Erosion 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...
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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 ArticleMMA algorithm
Why does the MMA algorithm take the integral form for solving the objective / constraint function of the topology optimization problem? What is the theoretical basis behind it?
View ArticleSpatiotemporal varying relative permittivity based non-reciprocal transmission
I am trying to reproduce the paper: Complete optical isolation through indirect interband photonic transitionsThe non-reciprocal transmission they have demonstrated in fdtd by their in house simulation...
View ArticleSimulating a toroidal B-field inside a magnetic focusing horn
Dear COMSOLers,I am trying to study the magnetic field map produced inside a magentic horn (geometry photos and simplefied model attached). The current is flowing in the r-z-plane rather than...
View ArticleModeling the transition from undeveloped flow to fully developed flow on a pipe
First of All, I appreciate you for taking the time to read my question.I need some help finding the right path to start modeling the transition from undeveloped flow to fully developed flow on a pipe...
View Articlefree licence for students ??
does comsol provide a free student licence or free trail to their software ? is there an online software of comsole multiphasics ?
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