Consultez les proceedings de la Conference COMSOL 2020
The results of two thermal response tests recently performed on two vertical borehole heat exchangers (BHEs) are presented. The BHEs have the same cross section and a depth of 100 m and 120 m respectively. The evaluation of the thermal properties of the ground and grout are performed by ... En savoir plus
Small nuclear ribonucleoprotein particles (snRNPs) are essential supramolecular complexes involved in pre-mRNA splicing, the process of post-transcriptional RNA modifications. The particles undergo complex assembly steps inside the cell nucleus in a highly dynamic compartment called the ... En savoir plus
It was suggested long ago that a theoretical model of a near-cathode region in a DC glow discharge admits multiple steady-state solutions describing different modes of currrent transfer. Even the most simple self-consistent models should admit such multiple solutions. In the present ... En savoir plus
Electro-thermal interaction is commonly considered only as a matter of joule heating. In addition, the Seebeck-, Peltier- and Thompson-Effects are significant in materials with high thermoelectric figure of merit Z. These thermoelectric materials have a high Seebeck-coefficient α, a good ... En savoir plus
The specular and diffuse reflection properties of sunlight at the rear surface of silicon solar cells with various degrees of roughness are computed by solving the Maxwell and material equations in two dimensions, using the COMSOL RF Module. The model is tested on planar Si/SiO2/air ... En savoir plus
Manuel Collet is a member of the Department of Applied Mechanics of the FEMTO-ST Institute. He graduated with a degree in Mechanical Engineering from Ecole Centrale de Lyon in 1992 and obtained his PhD in 1996 about Active control of vibrating structures by mean of semi distributed ... En savoir plus
Aluminum alloys in near-neutral, mildly aggressive solutions, undergo damage accumulation during corrosion, mostly due to the presence of micrometer-sized constituent intermetallic particles (IMP) that create a microstructural discontinuity at which localized corrosion occurs. The ... En savoir plus
We describe the modeling of microdisk lasers displaying vertical emission. The devices are THz quantum cascade lasers with metallic gratings fabricated along the circumference. The emission properties of the fabricated devices are well explained by the model, good mode control is ... En savoir plus
Disposal in deep clay geological formations is one of the promising options for disposal of high-level radioactive waste. Yet, they can generate considerable amounts of heat as a side effect of radioactive decay. This paper shows how COMSOL Multiphysics has been used to evaluate the ... En savoir plus
An estimation method, known as Thermal Response Test, of the soil thermal properties necessary to the design of a borehole geothermal energy storage system is discussed in relation to its application to the ground having non–homogeneous composition. The governing equations of the ... En savoir plus