Comsol and simion
Hello,I recently did some electric potential simulation with Comsol and Simion. I found the results are different for these two software, does anybody know why?
View ArticleElectric field
Hello,I set a series electrodes, the geometry and electrovoltage seperation between close two are same, why it looks wired around big black area? Is there something wrong with my simulation?
View ArticleCalculating temperature difference in (thermally-thick) thin film
In my model, I have a Pt bar through which current runs. The Pt bar is placed on top of a thin film of thickness 2 nm, and width x depth = 5 mm x 5 mm. The thin film is placed on top of a block of...
View ArticleHow to only plot results for one domain in a multidomain study
Hello, I have an object that has three domains, and I am running the lamminar flow physics. However, comsol creates the velocity magnitud surface plot automatically. I want to only show the velocity...
View ArticleLaser cladding simulation
Hello every bodies,I am trying to simulate a laser cladding process with Comsol. However, I got stuck in the element activation in Comsol. I used the activation function in Solid mechanics model to...
View ArticleMeasuring volume of matrix material
Hello,I have programmed a unit area of matrix containing a random distribution of fibres (see attached image). I would now like to effectively measure the volume fraction of fibres within the cube,...
View ArticleFluorescent material in Wave Optics
Hi all,For my master thesis research I'm looking into the possibilities of incorporating a luminescent material into an anti-reflective coating. Creating an non-fluorescent AR coating has worked for me...
View ArticleTransfering deformed geometry from one study to another
Hi guys, hope you're doing well. I am working on Solid Mechanics Module in COMSOL 5.4. I am stuck at one step. I applied some forces to a sheet and the deformed sheet is recorded in Study1. Now, I want...
View ArticleLarge deformation query
Hi guys, hope you're doing well!I am working on a COMSOL Model which is a simple model consisting of only one sheet (1000*500*5um). The sheet is fixed from one of faces and some forces are acting on...
View ArticleUsing a variable from another physics interface as a boundary condition for a...
Hello, I am simulating an isfet. I am using "semiconductor" and "electrostatic" physics for my geomtry. What I am trying to do is to compute an electric potential for a surface that is adjacent to my...
View ArticleExternal material hysteresis model
The below post is related to an archived discussionThe comsol allows to use a external material model. There is a example for using external nonlinear BH curve but without hysteresis. Does anyone knows...
View ArticleAutomatic remeshing based on distortion
I’d like to use automatic remeshing with a stop condition based on distortion but I’m encountering an error in the attached model because the default distortion expression...
View ArticleThe problem about the pulse wave becoming a continuous triangular wave
Hello every bodies,I am trying to simulate the propagation of pulsed ultrasound in human tissue. When setting the pulse function, I found a problem: when the pulse repetition frequency is too large and...
View ArticleCoupling heat and mass transfer in the Indirect evaporative cooling
Dear Mr/Mrs, I am working in a project relating to water Indirect evaporative cooling. Before starting to build a pilot device, I want to check the performance by using Comsol. As I know, comsol can...
View ArticleComputations in void
Hi!I'm junior in COMSOL and try to compute electrical potential of electrodes between these electrodes on cross-plane in vacuum chamber. Vacuum in this chamber is very high. The question is how to...
View ArticleComsol heat pipe
hello everyone I am very new in comsol and started preparing two dimensional heat pipe (bore hole) , basically line source Model,would anyone here with kind heart to help me how to approach for itA big...
View ArticleAxis Error before computing the structure
Hi, I am Rahma. I've made a structure for microwave heating. But i found a problem, it can't be computed because of the axis which need to be defined. I don't know which axis that requested by my...
View Articleporous to solid phase chage
Is that possbile to model a phase change from porous powder to solid when melting and then still in solid state when cooling?
View ArticleFrequency domain analysis
Hello, I have a general question about performing frequency domain analysis in COMSOL. I have an excitation with frequency f1; however, I want to show the results (for example wave propagation) with...
View Articlecalculate average vibration velocity of a plate under Z axis direction force...
Problem definition: A rectangle plate 200*300*3 alumnium material. Constraints: four surfaces (except the two biggest surfaces) are constrained in X/Y directions, set limited displacement at X/Y=0;...
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