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。

Thermal Exchange Modelling on Hydrogen Plasma Reactor Walls

A. Michau, F. Silva, K. Hassouni, and A. Gicquel
Laboratoire d’Ingénierie des Matériaux et des Hautes Pressions, Villetaneuse

A reduced equivalent plasma model is proposed for thermal dissociation of molecular hydrogen, which allows a detailed description of atomic hydrogen recombination. This model, implemented with COMSOL Multiphysics, also accounts for surface temperature and thermal exchange on cavity walls. A self-consistent model previously developed in our laboratory has enabled us to determine that, at ...

High Frequency Magnetohydrodynamic Calculations in COMSOL

N. Kleinknecht, and S. A. Halvorsen
Teknova AS
Kristiansand, Norway

In many metallurgical processes metals are (heated and) stirred by an oscillating external magnetic field. The magnetic field induces electric currents in the metal and the currents interact with the magnetic field to create a force, the Lorentz force. For high frequencies induction only takes place in an electromagnetic boundary layer due to the skin effect and the force is confined within this ...

Simulation Of Heat Generation From Vibration In COMSOL Multiphysics

G. Raghuraman, and M. Arunachalam
HCL Technologies Ltd, Chennai, Tamil Nadu, India

Vibrations are an essential part of our day to day engineering environment, which happen in automobiles, avionics, machines, electric motors, structures, electronic equipments, etc. When a system is vibrating under higher frequencies leads to higher displacement, noise and heat generation. Thus it is essential to study these effects of vibrations to improve the stability of parts in machines. In ...

Reliability Testing for the Next Generation of Microelectronic Devices

J. Plawsky, W. Gill, M. Riley, J. Borja, and B. Williams
Rensselaer Polytechnic Institute, Troy, NY, USA

Understanding and predicting the reliability of new generations of high and low-k dielectrics is increasingly important for gate oxides and interlayer dielectrics as both films have become thinner and scaling of device operating voltages has not kept pace with the decrease in the size of the dielectrics. We have developed a series of COMSOL-based mass transfer-based models that have proven to ...

Mobility of Catalytic Self-Propelled Nanorods Modeling with COMSOL Multiphysics®

F. Lugli[1] and F. Zerbetto[1]
[1]Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy

A small particle or a nano-sized object placed in a liquid is subject to random collisions with solvent molecules. The resulting erratic movement of the object is known as Brownian motion, which, in nature, cannot be used to any practical advantage both in natural systems (such as biomolecular motors) or by artificial devices. If energy is supplied by external source or by chemical reactions, ...

Microfluidic Design of Neuron-MOSFET based on ISFET

A. Jain[1], and A. Garg[2]
[1]BITS Pilani, Goa, India
[2]Bhartiya Vidyapeeth College, New Delhi, India

In this paper we suggest a device which combines the operation of a neuron-MOS and an ISFET. An ISFET is an ion-sensitive field effect transistor used to measure ion concentrations in a solution; when the ion concentration changes, the current through the transistor changes accordingly. A voltage between substrate and the oxide surfaces arises due to an ions sheath. It contains a conventional ...

Three Dimensional Numerical Study of the Interaction of Turbulent Liquid Metal Flow with an External Magnetic Field

G. Pulugundla[1], M. Zec[2], and A. Alferenok[3]
[1]Institute of Thermodynamics and Fluid Mechanics, Ilmenau University of Technology, Ilmenau, Germany
[2]Department of Advanced Electromagnetics, Ilmenau University of Technology, Ilmenau, Germany
[3]Electrothermal Energy Conversion Group, Ilmenau University of Technology, Ilmenau, Germany

Lorentz Force Velocimetry (LFV) is a non-contact measurement technique used to determine flow rates in electrically conducting fluids by exposing the flow to an external magnetic field and measuring the Lorentz force acting on the magnet system. Typically, for LFV applications real and complex permanent magnet systems with inhomogeneous magnetic fields interact with the fluid. In this paper, ...

Design and Development of Microsystems within a Corporate Research Environment by Utilizing Comsol Multiphysics

A. Frey
Siemens AG
Corporate Research & Technologies
Munich, Germany

Alexander Frey received his M.A. degree from the University of Texas, Austin, in 1994, the Dipl. Phys. degree from the University of Wuerzburg, Germany in 1997 and the PhD from the Saarland University, Germany in 2010. In 1997 he joined Research Laboratories of Siemens working on the design of DRAM sensing circuits. In 1999 he joined Corporate Research, Infineon, Munich, Germany. He was engaged ...

Expanding Your Materials Horizons

R. Pryor[1]
[1]Pryor Knowledge Systems, Inc. (COMSOL Certified Consultant), Bloomfield Hills, Michigan, USA

Materials and their related properties are intrinsically fundamental to the creation, development and solution of viable exploratory models when using numerical analysis software. In many cases, simply determining the location, availability and relative accuracy of the necessary material parameters for the physical behavior of even commonly employed design materials can be very difficult and time ...

Modeling Materials through a Phase Transition: Using COMSOL Multiphysics and Applying Physics First Principles Techniques

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

This paper presents a new phase transition model that is easily created and runs rapidly. It is designed so that the modeler can determine immediately the relative accuracy of the end result by use of the first principles of physics.Phase transitions are readily observable in many commonly utilized engineering materials. In fact, most modern devices and/or tools employ a phase transition in their ...

Quick Search