Error at the end
hello... I am using aluminium alloy 6061 and having an error which asks for values of complaince matrix, coupling matrix and relative permitivity as shown in pic . can any one help please..!!
View ArticleMeasuring Stress at any surface in the structure.
Hi, I was performing an unaxial tensile loading on a cylindrical element of copper with one face fixed and the other moved by a prescribed displacement. After computing the study (using auxiliary...
View ArticleMost common heat transfer problem
Hi,I am trying to simulate the temperature distribution in a regular plug flow reactor. For that, I defined a 2D-axisymmetric dimention where you have a simple geometry for half of a tube where the...
View Articlefixed interval size in 1D meshing
Hi, I wonder if it is possible to use a fixed size for subintervals when doing 1D meshing. So if the given mesh size is 0.1m, then a line of length 1m would always be divided into 10 subintervals, each...
View ArticlePiezoelectric energy harvester
Hi I am doing a unimorph piezoelectric energy harvester with a titanium proof mass. The cantilever is rectangular in shape and I have used PVDF as the piezoelectric material with a stainless steel...
View ArticleHow to activate 'geometric nonlinearity' in a transient study in COMSOL...
Hello everyone,I'm trying to run a simulation using the livelink with MATLAB, but I'm having a problem. The thing is, I don't know how to write a code that activates the 'Include geometric...
View ArticleSetting heat inflow for internal boundary
I have a geometry where a fluid flowing in an interior domain cools the larger (parent, porous medium) domain. My question is how to set one of the boundaries of interior domain to have heat inflow and...
View ArticleAdhesion between two layers
Hi,I am interested in studying the adhesion between two layers. There is also a Link for it: https://www.comsol.com/blogs/how-to-model-adhesion-and-decohesion-in-comsol-multiphysics/But I cannot find...
View ArticleHow to model a beam of light in COMSOL software?
I am using scattering boundary condition to make a EM source and the kdir I have given along X direction (i.e. -ewfd.nx). It is working when the geometry size is few micrometer. But when I am making...
View ArticleCretaing a 3D tree using livelink feature- Comsol with MATLAB
Hai, I am working with a case where I have a generate a 3D tree in iteration of MATLAB loop. I created a 3d geometry and based on the some electrical parameters in the geometry, the next location of...
View ArticlePowder compression in a die with two punch
Hello evrybody, I very need help to modelize the compaction of powder (pharmaceutical) on comsol. I try to do it, but i got always the error message. Somebody can send me a tutorial? My principal...
View ArticleFluid module
I want to look at how the height of the water in the cup changes as the water in the cup moves horizontally what should I do Please give directions
View ArticleEnergy from planetary spin (Earth)
I want simulation help for my experiment to proceed with the design.
View ArticleLinear function with Matlab
Hi,How can I define a linear function by using livelink for Matlab? My function is very simple V=400t for t<=0.1 sec for t>0.1 sec , V= 4000.1-Hassan
View ArticleWireless power transfer simulation help
Pls help me to design wireless coil with ferrite base and run the simulation.Pls give me any tutorial or sample file
View ArticleClik here to view.
Infinite current sheet modeling in comsol
I would like to model an infinite current sheet on xy-plane on Comsol. I want to see the radiated fields in z directionThe current on the sheet will have exponential dependence on y-direction, i.e. Any...
View ArticleNew Method in version 5.3: "Angular Spectrum of Plane Waves" Diffraction...
Hi all,I am currently trying to generate a diffraction limited gaussian beam (full width half max of around 200nm)This is impossible under the paraxial approximation that was used to define Gaussian...
View ArticleSurface integral over 2D slice of ellipsoid
I am trying to take the surface integral on a 2D ellipsoidal slice. These 3D ellipsoids are contained within a cylinder. At first I tried to do a parameterized surface, however when I enter the...
View ArticlePhononic crystal simulation
Hi, I am trying to simulate 2D phononic crystal. But unlike most of the existing problems, I am dealing with cylindrical air inclusion in steel matrix. I am lost about some issues: 1. Should I use...
View ArticleSurface Acoustic Wave Gas Sensor by using BaTio3
How to find the Elasticity matrix,Coupling matrix,Coupling matrix of BaTio3
View Article