COMSOL 4.3 with MATLAB error 2
I have the code that have for loop. Before the first loop is finished, we met several error messages ??? Error using ==> mphinterp at 317 mphinterp (292): Java exception occurred: Exception:...
View ArticleMeshing and Simulation of a Sphere partially covered with gold
Dears i am trying to perform an eigenfrequency simulation of the sphere i show in the file. The sphere is anchored by the circle in the bottom. And is covered, partially of a thin layers of Gold...
View ArticleAutomating plot exporting in Comsol on a Linux Red Hat system
Hello, first time posting Our group recently set up a Linux based server node for Comsol work. As it stands, we need to define our models on a workstation or personal PC, do the meshing, then copy the...
View ArticleQuestion about eddy current model
Dear friends, what if I want to know the temperature distribution in the plate in the eddy currents tutorial (www.comsol.com/showroom/gallery/970/)? The only result I get in this model is the resistive...
View ArticleDifference between "Electron outlet" and "Insulation" in the drift diffusion...
Hi all I have a fairly easy question about "drift-diffusion" physics in Plasma module. There are two types of settings for boundaries: "Electron outlet" and "Insulation". In the "Equation" for both of...
View ArticlePlotting the gap distance variable
I am trying to do something very simple, but it doesn't seem to be intuitive. I have a contact pair in the structural mechanics module and I want to plot the gap distance variable as a function of...
View ArticleModeling a Dielectric as a Real Capacitor
Hello everyone, I am having trouble modeling something. I would like to look at the conduction/conductance/resistivity of a insulating/conductive composite. It could be thought to be like a...
View Articlemesh quality not achieved
I am trying to simulate a problem where the particle is moving in the domain. So i have used moving mesh (ale) and assigned a value to prescribe mesh velocity for the particle's boundary. The particle...
View ArticlePressure boundary conditions
Hi All, I am working on a coupled problem involving a piezoelectric and fluid.....I need to apply the pressure from the piezoelectric after each iteration step and apply it as a pressure boundary...
View Articleerror:1038 File created by a later version of COMSOL
Hi I work with version 3.5a. I want to open a file but i encourage an error:1038 File created by a later version of COMSOL How can i open it, i think it is with version 3.5 Thanks in advance
View ArticlePCF with Matlab live link
Now i am designing on hexagonal structure PCF of six air-hole rings and successfully interface comsol 4.2 with matlab live link. The problem is that it takes a lots of time to simulate in Matlab when...
View ArticleSimulating a Magneto-caloric effect in Comsol
I have a problem in which i have a permanent magnet. In regards to theory of Magneto-caloric effect, if i pass the magnetic field to the gadolinium(rare earth, lanthanide group in periodic table),...
View Articlephononic crystal -- Acoustic Structure Interaction
hello, i'm computing the phononic crystal band structure using the Acoustic Structure Interaction modal, and the PC is 2D square lattice and the unit cell is a circle in a square area. the problem is...
View ArticleHeat Transfer in Soils
Hi, I am a comsol user and I want to have a 2d axisymmetric model. In my model, I have a soil sample that I put a steel bar in the soil. I want to heat the steel bar with a constant temperature 500(k)...
View ArticleMie scattering in 4.3
Hello, I have already seen some discussion about mid scattering of a gold nanosphere. But I the discussions I have consulted, no one has yet implemented a mie scattering program in Comsol 4.2 or 4.3...
View ArticleUsing the Optimization Module for geometry examination
Geometry optiization 4.3a Simple 1D sold state battery problem (in COMSOL) Done with assistance from COMSOL M = length of anode 320 nm L = length of solid electrolyte 1500 nm objective function =...
View ArticlePreparation of figures for papers/thesis?
If it has been written somewhere, can someone point me to where there is a guide to producing figures from 2D plots? I am using COMSOL 4.2a, and want to use some surface plots alongside legends of the...
View ArticleIntegration of MATLAB functions with more than one variable
Hi, I want to realize an integration in COMSOL 4.3a using self-written MATLAB functions. If I use a test function with one input and one output argument everything works as expected (plotting function,...
View ArticleInductively coupled plasma-High vacuum-Laminar flow-Free Molecular Flow-times...
hello! *** first question: I try to simulate the device using the PLASMA MODULE (inductively coupled plasma) and LAMINAR FLOW in a vacuum (10 millitorr). The problem is that when I run the solver, had...
View ArticleI want to simulate the deformation of two cylinders when they have different...
Hi, guys, I want to simulate the deformation of two cylinders when they have different potential. Is the model right? In the calucation, I find the model has difficulties to converge.
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