Graphene layer - transition boundary condition
I am trying to analyze a waveguide with a graphene layer, using Perpendicular Waves - Hybrid Modes. In this analysis, the graphene layer is considered as an infinitely thin conducting layer. Thus I...
View ArticleApparent inconsistency in induction heating solution methods
Hi everyone, I'm new to COMSOL 4.3, and I'm trying to properly use the induction heating module. While modeling the problem of a current loop heating several iron inductors embedded in water in 3D,...
View Articlephase change material
Hi, I am working on phase change material. During the simulating the Global Definitions, I can not understand that how step 1(function H) and step 2(function T_right) are working. and how they will...
View ArticleBioHeat transfer in Comsol. I am looking for a programmer for project
Solved in Comsol using the mesh geometry (3D) some physical three-dimensional problem. At the exit to the graphical construction solutions: line temperature isotherms in the (O-graphs) can be...
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 ArticleOne way multiphysics coupling within a transient simulation
Hello Fellow Users, I am solving two physics (fluid flow & species transport) in a transient simulation. The fluid flow is not affected by the concentration distribution. As of now, i have...
View ArticleRib waveguide
Hi I want to simulate this rib waveguide,but when i want to solve the problem the wave scattered every where of the waveguide that it is wrong.It should amplify the center of the waveguide. Who can...
View Articlestreamline problem
Hey, i am having some problems creating the steamlines for my Helmholtz coil. I followed the steps for the one of the model on comsol website for Helmholtz coil except other than revolve to create the...
View Articleabout 'Warning : Re-ordering of null vectors failed"
Dear all, I'm trying to simulate the dynamic behaviors of the linear control solenoid valve. The spool motion is determined by the force balances, which are calculated from each field, and a...
View Articleshow the field lines around a magnet
Hi. How can show the field lines around a magnet? Thank.
View ArticleMaterial selection
hi, Does comsol allow us to enter material properties manually such as young's modulus and poisson's ratio??...because i assigned polyurethane material to a domain of my model but it showing red mark...
View ArticleAbout conductive electrodes of piezoceramics layers
Hello everyone, I am working on a piezoelectric energy harvester(substructure and a piezoceramic layer). I am applying a point force on the substructure and measuring the voltage from the surface of...
View ArticleProblems with sweep mesh
Hi, I have been trying to sweep mesh a domain (3-D). It will be like a small straight tube of rectangular cross section and having turns at right angles (like a serpentine). I tried to mesh the source...
View ArticleImported SolidWorks part doesn't behave correctly
I'm relatively new to COMSOL but I haven't had much luck finding a solution. I had an assembly in SolidWorks made of 3 parts. I created a new SolidWorks part file which had the 3 parts mated together...
View ArticleConsistent error while computing the results for the model built
Sir.. I am working on a building model with pipes embedded in the ceiling for Concrete Core Cooling. I am getting a continuous error even after many corrections. The error says Failed to find...
View Articleerror
Sir, I'm using the physics piezodevices and electric circuit. I have a capacitor connected with the piezoelectric cantilever.The voltage output from pzd is given as a voltage source to the cir circuit....
View Articlesaw sensor for pressure measurement
hello, i am designing a saw sensor for pressure measurement.can somebody suggest me which formula i need to use in comsol in order to measure pressure. it should be related to change in frequency of...
View ArticleTime dependant heat flux at the boundary
Hello, I am trying to model 3D tissue. I wish to apply a time-dependent heat flux for one boundary. I have introduced an interpolation function under global definition. Basically, the function is a sin...
View ArticleNanoparticle heating with Surface Plasmon Resonance (SPR)
Hi Fellas, I am trying to model heating of metallic nanoparticles when exposed to Laser/Solar light with Heat Transfer module. I am new to comsol and I do not now how to model the incident light and...
View ArticleHow to implement a biphasic asymmetric waveform?
Hello everyone. I'm trying to figure out how to implement a biphasic asymmetric waveform in Comsol 4.3a. I need to be able to use the following electrical simulator settings in order to stimulate an...
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