Electromagnetic actuator
I have problem with coupling the magnetic that generated by 2D Coil with permanent magnate to actuate the cantilever beam. Also, I have faced problem to specify the boundary of moving mesh that is...
View ArticleInduction heating 2D with magnetic flux concentrator (MFC)
Hi all, I have some problem with an induction heating simulation which has a magnetic flux concentrator (a material with a really high relative permeability) in it. As a result, the metal plate heat up...
View Article"Nonsymmetric matrix found" error and meshing
Hello, 1 - I'm simulating a Newtonian incompressible fluid flow in a porous medium (medium formed by 1000 solid grains). For a mesh of 124816 elements, the computation runs normally and I get results....
View ArticleInduced current/voltage from one coil in another
Dear community, I just started to use COMSOL. Now, I'm trying to model two cylindrical coils with different radius but at the same position (also same length and thickness). I'd like to apply a...
View ArticleTroubles with reading COMSOL text data files and files with interpolation...
Hello everyone! I have some troubles with creating my own reader for COMSOL text data files and files with interpolation functions. I have read "The COMSOL File Formats" section of...
View ArticleCAD data for KEMAR
Hello. I have seen papers with scans of the KEMAR manikin, such as from Mads Jensen when he was at Widex. I am in need of CAD data (e.g. STEP file) for the KEMAR head. Does anyone have such data? Would...
View Articlecalculating average element size
Hi, I am trying to characteise the effect of mesh quality and element size on the solution of a model. I have generated a standard and several refined meshes using an external software (Simpleware) and...
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 Article2D hinge in compliant mechanism
Hi all, I am trying to simulate a compliant mechanism as seen in the attached picture but I am having difficulties simulating the rotating pin in 2D. As see in the picture the structure is composed of...
View ArticleNot able to properly use remesh feature in multiphysics stationary simulation
Hi, I have simulated a steel specimen that becomes deformed due to bending. For that, I use the solid mechanics interface in a stationary study. Parametrizing the magnitude of bending also works....
View ArticleElectrodeposition of chrome
Hello, We are trying to model a chrome plating process with a non-dissolving (inert) anode. We used the Tertiary, Nernst-Planck module with a moving mesh. We set up the electrodes as "External...
View ArticleError in Jacobian
Can I know what the error means??"Failed to find consistent initial values. Segregated group 1 Failed to evaluate operator Jacobian. Operator: nif, Geometry: 1, Boundary: 12 13 14 15 17 18 19 20 24 25...
View ArticleBoundary condition at interface of two different materials in structural...
Hi, I am trying to simulate a structural mechanics problem that utilizes 3D solid stress-strain module. I have a square plate of elastomeric material having a thikness in micro meteres and on top of...
View ArticleChanging License
I wish to change the license of my COMSOL software from my institute's "Floating License" to "Trisl Version". Can I know how to do??
View ArticleFunction as parameter.
Hello It is possible to use a function as a parameter in the geometry. For example, replace the radius of the circle function of time. Thank you.
View Articlestate space
Hi, when we use mphstate to export state-space model, can we know the physical meaning of each states? Any help is appreciated. Thanks
View ArticleTime to Reach Steady State in a Diffusion Problem
Hello, Is someone able to help me, please? I'm using COMSOL to model a diffusion problem. I have solved it using the stationary solver. I am able to see that at steady state the concentration on the...
View ArticleMulticomponent multiphase flow
I am currently simulating a model in which the two carrier phases involved are water and toluene and the diffusing components are acetone and methyl isopropyl ketone (MIPK). This problem is to be...
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 Article