Not 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"No frame is defined for 0D applications"
Hello again. I am trying to simulate an E-core transformer. When I click the study 1 and select the show default solver there is an error occurs "No frame is defined for 0D applications" . What is it...
View ArticleSurface impedance
Hello everyone, I want to plot the surface impedance of my simulation. Can I do it in COMSOL? How I do it? Thanks Gustavo
View ArticleError Jacobi with user-defined function
I defined a function in Global Definition to describe the graded-index. However, when I used the Solve-Modal Analysis, the COMSOL popped a window to warn error in Jacobi matrix. Plus, I suppose my...
View Articlebiosensor
hi sir,i am currently working on microcantilever beam based biosensor,and i want to know about the piezoelectric module and how to incorporate BC in microcantilever,
View ArticleHow to Improve Convergence in Natural Convection
I am wondering how I can improve convergence in my natural convection model. It is a simple model; an isothermal aluminum plate in water. The model starts out fine but as the run continues (transient...
View ArticleComsol doesn't keep initial values
Hi Now, I work on a Comsol model describing a spouted bed apparatus (spouted bed is a kind of fluidized bed, when the apparatus has a conical bottom). I use Comsol 4.3 with Euler-Euler model, laminar...
View ArticleProperties of model
Hey. How can I check the properties of the model object? For example, the current in the coil, or the radius of the circle, the properties of the materials. Thank you.
View ArticleProblems related to relative tolerance and relative error
Hello I want to reproduce a model in which there are two spheres in contact one upon the other along the z axis, and then i has applied two forces, one on the top (point or boundary region of the...
View ArticleLimiting simulations-Dynamic Pull-in Cantilever
Hi everyone, I have a quick question, Can I tell comsol to simulate till it reaches some theoretical value and the stop? I mean, what I'm trying to do is Simulate the dynamic behaviour of a cantilever...
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