Echanges de Modèles

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Displaying entries 31-40 out of 45.

[AC/DC V3.5a] Maxwell Stress Tensor "pitfall" example

Ivar KJELBERG, CSEM sa
Last updated: October 8, 2009

8 reviews

The Maxwell Stress Tensor is handy to use to calculate forces on magnets, but the method is very very sensitive to meshing symmetry. This example show the effect of surrounding a square magnet by a...

Various Mode Heat Transfer

AJ Baker, University of Tennessee, Knoxville
Last updated: July 7, 2009

10 reviews

Consider an array of heated tubes submerged in a vessel with fluid flowing past them. Neglecting end effects, the flowfield can be assumed 2-D in planes with normals parallel to the tube axes....

Plane Stress in a Plate With a Hole

AJ Baker, University of Tennessee, Knoxville
Last updated: July 7, 2009

7 reviews

The plane stress analysis of a square plate with a hole at the center subjected to tension is performed using COMSOL Multiphysics. Objectives of this simulation: 1. Evaluate the use of COMSOL...

Vibration of an L-Shaped Membrane

AJ Baker, University of Tennessee, Knoxville
Last updated: July 7, 2009

3 reviews

FEA normal mode vibration analysis of the L-shaped membrane for edge displacement BCs fixed at zero displacement. Objectives of this simulation: 1. Set-up a GWSh eigenmode analysis of...

Flow in a Step-Wall Diffuser

AJ Baker, University of Tennessee, Knoxville
Last updated: July 7, 2009

2 reviews

This example comes from the textbook "The Computational Engineering Sciences" by A.J. Baker. Objectives of this problem: 1. Set-up COMSOL for GWSh solutions for the benchmark Navier-Stokes...

Mass Transfer in Low Re Crossflow

AJ Baker, University of Tennessee, Knoxville
Last updated: July 7, 2009

4 reviews

COMSOL Multiphysics fluidized-bed problem of mass transfer in creeping flow over a cylindrical catalyst pellet. Objectives of this simulation: 1. Set-up the COMSOL Multiphysics fluidized-bed...

Space-time Formulation for Finite-Element Modeling of Superconductors

F. Grilli[1], F. Sirois[1], M. Laforest[1], and S. Ashworth[2][1]Ecole Polytechnique de Montréal, Montréal, QC, Canada [2]Los Alamos National Laboratory, Los Alamos, NM, USA
Last updated: May 5, 2009

7 reviews

In this paper we present a new model for computing the current density and field distributions in superconductors by means of a periodic space-time formulation for finite elements (FE). By...

Application of Solution Mapping to Reduce Computational Time in Actively Cooled Power Electronics

Kirk Lowe, Oak Ridge National Laboratory, and Rao V. Arimilli, University of Tennessee
Last updated: May 1, 2009

4 reviews

In some power electronic applications the available coolant temperature is close to maximum and controlling operating temperature becomes more challenging, for which new thermal management schemes...

Exploratory FEM-Based Multiphysics Oxygen Transport and Cell Viability Models for Isolated Pancreatic Islets

Peter Buchwald, Diabetes Research Institute and the Department of Molecular and Cellular Pharmacology, University of Miami
Last updated: April 30, 2009

7 reviews

Cellular-level oxygen consumption and cell viability models incorporating physiologically realistic assumptions and fully scaled 2D/3D geometries have been implemented in COMSOL Multiphysics for...

A Finite Element Analysis on the Modeling of Heat Release Rate, as Assessed by a Cone Calorimeter, of Char Forming Polycarbonate

D. Statler, Mid-Atlantic Technology, Research and Innovation Center, and R. Gupta, West Virginia University
Last updated: April 30, 2009

Not rated

During the pyrolysis and combustion of polymers, heat is released and is typically measured with a cone calorimeter to better assess the polymer’s flammability. Modeling heat release rate, as...