Articles techniques et présentations

In power electronics applications, microelectronic chips face swift temperature changes during operation, characterized by heat pulses of sub-millisecond duration with temperatures rising by hundreds of Kelvin. Over time, these conditions may lead to degradation in the metallization ... En savoir plus

In some power electronic applications the available coolant temperature is close to maximum and controlling operating temperature becomes more challenging, for which new thermal management schemes must be considered. COMSOL predicts the 3D fluid behavior and 3D temperature distribution ... En savoir plus

Introduction Most current thermoregulation models represent the body in significantly simplified forms, e.g., cylinders or spheres. These simple geometries do not fully represent the complexity of bones, organs, etc. contained in the human body. Modern medical technologies allow for more ... En savoir plus

To achieve the goals of the Paris Agreement and limit global warming below 2 K compared to pre-industrial level, significant energy savings in all fields of industries will be required. One example of energy intensive processes in industrial fabrication is heat treatment. The applied ... En savoir plus

Microfluidics and Biosensors are two principal fields that paved the way for the inception of Lab-on-a-chip (LOC) which provides early and cost-effective disease detection, from monitoring to treatment. LOC is a device that uses very small amounts of fluid on a microchip to do certain ... En savoir plus

The objective of this paper is to study the effects of compliance mismatch in a stented artery. COMSOL Multiphysics is used to tackle this challenging problem involving fluid-structure interaction. The particular effects studied in this paper are the radial displacement of the artery ... En savoir plus

An accelerometer detects acceleration and tilt of a device. There are several areas where accelerometers are in use, e.g. aerospace, navigation, automotive industry, electronic gadgets etc. According to different working principle, there are different types of accelerometer, e.g. piezo ... En savoir plus

Curing concrete is best achieved by keeping it nearly saturated at an appropriate temperature until all the cement has fully reacted. However, when installing flooring materials that require low relative humidity (RH) in the concrete, the slab needs to dry as quickly as possible. ... En savoir plus

The EPFLoop team from Lausanne last year won the 3rd place in SpaceX’s Hyperloop Pod Competition in 2018. This year the team will participate at the 2019 Competition held at the SpaceX facilities California. Reliability of the different subsystems constituting the pod is a key point. ... En savoir plus

The blast furnace shaft is a huge counter flow reactor in which heat and mass exchange play a significant role in its mathematical modelling. The heat exchange model is already available in COMSOL Multiphysics® via the Local Thermal Non-Equilibrium interface. This multiphysics coupling ... En savoir plus