Plane Stress in a Plate With a Hole
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...
View ArticleVarious Mode Heat Transfer
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. Further,...
View Article[AC/DC V3.5a] Maxwell Stress Tensor "pitfall" example
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...
View ArticleDeformation of free surface under pressure– 2D model with surface tension
This model is concerned with the simulation of incompressible Newtonian fluid flow problems with surface tension. The fluid is initially at rest in a square tank. A Gaussian pressure is applied on the...
View ArticleSquare drop oscillation under surface tension – 2D axi-symmetric model
This model is concerned with the simulation of incompressible Newtonian fluid flow problems with surface tension. An initially cubic drop of water is oscillating under surface tension forces. This...
View ArticleLocal Drug Delivery by Infusion through a Multi-hole Sprinkler – 3D Model for...
This is a fully scaled 3D model built to explore the feasibility of localized drug delivery by infusion through a central sprinkler with multiple, non-axial-symmetric holes into a rodent prototype...
View ArticleA MatLAB-based tool for handling Tessellated Free Shape Objects with a...
Description: This is a fully MatLAB-based tool, called ProMESH, allowing to handle tessellated models (in .STL ASCII file format). Open imported tessellated model may be thickened. Geometry shape may...
View Article[SM 3.5a] 3D Euler Beam Properties Calculations
3D Euler Beam based FEM models calculate quickly and are very usefull for design otimisation and conctual design phases. In COMSOL, as most FEM codes, 3D Euler Beams require the input of quite some...
View Article[SM v3.5a] Rotation constraints in structural module. With complements
There are different boundary constraints in COMSOL structural, but in 2D/3D structural (smpn, smsld ...) there are no angular variables predefined, hence no easy way, as in the Euler beam modules, to...
View ArticleNon parallel plate capacitor COMSOL 4.0
This example show the electrostatic potential and electric fields in capacitor which plates are tilted and separated with air gap. . Model by Michal Jedrzej Radziwon
View ArticleParallel plate capacitor COMSOL 4.0
This example show the electrostatic potential and electric fields in parallel plate capacitor with air gap. . Model by Michal Jedrzej Radziwon
View ArticleSPICE RCL-circuit with initial conditions
This model shows how to set up a SPICE model of a RCL-circuit in COMSOL4.0a with other initial conditions than default. The SPICE (Electric Circuit, "cir") in COMSOL does not allow you to specify...
View ArticleCoBoGUI - An open source graphical user interface for two dimensional solar...
CoBoGUI is a freely available collection of MATLAB scripts for two dimensional solar cell simulations with COMSOL Multiphysics and MATLAB. It proviedes a flexible graphical user interface and can be...
View ArticleLow Reynold's k-epsilon model for Comsol v3.5
This implemented Low-Re k-epsilon Comsol model is based on the Launder-Sharma damping functions as described in Wilcox's Turbulence modeling for CFD book. Model implementation was in 2D under steady...
View ArticleLoudspeaker Driver Electromagnetic v4.1
This model is the electromagnetic part of the Loudspeaker Driver model (http://www.comsol.com/showroom/gallery/1369/). The acoustic module is NOT required to open this model.
View Article2D transient pressure field from a boundary
This very simple 2D transient model uses the Acoustic Module to show how a pressure wave propagates in time. The scenario is a simple 2D rectangle with one boundary acting as the source of the pressure...
View ArticlePyramidal Horn Antenna
We provide a convenient 3D RF model of a generic pyramidal microwave horn, with a simple user-adjustable (parameterized) geometry. The model was prepared with Comsol Multiphysics v4.2a with the RF...
View ArticleZernike Polynomial extraction of deformed optical surface
You will find hereby a COMSOL Multiphysics v4.2a Solid + Optimisation model extracting the first dozen Zernike polynomials from a deformed circular surface, expressed in RMS values. In optics, the...
View Article1D resonant quantum tunneling
The model sets up boundary conditions for the Schrödinger equation in order to achive tunneling solutions. A resonant barrier potential is created with 1nm separation-width and 0.2nm oxide thickness...
View ArticleAnother Pandulum (3d truss element)
Pandulum model using 3d truss element. initial position is from (0,0,0) to (0,2,10). (0,2,10) end is pinned. (0,0,0) end has 10kg mass. gravity is applied in -z direction. analitical solution is...
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