Simple export/point graph question
Hi guys, I'm working on a simulation of an electrochemical cell (simple 1D geometry with one end grounded and the other set to a bias voltage), and I'd like to export the data pertaining to the...
View ArticleUsing 3D model data as input for 2D model
Hi Everyone! I have a 3D model with coupled flow and electro-chemistry equations. The equations are weakly coupled, so I know from previous experience that I can run the flow and electro-chemistry...
View ArticleDifferent results of Simulation from Solid Mechanics and shell
Hello, I have a problem when doing a simulation with a bend pipe meshed by shell element. The results of principal strains are one time larger than meshed by solid mechanics. But the results of...
View Articleelectrode - voltage response to remote current
Hello, I am trying to do a test on a probe with some electrodes in it. I am trying to have a current at a point 100 um away from the probe and record the voltage at the electrode. I have built the...
View Articleelectrode - voltage response to remote current
Hello, I am trying to do a test on a probe with some electrodes in it. I am trying to have a current at a point 100 um away from the probe and record the voltage at the electrode. I have built the...
View Articleelectrode - voltage response to remote current
Hello, I am trying to do a test on a probe with some electrodes in it. I am trying to have a current at a point 100 um away from the probe and record the voltage at the electrode. I have built the...
View ArticleFrequency Response Analysis
Good Evening, In my simulations I'd like to excite my object with a known force throughout a certain frequency range then have a FRF Graph of it with Frequency on the x axis and the Acceleration/Force...
View ArticleAdd a specific rectangular surface as data set for post-process inside 3D...
Hello all, Currently I am trying to add a rectangular surface as a data set inside my 3D geometry for the post-analysis. The four vertex of my rectangular surface has coordinate (x,y,z) provided as...
View Articleheat transfer and laminar flow
Hi I am trying to model the flow of liquid metal(Al-Si alloy) inside casting die and the eventual solidified product at the end of the die. I am not sure whether to use conjugate heat transfer here....
View ArticleLiquid Crystal - Director distribution
Hello, I would like to calculate the director distribution of liquid crystals. The formula fs=1/2(K11*(div n)^2 + K22*(n * rot n + q0)^2 +K33* |(n x rot n)|^2) describes the Oseen-Frank free energy...
View Articleelectrospray simulation
Hi, I'm trying to simulate an electrospray experiment using comsol 4.1 in order to see the formation of droplets leaving a needle to a plate. A high voltage is applied on the needle and the plate is...
View ArticleMissing Infinite Element Domain
I cannot find the Infinite element domain node, which I thought was under Definitions. I'm using the Heat Transfer in Solids in the base package. If it is not available there, where could I find it?
View ArticleCOMSOL Releases COMSOL Multiphysics version 4.3a
We at COMSOL are proud to introduce version 4.3a of COMSOL Multiphysics to the COMSOL community See: www.comsol.com/products/4.3a/ This introduces: * LiveLink™ for Excel® * LiveLink™ for Solid Edge® *...
View ArticleDielectrophoresis
Hi there. I tried to observe the particle movement effect through the "particle tracing for fluid module". However, the result of particle trajectories didn't show up any particle movement. Please...
View ArticleCutting a simple geometry in half
I'm trying to cut a relatively simple 3D geometry in half. My approach is to first partition the geometry using a work-plane and then delete the entities that I don't want. Unfortunately, some parts of...
View ArticleAccessing database
Hello, Is it possible to access the database of a study and modify the value of a dependent variable? I am running v4.3b with Matlab. In my Comsol model, I have two studies; general form PDE and...
View ArticleHow to cut a geometry
Hello, I have a 3D geometry and I need to cut half of it to create a symmetry plane. Can you please describe the steps. Thanks. Regards, Dimitris
View ArticleIdentifying Acoustic Shape of Sound Localization
New to this forum. I am a researcher but limited in acoustic knowledge. Hoping you guys can help. Is it possible to identify the shape of a sound source? We are trying to identify whether the sound...
View ArticleProblem with Mesh Swept
There is something I don't get right with the Mesh Swept option. I used the model "biased_resonator_3d_modes.mph" from the Model Library as a starting point. There they built a mesh on one face of the...
View Articlelong running time
Hey: I hope you all are well, I have a question, when I run my model it takes lots of time to run and finally the analyses wouldn't be completed. and also no errors would be appeared. Now, I am not...
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