Consultez les proceedings de la Conference COMSOL 2020
The development of a quantitative nondestructive evaluation method, as an alternative to visual inspection, for inspecting pre-tensioned bolts in fracture critical bridges is presented. In order to understand the ultrasonic behavior of a wide variety of bolt geometries used in bridges, ... En savoir plus
Microwave imaging has been recently proposed as a potentially useful screening technique for breast cancer. This method detects abnormalities in the tissue based on permittivity difference between breast normal and malignant tissue. In this method breast is illuminated by high frequency ... En savoir plus
The novel Micro Electro Mechanical System (MEMS) based Piezoresistive stain sensor is presented in this paper. The main goal of this sensor is to monitor the localized strain in the highway bridges especially near the crack tips. Monitoring the crack growth on the bridges can lead to ... En savoir plus
This paper investigates the evolution of a single bubble going through growth, pinch-off, and condensation while rising due to buoyancy forces in a sub-cooled liquid. Phase change is modeled on the evolving liquid-vapor interface by considering changes in enthalpy and heat fluxes at the ... En savoir plus
The High Flux Isotope Reactor, located at the Oak Ridge National Laboratory, is scheduled to undergo a conversion of the fuel used and this proposed change requires an extensive analysis of the flow through the reactor core. The core consists of approximately 500 very thin and long fuel ... En savoir plus
The specification of cell types and morphogenesis of many biological systems are regulated by the concentrations of signalling molecules. Many systems employ a pair of secreted short-range activators and long-range inhibitors, and these are widely used to generate complex patterns during ... En savoir plus
Many application problems have non-smooth forcing terms, such as the Dirac delta function. The convergence order for the FEM solution is limited by the regularity of the solution in this case. This paper presents information on the techniques needed in COMSOL 4 to enable FEM convergence ... En savoir plus
The US Advanced Battery Consortium (USABC) has established goals for long term commercialization of advanced batteries for electric vehicle applications. In this work, a dual lithium-ion insertion cell with silicon as the negative electrode and an intercalation material as the positive ... En savoir plus
The flow of electrically conducting fluids such as liquid metals is significantly affected by applied electric and magnetic fields. The effect has important industrial applications in metallurgy, nuclear technology and other fields. This paper described results of a series of studies ... En savoir plus
Eddy current phenomena in conducting magnetic media are well understood, although the detailed behavior at high drive levels leading to magnetic saturation are not always well explained. This paper considers the example of an infinite cylindrical magnetic core with an external coil. At ... En savoir plus