Electromagnetic effects in artificial skin
Hello,we are a team of students in mechatronics and we are working on a project which is an artificial skin. It is composed of PDMS and copper wires in it. It actually looks like a matrix (4x4) so 16...
View ArticleEnd of file reached. Can't save file.
The below post is related to an archived discussion[start here] HI all, not sure of what the resolution to the referred thread was. I am also seeing a similar issue: End of file reached - File block...
View ArticleLine/Marker style cycling
The below post is related to an archived discussionHi All,Good to see that version 5.4 allows for colour cycling definition using customised text files. I would like to do the same with the Line...
View Articleperiodic contact
Hi,I am trying to simulate the heat flux betwen 2 bars (2D) in a periodic contact , I was wondering if the comsol can do this type of contact(i mean periodic contact(contact-no contact)) please if...
View ArticleCan't form union of 1564 geometrical objects
Hi, I have trouble forming a union of 1564 connected geometrical objects that consist of cylinders and spheres made natively in COMSOL. Everytime I try to form a union, I get the error message:...
View ArticleConservation of Mass Broken
History: We have a laminar fluid model with 1 inlet and 4 outlets which we are trying optimize flow equality to. Our boundary conditions contain an outlet volumetric flow rate of 100 [cc/min], an inlet...
View Articlechemical kinetics resolution with ODE
Ho all I can describe a set of chemical reaction kineticswith differential equations like dCa/dt= Ka dCb/dt=Kb dCc/dt=Kc Later I will add a convection part. Is it possible to be done with the only ODE...
View ArticleParticle size and shape in particle tracing module
Hi. I faced a problem in a simulation with particle tracing module. Is there any way to change the shape and geometry of the particles in the particle tracing modules? For example turn the sphere shape...
View ArticleMatlab function with two output parameters under comsol
Hi, How can I use a MATLAB function with two output parameters in comsol. Matlab function : [y1, y2]=test(x) I can not get the values of y1 and y2 and distinguish the two variables under comsol to run...
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Continuous Metal Forming in a stationary Solid Simulation (Wire Drawing)
Hello,Is it possible to have a stationary solid simulation of metal forming in COMSOL? Generally speaking, it works but can you do it in COMSOL? For the sake of simplicity, I want to discuss a very...
View ArticleJoule heating with different materials
Hello,I am very new to COMSOL and I was wondering if you could help me a bit modelling the following problem. I am trying to make a 2D model with four different materials: two conductors, one...
View ArticleDynamic Optimization
Hello,I have a problem with a dynamic optimization and I have no idea how to solve it, so I am asking for a help. The problem is this one:I have a Lithium-ion battery elettrochemical model built on...
View ArticleMeshing warnings while meshing the design in heat transfer module
Mesh warning (ftet1): Edge is much shorter than the specified minimum element size. Mesh warning (ftet1): Domain has a region that is much thinner than the specified minimum element size. Mesh warning...
View ArticleUndefined variable in while using comosol with matlab-ERROR
I am getting the following error when I run Comsol with MATLAB. I am unable to correct the error. Can someone give any insight to correct the error. I can see that the variable is found to be undefined...
View Articlecomplex eigenfrequency
Hello, i'm trying to solve a problem about solid-acoustic interaction, but i'm not able to solve it, because without damping i find complex eigenfrequency. The problems concerns the eigenfrequency...
View Articlepiezoelectric energy harvester
i am trying to simulate simple PZT-5A disc as a sensor but i am getting some large values for deflection and voltages
View Articleconcentration gradients of oxygen diffusing in a microfluidic device
Hi! I am using the transport of diluted species to model the diffusion of oxygen in steady state. The oxygen diffuses as followed: Air--> PDMS-->water-->cells. The cells are consuming oxygen...
View ArticleHow can I simulate lamb wave in COMSOL??
i'm trying to solve the paper of pablo Gomez about Lamb Waves and Dispersion Curves in Plates. I made the first part of this work, but i didn't know how can i do the rest. Especially how could i make a...
View ArticleRotating boundary in fluid flow problem
Hi,I am quite new to Comsol and am trying to model the stationary fluid flow around a rotating circle within a rectangle. I'm a bit unsure of how to speicfiy the rotating boundary condition upon the...
View ArticleBasic questions about ewfd in wave optics.
I noticed several examples about waveguides, such as *step_index_fiber_bend *, do not have incentive port. All the boundary is PEC. How come? Where does the electric field or incident wave come from?...
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