科技论文和展示

这里您可以找到在全球 COMSOL 年会上所有用户报告的演示文稿。这些演示文稿介绍 COMSOL 用户是如何使用 COMSOL Multiphysics 进行创新性研究和产品设计。研究主题涵盖了包括电气、机械、流体和化工等范围广泛的行业和应用领域。请使用“快速搜索”来查找与您的研究领域相关的演示文稿。

A 2D Axisymmetric Electrodeposition Model

R. Pryor
Pryor Knowledge Systems, Inc.
Bloomfield Hills, MI

Electroplating is a vital technology widely employed for many technological applications ranging from decorative or anti-corrosion coatings to high precision nanotechnology passive electromagnetic cloaking devices. This 2D Axisymmetric Electroplating Model demonstrates one of the modeling methodologies that can be used to calculate the transient generation of a coating thickness of a deposited ...

Constructing Laser-Induced In Vitro Cell Damage Model Based on Thermal Analysis using COMSOL

S. Boukhris[1], M. Denton[2], and Y. Feng[1]
[1]Computational Bioengineering and Control Lab, University of Texas at San Antonio, San Antonio, TX
[2]TASC, Inc. Biomedical Sciences and Technology Dept., Ft. Sam Houston, TX

The use of lasers in the military and everyday life is growing each year. The purpose of the current research is to take full advantage of this new spatially-resolved thermal data to construct a mathematical and numerical model for laser-induced damage using COMSOL Multiphysics. The microthermography data were extracted for vertical and horizontal lines through the laser-exposed area of cell ...

High Field Magnetic Diffusion into Nonlinear Ferrimagnetic Materials

J-W. Braxton Bragg[1], J. Dickens[1], A. Neuber[1], and K. Long[2]
[1]Center for Pulsed Power and Power Electronics, Texas Tech University, Lubbock, TX
[2]Dept. of Mathematics, Texas Tech University, Lubbock, TX

Ferrimagnetic based, coaxial nonlinear transmission lines (NLTLs) provide a means to generate sub-nanosecond risetime pulses (from nano-second input pulses) or megawatt level high power microwave oscillations, depending on the geometry, material, and external bias fields. This investigation uses the commercially available, finite element solver COMSOL to provide insight into pulse behavior. ...

Assessment of Spatial Variably Saturated Flow by Irrigation Moisture Sensors in 2-Dimensions using the COMSOL Multiphysics 4.1

A. Boluwade, and C. A. Madramootoo
Bioresources Engineering, McGill University
Ste. Anne De Bellevue, QC
Canada

This paper reports on the application of COMSOL Multiphysics’ Richard\'s Equation Interface in the assessment of irrigation moisture sensors for detecting the level of water saturation in a spatial variably saturated soil. The Richard\'s Equation (in COMSOL) provides the interface which automates the van Genuchten equation. A hypothetical soil column 4m by 4m was set up with seven irrigation ...

COMSOL Multiphysics Predictions of Pressurized CO2 Foil Thrust Bearing Characteristics

T. Munroe
Bechtel Marine Propulsion Corporation
Niskayuna, NY

This report discusses an analysis of gas foil thrust bearings used in the Integrated Systems Test (IST) turbomachinery. Gas foil thrust bearing failures occurred in IST turbomachinery during operational testing at Barber-Nichols Inc. This paper presents preliminary results of a study to assess, by means of multiphysics analyses, the performance characteristics of the foil thrust bearing over ...

Effect of Calcification Properties on Stress in Models of Atherosclerotic Plaque

C. Buffinton, P. Rogerson, and D. Ebenstein
Bucknell University
Lewisburg, PA

The effects of calcifications on arterial wall stress have been largely ignored, in part because the material properties of the calcified areas were taken to be the same as the fibrous plaque, and in part because they are often assumed to have a stabilizing influence. Recent measurements suggest that their stiffness should be more similar to bone. A computational model is indicated for this ...

Simulation of PTFE Billet Sintering using COMSOL

A. Roday, and P. Nicosia
Garlock Sealing Technologies
Palmyra, NY

Sintering is an important step in the manufacturing of polytetrafluoroethylene (PTFE) billets. The challenge in heating large billets stems from the inherent low thermal conductivity of PTFE. Existing literature suggests determining maximum heating rate experimentally using recommended guidelines. This paper uses COMSOL to aid in optimizing the temperature profile required for a particular ...

Coupled Magnetodynamic and Electric Circuit Models for Superconducting Fault Current Limiter

L. Graber[1], J. Kvitkovic[1], T. Chiocchio[1], M. Steurer[1], S. Pamidi[1], and A. Usoskin[2]
[1]Center for Advanced Power Systems, Florida State University, Tallahassee, FL
[2]Bruker Energy & Supercon Technologies Inc., Billerica, MA

Finite element models, which include the shielding characteristics of superconductors are often complex and would currently not allow us to study 3D models of devices of complex geometry such as fault current limiters. We propose instead a model based on variable electric conductivity, which is suitable to simulate magnetic field characteristics of inductive superconducting fault current ...

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 ...

Simulation of Quench Propagation in a Double-Helix Superconducting Magnet with COMSOL Multiphysics

P. Masson
Advanced Magnet Lab
Palm Bay, FL

The paper presents the numerical analysis of quench propagation in a DH magnet wound with a commercially available MgB2 wire in a fiber-glass composite matrix and operating at 20 K. The quench is induced by a small heater located on the first layer of the magnet close to the peak field area. The quench dynamics, peak temperature along with detection requirements are derived from the simulation ...

Quick Search

2681 - 2690 of 3226 First | < Previous | Next > | Last