How to calculate the rotational speed of pm-motor
Dear allI am Joey.I am simulating a permanent magnetic motor with rmm physics. I need the torque, the rotational speed of rotor, should I define a parameters before calculating? Also, if you know more...
View Articlemagnetic field due to thin solenoid
Hi. I'm completely novice in comsol, and I'm trying to simulate magnetic field due to solenoid.I was wondering how can we simulate "n turn per unit length [m]" in comsol.Here, I want to have a solenoid...
View ArticleFrequency response analysis of a damped piezoelectric resonator
I've been having a problem doing frequency response analysis for a quartz tuning fork. I was able to obtain a decent frequency response without any damping and it kinda forces the response to be a very...
View ArticleHow to evalute stress on gauss point with MATLAB?
The below post is related to an archived discussion[start here] Difference B/W Von Mises Stress And Von Mises Stress Gauss Point Evaluation.Does any one know what is the difference between simple von...
View ArticleThe model - An immersed cantilever beam
I am interested in this model's details (designing and simulation), so if any could help me with any attachmet files for the same.
View ArticleSimulation of MOSFET model.
I want to simulate Mosfet using 2D plot . Can anyone suggest some tutorial or help me understanding the MOSFET simulation
View ArticleChanging phase field model in comsol
Hello everybody,I want to change the phase field equation in the comsol and I don’t know how I can do it.In the attachment, you can find all information about my problem.Thank you for your help in...
View ArticleDrawing a triangular hole in a cuboid
How can I draw a triangular hole in a rectangular channel? I am currently creating a 2D workplane and after drawing the required geometry in 2D, I am using the difference option. But the triangular...
View ArticleCATIA Import
Hi,I am trying to import a CATIA model into COMSOL 51, however I keep getting this error:Error : Translation aborted due to out of memory allocation problemHowever, my model imports fine on COMSOL 54....
View ArticleSystem requirements for COMSOL 54
HI,does anyone know the system requirements for COMSOl 54?I have a new computer and comsol 54 doesn't open....It gives me the following error:2019-07-19T08:32:01.292+02:00 Could not load file or...
View ArticleUnderground
hello, i have a question regard the paper that im working on , the question is i have to draw a tank wich is baried underground and do some simulation ? how could i form this ?
View ArticleContact and Deformation Problems about the Hyperelastic Seal
Hi,everyoneAttached is a Word file about the details of my model as well as its simulating problem.Your help and suggestions are highly appreciated!Best wishes,Lyon Hum
View ArticleParticle Tracing in a Microfluidic Flow
Hi,I'm trying to model Dean Flow in a spiral microchannel (100μm-50μm) for particle seperation.I would like to learn some tips for a microchannel in terms of boundary conditions, mesh convergence,...
View ArticleError "No such file or directory" when trying to solve a model via "comsol...
Hi Comsol Community,this is my first post on this forum, any feedback on how to better explain my request is very welcome :).I am running Comsol Multiphysics 5.4 on a remote machine via an SSH client;...
View ArticleReacting Flow in Porous Media Solution Error
I am trying to simulate the various aspects in 4 different studies: 1. Bulk flow through porous media (Brinkman Eq. - Stationary) 2. Particle Tracing (fpt - Using Study 1) 3. Constant concentration...
View ArticleIs that possible to group geometries just like group Definitions or parameters?
As I'm working to model a bridge system with all possible details. I got so many geometries (solids, edge, shell, etc) and it's a messy to organize or follow. Is there a way to categorize the...
View ArticlePARDISO vs MUMPS issue
I can solve a system of time-dependent, General Form PDEs using MUMPS as a direct solver on an interval [0,T] where T>0 is given. The adaptive timestep decreases in the course of the solving process...
View Article-recovery bash: mpiexec.exe: command not found
Hello,I am new to the remote cluster computing. After setting up all the connections, I am trying to submit and run my first job on the school's supercomputer. But I got the error said below. Could you...
View ArticleReactive pellet Bed
Hi,I need to use the concentration inside the pellet to define a new function in variable list (out of the reactive pellet bed feature). The problem is that COMSOL knows the variable "tds.rpb1.cpe_X"...
View ArticleExporting the Image for PCB construction
I made and simulated an RF microstrip model. Now I need to get a printout to construct it. But I couldn't find a good solution to print it in real dimensions on a paper.For this kind of problems in...
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