Power Distribution via 3D IAEA PWR Benchmark Problem
Design of the Pressurized Water Reactors (PWRs) involves extensive calculations to verify the reactor safety criteria such as power peaking factor during the reactor lifetime. Coupling of neutronic calculations, thermal hydraulic calculations and other reactor phenomena requires a ... En savoir plus
Level-Set based Topology Optimisation of Convectively Cooled Heatsinks
Introduction Thermal management is a key challenge in development of modern microelectronics systems. This is becoming an increasingly critical area of microelectronics packaging design due to the ever increasing levels of miniaturisation, integration and operating frequency which result ... En savoir plus
Multiphysics Simulations for the Design of a Superconducting Magnet for Proton Therapy
The use of proton therapy for cancer treatment shows a growing trend, since the radiation dose delivered to the target volume is maximized and the dose to the surrounding healthy tissues is minimized. To direct the proton beam from all directions to the tumor in the patient, the last ... En savoir plus
A 3D Multiphase Flow Model of Hydrogen Storage in Geological Formations
Renewable energies generate temporary mismatches between energy demand and supply. The conversion of surplus energy to hydrogen and its storage in geological formations is one option to balance this energy gap. Storage in deep saline aquifers is the most cost-effective option for ... En savoir plus
3D Acoustic-Structure Interaction of Ultrasound in Fluids for the Manufacture of Graded Materials
Functionally graded materials (FGM) are those that contain chemical, phase or structural gradients. Whilst the design of functionally graded structures is well researched in areas such as shape optimisation and topology optimization, their manufacture is still in development. One ... En savoir plus
Heat and Moisture in Wooden Bearings of Monuments
Nowadays, thermal insulation is applied to most buildings. However, this proves to be a challenge for most monumental buildings. When insulation needs to be applied at the interior side of a building, thermal bridges are inevitable. Wooden beam ends beared in an external wall are an ... En savoir plus
Transient Process Simulation of Heat Transfer in Laser Beam Welding with an Equivalent Heat Source
The Finite Element Method (FEM) has become an established numerical tool used for different academic and industrial purposes. It allows the prediction of weld pool geometry, thermal cycle, final distortion and residual stress field during and after fusion welding. The capability of the ... En savoir plus