Fudan University, Shanghai, China
COMSOL Multiphysics is a powerful tool in theoretical study. Lei Zhou, Jiping Huang and other professors in Physics Department, Fudan University have achieved some exciting results of soft, tunable metamaterials. We use it to study non-equilibrium behavior of rhoeological (ER) fluids and polar molecule dominated rheological (PM-ER) fluids. Numerical solutions using the Onsager’s principle would ...
Interpretation of Measurements with Novel Thermal Conductivity Sensors Suitable for Space Applications
N. I. Kömle, G. Kargl, E. Kaufmann, J. Knollenberg, and W. Macher
Space Research Institute, Austrian Academy of Sciences, Graz, Austria
DLR Institut für Planetenforschung, Berlin, Germany
Thermal conductivity of near surface soil layers is a key parameter for understanding the energy balance of planetary bodies. To measure this property, heated needle sensors are frequently used in field and laboratory applications. To adapt this type of sensors for application on space missions, various modifications have to be implemented. An example for such a modified sensor is the so ...
I. Bodey, R. Arimilli, and J. Freels
Dept. of Mechanical, Aerospace and Biomedical Eng., The University of Tennessee, Knoxville, TN
Research Reactors Division, Oak Ridge National Laboratory, Oak Ridge, TN
The High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL) is an 85 MW, light-water moderated, research reactor that operates at low temperature and high pressure. The HFIR is presently scheduled to convert from a high enriched uranium fuel (HEU) to a low enriched uranium fuel (LEU) in 2019. Due to cost constraints, not all experiments will be repeated for the LEU fuel ...
H. T. D. Grigg, and B. J. Gallacher
Newcastle upon Tyne
Tyne and Wear, UK
This paper presents ongoing research aimed at development of a MEMS magnetometer capable of nanoTesla sensitivity. Such a device would pave the way for inertial-grade MEMS IMUs. A resonant sensor is proposed, based on a Xylophone Bar sense element, and is analysed both directly and via COMSOL. Mode shapes and frequencies are found as functions of geometric parameters, and the results used ...
Simulation Studies on Stress Generation and Volume Expansion due to Electrochemical Lithium Insertion in a Silicon Nanowire
G. Sikha, and J. Gordon
Applied Materials, Inc.
Santa Clara, CA
Silicon electrodes are presently being pursued as the potential negative electrode for lithium-ion batteries owing to its high gravimetric (mAh/g) and volumetric capacity (mAh/L) compared to the existing state of the art graphite electrode. Recent experimental studies have demonstrated the use of nano size Si electrodes which minimizes insertion induced stresses due to facile strain ...
A.E. Idiart, M. Pekala, A. Nardi, D. Arcos
Amphos 21, Barcelona, Spain
The Swedish Organization for Radioactive Waste (SKB) is considering disposal High Level Wastes in a deep underground repository. Bentonite clay is planned to be used in the near-field of the waste packages as buffer material. The buffer is expected to provide a favorable environment with limited radionuclide migration due to slow diffusion and retardation by sorption and cation-exchange effects. ...
Viscoelastic Mechanical Analysis for High Temperature Process of a Soda-Lime Glass Using COMSOL Multiphysics
Material and Production Engineering Department, University of Naples “Federico II”, Naples, Italy
Glasses are widely used in the modern industry. For high temperature the glass behaves very much like a Newtonian liquid with temperature-dependent viscosity. The goal of this study is to set a numerical procedure in order to study the glass forming process of soda-lime glasses used in the automotive field by means numerical simulations.
3D Stationary and Temporal Electro-Thermal Simulations of Metal Oxide Gas Sensor Based on a High Temperature and Low Power Consumption Micro-Heater Structure
N. Dufour, C. Wartelle, P. Menini
LAAS-CNRS, Toulouse, France
Renault, Guyancourt, France
The aim of this work was to simulate the electro-thermal behavior of a micro-hotplate used as a gas sensor, in order to compare the obtained results with a real structure. The structure has been designed in 3D and a stationary and a temporal study has been realized.
H. Fuqua, G. Delory, I. de Pater, R. Grimm
University of California - Berkeley, Space Sciences Lab, Berkeley, CA, USA
University of California - Berkeley, Berkeley, CA, USA
Southwest Research Institute, Boulder, CO, USA
Electromagnetic sounding measurements utilize magnetic induction to constrain the interior geophysical properties of planetary bodies. Under some conditions, the Earth’s moon can be approximated by the response of a conducting sphere in a vacuum. Transient magnetic fields originating from the sun can interact directly with the moon, producing eddy currents that generate an induced magnetic ...
Relevance of Hydro-Mechanical-Chemical Processes Involved in the Construction and Operation of Copper Heap Leach Pads
M. Tincopa, A. Nardi, G. Roman-Ross , J. Molinero
Technic University of Catalonia (UPC), Barcelona, Spain
Amphos 21 Consulting, Barcelona, Spain
Heap leaching in the mining industry had become a sophisticated practice at least 500 years ago. It is a mineral processing technology whereby piles of crushed Run-of–Mine rock are leached with chemical solutions to extract minerals. The goal of this work is to contribute to the understanding of the behavior of a heap leach pad by using coupled Hydro-Mechanical-Chemical simulations. COMSOL ...