optimization Global objectives
Shape optimization in Case library is to find the minimum quality.The Global objectives is set to quality.Is the global objectives the default solution minimum?What should I do if my global objectives...
View Articleoptimization goal
My physics problem is transient.F is a force that varies over time. I want to choose the maximum value of F as my optimization goal. My optimization goal is to minimize the maximum value of F.What...
View ArticleFSI
i am doing the fluid structure interaction using the Comsol modal library named vibrating beam in the fluid flow. and I want to scale down the model. the default beam dimensions are in meters. If I am...
View ArticleFSI, Solid particle transport in fluid flow - Contact issues
Hi everyone,I am working on modeling the transport of a solid, non-spherical particle through a fluidic microchannel using the fluid-structure interaction physics in COMSOL 5.3a. This study needs to be...
View ArticleSemiconductor Simulation Convergance issue
Hello,I am currently trying to simulate a particle sensor chip that uses a high N and P doping concentrations in a non symmetric confiugration within the silicon. Also, I am reverse biasing the voltage...
View ArticleHow can I change the PH in ISFET in COMSOL tutorial?
I want to change the amount of PH in this example https://www.comsol.com/model/simulation-of-an-ion-sensitive-field-effect-transistor-isfet-45341could you please help me ?
View ArticleNeed basic operation help
I'm working on a class project with comsol and we're running into snags because we're still learning the basic functions of comsol and unfortunately our local resources don't have the ability to...
View ArticleTopology optimization
Hi, I am trying to understand how comsol solves the topology equations using navier stokes equations.Can anyone lease help me with these equations.
View Articleccp discharges
I work on the radiofrequency dichareges CCP. when I compile, the software arrives at a certain point when it stops and does not advance.thank you for your help.
View ArticlePlot data along line
Hi,I am new to COMSOL but learning. I think that there must be a simple solution to this, but I haven't been able to find it yet.I am trying to find values from my simulation along a like that I have...
View Articlethe magnetic flux density variation
The below post is related to an archived discussion[ HiI want to plot the magnetic flux density variation applied on a micro channel as a function of the distance along the axis of the magnet. Please...
View ArticleDoes Frequency Domain Modal output the solution?
Hi, when I run the frequency domain modal example for cascaded cavities, then I can see an S-plot and a smith chart. I can also see the eigenfields that were computed. But when I try to see the final...
View ArticleLiveLink for Matlab
Is there a way to call/open LiveLink for Matlab using regular Matlab? Or is there a way to run comsol model using just regular Matlab? I want to put my model in a function file and I need it to run...
View ArticleMass Transfer Models in Bubbly flow
Hi; In COMSOL 5.3a there are two models defined for bubbly flow mass transfer. (Nonequilibirium model and Two-film theory (Henry)). But in the software I just see Nonequilibirium model and...
View ArticleCVD COMSOL
Dears,Im working on one of an interesting subjects related to the garpehene growth using CVD . I would like to ask if any one having any idea about the graphene growth using COMSOL so you can share it...
View Articlesolution is here
The below post is related to an archived discussion[start here]delete C:\Users\Admin.comsol dot comsol folder delete will work
View ArticleEquation of simulation piezo module
pllllzzzz help , How can i found all the equations of simulation of a module piezo ,, urgent and thanks
View ArticleConvergence issues caused by stiffness degradation
Dear all,I am runing a coupled HM model for a porous media which employed the definition of damage. The Young's modulus decreases with the damage variable. When the damage is not activated, the model...
View ArticleSimulating Airflow from a Fan
Hello,I am trying to simulate a computer fan on top of a heat sink. I am currently using Nonisothermal Flow with the Laminar Flow modules. Pretty much following this as a guide:...
View ArticleControl the size of the output mesh after Automatic Remeshing occurs
Hello all!I am having troubles with a "Laminar Two-Phase Flow, Moving Mesh" model: the mesh elements are becoming very distorted and eventually the simulation crashes. Therefore, I have added the...
View Article