How to export deformed structure from COMSOL?
I simulated a MEMS module based structure in COMSOL. I obtained the deformed structure after doing the simulation. I want to export the deformed structure so that it can be used for further analysis in...
View ArticleSpecifying a demagnetization curve of a permanent magnet
Hi all, I use the magnetic fields interface (AC/DC module) to simulate a magnetic system with permanent magnets and soft iron parts. Currently I use the "remanent flux density" constitutive relation (B...
View Articlehow to make a triangle in comsol 3.5a
Dear users, Does anyone know how to make a triangle in comsol 3.5a. Any help will be highly regarded. thanks. Cecil
View Articlehorizontal stress only shows in the top layer
hi i'm simulating a road using the elastic model. the road has 3 layers (asphalt, foundation, soil) with different moduli. when I apply the loads of the wheels, I can clearly see how the vertical...
View Articlenonlinear kinematic hardening
Hi is there some possibility to define a non-linear kinematic hardening model like Frederick-Armstrong without building all mechanical equations out of the mathematical interface?
View ArticleWhich interface choose for fluid flow with heat transfer
Good day! I would like to ask for an advice. I wish to solve the following problem: I have a plate of a solid material with low thermal conductivity. There is a pipe with cold water inside the plate....
View ArticleWindowed integration of a far field pattern in RF module
Hi folks, In RF module, after I obtain the far field patter (RCS) of a scatter, I need to calculate the integral of the RCS at certain angle over its neighborhood and then plot the integration as a...
View ArticleStore part of solution for next run
Hi: I have 2D and 3D models of the same experiment which are in the same file. I would like to do two things: 1) Store the solution of the 3D run and store seperately the data from a "cutplane". 2) Use...
View ArticleApplying torque in COMSOL
I have created the drill string (pipes and joints interconnected alternatively 9 times) geometry in the XZ plane and defined the cylindrical co-ordinate system. Boundary load 10000 N is applied as...
View ArticleRe-build Thermoacoustics Module
Hey there, I am using the physics module to rebuild the 3 differential equations of the thermoacoustic module (please see attached). In the physics module I am using the coefficient form PDE (3D). In...
View ArticleDoubt with extrusion coupling
Dear all, I have been reading the documentation on extrusion coupling and the packed bed reactor example in which extrusion coupling is used. I have a couple of questions: 1) How to select the...
View ArticleImporting an Excel point XYZ elevation file into COMSOL for modeling ice flow
Hello, I have an microsoft excel spreadsheet that has 475 point locations with known latitude, longitude surface elevation, and depth of ice for each point on a valley glacier. I also have 40 locations...
View Articleconvergence problem
Hi, I am a newcomer to comsol. Here is my problem. I always meet too large convergence when I run the comsol. If i change something to fix convergence, the reaction rate will be very low and the model...
View ArticleI need a help for my combustion simulation
Hi, It's not the first time that I expose my problem here. Is there any person who can help me to show me how to simulate a combustion reaction? I already done many tutorial, but till now i didn't...
View ArticleConjugate heat transfer Interface boundary condition
Hello All, I am new to COMSOL. I am trying to solve a 3-D conjugate heat transfer problem with volumetric heat generation in the solid domain. The problem is more like solving for a temperature profile...
View ArticleSpecifying location of an import CAD in the simulation
Hello Everyone, I've been searching for a while, but I have been unable to find a way to specify where in the design space you would like an import CAD to be located. Any help would be greatly...
View ArticleDifferentiation of electric potential
I have used Laplace equation module to compute electric potential for certain geometry. Now I would like to compute electric field lines, but I am not finding a way to do that. Please help regarding...
View ArticlePenetration and convergence in contact; viscoplasticity
Hi! My ultimate goal is to simulate metal extrusion, specifically interested in the streamlines of the metal flow as the billet deforms in the die. I'm applying a prescribed velocity at the top surface...
View ArticleTo find the temperature difference between two boundaries
I have built a model and found the temperature distribution over its surface. I want to plot over time the difference between the temperatures at two points over the surface. Please assist me in this...
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