2d- isometric induction heating
I am a senior i working on simulating the response that a aluminum structure has to an external coil. i have built the assembly entirely in comsol and can run the simulation. when i create a new...
View ArticleNew to Comsol: Missing Magnetic Modules Under "AC/DC"
Hello!I am new to Comsol and I am trying to simulate an electromagnet used in my research lab at school. I am trying to use the Magnetic Modules I see in videos, like "Magnetic Fields (mf)" but they...
View ArticleNumerical Wave Tank, Twophase_Flow, Phase Field，the definition about Wave
Dear all, I am simulating a numerical wave tank in comsol, by using the twophase_flow, phase field method. I have found some examples in comsol, I feel confused that how can I make the waveform in 3...
View ArticleCan you give me some advice about piezoelectric materials?
Recently, I have been doing research on two-dimensional phonon crystal plate waves.I have some difficulties about how to set the boundary conditions of short-circuit of piezoelectric material.Thank you...
View ArticleReducing simulation time with two different time steps
Hello together,I would like to simulate the temperature profile during laser drilling with an ultra short pulse laser. The problem is that the pulse duration is 800 fs, but the drilling takes 0.1 s. If...
View ArticleErosion rate
Can any one suggest me, How to find Erosion rate in Comsol model?Which module need to be use?Regards,Vipul Rokad
View ArticleAC electrothermal flow pumping - ACET body force ?!!
I am simulating AC electrothermal effect for fluid mixing/pumping in simple design of chamber with 2 electrodes over silicon substrate. I used Electric current module + heat transfer in solids &...
View ArticleWrench example question
HI all. My von Misses stress results when running the wrench simualtion are of the order of 10^-2 MPa. According to they "Introduction to Comsol" pdf and to the video...
View ArticlePOINT EVALUATION (3d model)
HelloI've done some velocity profiles in comsol 5.5 by using 3D cut line option. I want to know exact values of velocity along this cut line on several points. Let's say, some points following Cut...
View ArticleCan you give me some advice about Phonon crystal plate wave?
Recently, I am doing research on two-dimensional phononic crystal plate waves. I would like to know how to add only symmetric Lamb waves to the model to study the mode of S0 Lamb waves.
View ArticleHow to implement a charge-discharge cycling BC with constraints in...
Hi,I am trying to build a lithium ion battery model using Coefficient Form PDE equations in Mathematics module, instead of using the in-built Lithium Ion Battery module.For this, I want to implement a...
View ArticleTransport of Dilute Species (tds)
Hi there How can I modify the governing equation in the transport of dilute species to add an extra mass flux term induced by the temperature gradient?J=D∇c + DT c∇Twhere DT is the user-defined thermal...
View Articlefemtosecond laser ablation
Hello... I want to do femtosecond laser ablation based on TTM(two temperature model). Frist laser gives the energy to the electron and that electron heated up. Now, this electron gives its energy to...
View ArticleUsing previously computed solution as input for new simulation.
Hello,I am doing a stationnary study of thermal strain using the solid mechanics module. I want to simulate thermal strain in a system with different material that have been deposited at different...
View ArticleClik here to view.
Cluster Batch Job Error
Hi. I've recently gotten the cluster sweep running through a SLURM cluster Architecture from the COMSOL GUI. I can submit my jobs just fine, monitor, detach and attach jobs, and collect results at the...
View ArticleUse 2D-Axisimetric component (not only geometry) inside a 3D component
Hello, I am designing an array of speakers to analyze them within an enclosure with certain obstacles and to analyze the pressure field in the enclosure. The speakers are based on this example...
View ArticleSlider value.
I have defined a slider in an application (in the Application Builder). I want it to control the time paramater (t) for which some plots will be shown. I have defined a method with a few lines...
View ArticleFailed to find consistent initial values
I am trying to run a simulation of a DC magnetic coil. The simulation runs with no issues as a stationary problem and gives a sensible result. I would like to run the analysis as a transient problem*....
View Articlewhat does the error "para_sweep_2 is not monotone mean in comsol and how to...
what does the error "para_sweep_2 is not monotone mean in comsol and how to solve this ?
View ArticleFunctions vs Variables
Many calculation tasks can be handled either with a variable or a function. Are the calculations handled differently in the code? Are there advantages of one over the other, or are they just different...
View Article