Thermal expansion in thin films
Hello,I am trying to study the associated stresses due to thermal expansion in a layered film structure. I have set a temperature boundary of 1000degC as a bottom heating condition and used rigid...
View ArticleThe Silver-Back Reflector Results Defy Common Sense
According to the general understanding, if the 0.5 micron Ag is covered with a 5 micron thick aluminum oxide film, the film should be like a mirror, reflecting at least 90% of the sunlight (I...
View Articleexport single streamline data with the corresponding field in it
Hi all, I am looking for a way to import the electric field along a single chosen streamline (and preferably to get both on the the same file). I can generate a single streamline on its own and the...
View ArticleContact Pairs
Hello All,I am attempting to use a contact pair between two stacked blocks. I want to allow a vertical force to transmit from one block to another but not a horizontal force, thus I am looking at...
View ArticleFluid Velocity due to Structural Movement of Walls
Hi Everyone, I would like to perfom a one way FSI to find the velocity of fluid inside a 2D domain (say rectangular slot).I am using a FSI, fixed geometry interface. I want to apply a sinusoidal...
View ArticleEmission from a point dipole source
I want to simulate a dielectric dimer having a small gap. The source is a point electric dipole that will emit EM radiation. The source will be placed in the middle of the gap. This will be a 3D...
View ArticleHow does COMSOL deal with the partial derivative of the complex variable to...
When we need some user-defined variables in the physical model, such as principal stress and principal strain, they are the eigenvalues of the stress tensor and strain tensor, respectively. When...
View Article0.2 micron silver was coated with a 3 micron thick aluminum oxide film and...
According to the general understanding, this structure is equivalent to a mirror, at 0.3 to 4 microns should have a high reflectivity, this result is clearly wrong, can not find the fault! Hope someone...
View ArticleHandling multi-core simulations
Hi, I have a 32 core computer (2 processors with 16 cores each). I read on the help page that we can specify the number of cores to be used for a given simulation.My question is : If I start 2...
View ArticleMultiple Loads With Different Frequencies In Frequency Domain Study
Hi, I'm trying to evaluate the Transmission Loss on a glass panel when subjected to two different loads at the same time. In particular one is a boundary load representing an incident acoustic wave and...
View ArticleConvergence plot saved in results
I need to have Convergence plot saved in results. I red that it should be possible using Probe. What probe and what probe expression should I use?
View ArticleMore points on each streamline
I am studying Electrostatics on my geometry. When I create a streamline plot of the field with each streamline comprised of roughly 350 points (that I see when exporting the plot). is there a way to...
View ArticleBand Structure of SAW Phononic crystal
Hi,1) I would like to reproduce the results from the paper https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.10.064019 regarding the simulation of Surface Acoustic wave band gap of a...
View Articlewhen you can‘t install COMSOL it may because your Windows username is Chinese
When i want to install COMSOL , i have meet a situation that the COMSOL only come out a popup of "Setup is loading installation components. This may take a minute or two" and the popup disappeared...
View ArticleDetermining Thermal Conductivity
Hi, i am new to the comsol and the group. I am trying to find thermal conductivity of rock sample. I have thermal camera which i can use to determine the temperature of surface. I was thinking heating...
View ArticleInfo of Eliminated stiffness matrix
The below post is related to an archived discussionHi,The reply from Remi Magnard perfectly answered how to extract the imformation of the assembled matrice, such as stiffness matrix "K" or mass matrix...
View ArticleOscillating flow conditions
Hi I am doing a sample problem of a oscillating fluid flow in a channel (emulating fluidic diodes / tesla valves) and wanted to understand boundary conditions. I've tried searching the forum and did...
View ArticleElectromagnetic emission
Hello everyone, I want to make a simulation of electromagnetic railgun launch, but I don't know how to realize it. Do you have any suggestions？
View ArticleThrust and Torque Calculation in COMSOL
Hi,I am currently simulationg a rotating propeller with transient study. I have ran one case at a constant RPM speed, but COMSOL does not have any output file calculations to determine forces such as...
View Article