Application of Kelvin's Inversion Theorem to the Solution of Laplace's Equation Over a Domain That Includes the Unbounded Exterior of a Sphere
Florida Institute of Technology, Melbourne, FL, USA
In simulating physical systems modeled as solutions of partial differential equations over an unbounded domain, a challenge arises owing to the impossibility to cover an unbounded domain with a mesh. A classical problem in fluid dynamics, a solid sphere of radius a_s is submerged in a tank of water (at rest) of much larger size. The water is disturbed by the sphere’s sudden acceleration in the z ...
R. P. Ruby, G. Kulkarni, U. Kanade
Noumenon Multiphysics Pvt. Ltd., Pune, Maharashtra, India
Oneirix Engineering Laboratories Pvt. Ltd., Pune, Maharashtra, India
Seals or gaskets that are compressed between walls of a container are important to many industrial applications. Understanding the performance of such seals requires an understanding of the microscopic geometry of the sealing surfaces, because the fluid seeps around the undulations of such surfaces. This paper presents strong computational evidence that the microgeometry of such surfaces depends ...
J. T. Andrews, R. Choubey, O P Choudhary, N. Malviya, A. Patel, M. Kumar, S. Chouksey, J. Solanki
National MEMS Design Center, Department of Applied Physics, Shri G S Institute of Technology & Science, Indore 452003 MP, India
A logic gate performs a certain Boolean logic operation on one or more logical inputs and produces a single logical output. The logic values are either “true” or “false.” Logic gates are bistable devices, that is, they may yield one of these two possible stable outputs. The NAND logic is a universal gate; any logic operation can be performed with various combinations of NAND logics. Many ...
F. Eppner , P. Pasquier , P. Baudron ,
 École Polytechnique de Montréal, Montréal, QC, Canada
Standing column wells (SCW) are open-loop geoexchange systems used to provide space heating and cooling to buildings. As they use groundwater as heat carrier fluid and modify its thermo-chemical conditions along the year, they may favor calcite dissolution and precipitation, thus increasing maintenance costs. In order to predict the thermo-hydro-chemical (THC) processes occurring in a SCW and ...
N. Rezaii , J. P. Mai ,
 JPM Silicon GmbH, Braunschweig, Germany
The JPM Silicon GmbH presents a novel method for the production of solar grade silicon in the microwave oven. This method can specially reduce the energy costs and increase the efficiency of the process. A numerical model is developed which depicts the physical, chemical and electromagnetic phenomena of silicon production process. In order to increase the efficiency of the system, it is ...
Tianyong Gong ,
 Southwest Jiaotong University, Chengdu, China
Two-generation superconducting coils carrying large current in alternating magnetic fields is very common in electrical applications such as HTS linear motor. So it is meaningful to study the characteristics of coated superconductors in the presence of travelling magnetic field. In this paper, by using the finite element simulation software COMSOL Multiphysics® software, the characteristics of ...
ABB AG, Ladenburg, Germany
Single coil actuators are representing one important component of ABB’s medium voltage reclosers. Their performance is strongly influenced by the considered material properties as well as by the electronic control units’ properties that will power the actuator. Therefore, this paper focuses on electromagnetic actuators modeling and simulation in COMSOL Multiphysics®.
T. Guerra, J. Tiago
Escola Superior de Tecnologia do Barreiro do Instituto Politécnico de Setúbal, Barreiro, Portugal
Instituto Superior Técnico da Universidade de Lisboa, Lisboa, Portugal
Numerical simulations applied to blood flow together with the imaging processing advances are a powerful tool in the prevention and treatment of some diseases. The inclusion of real data in the numerical blood flow simulations allows the achievement of more realistic and accurate results. In the literature, these techniques are known as Data Assimilation (DA). We solve a variational DA problem ...
R. Penjweini, T. C. Zhu,
 Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
Introduction: Type II photodynamic therapy (PDT) is an experimental modality for cancer treatment based on the combined action of a photosensitizing drug (photosensitizer), a special wavelength of light and singlet oxygen (1O2) generation; the cell killing is caused by the reaction of cellular acceptors with 1O2. A mathematical model has been previously developed to incorporate the macroscopic ...
S. Zhuang ,
 CAEaid, Inc., Austin, TX, USA
Mechanical product design is crucial in many engineering field and lots of industries. CAE simulation has been widely applied for predicting virtual product design for a few decades to reduce the cost and shorten the design life cycle. Because of complicated geometry, material/geometrical nonlinearity and complex conditions, it is painful to efficiently and accurately simulate and predict ...