EMF measurement in the secondary coil of a flat transformer.
Hello, I am a new user of COMSOL, at the moment I'm trying to build a model of a flat printed transformer. The model includes two square-shaped coils: primary and secondary, located inside the...
View ArticleFailed to find a solution. Singular matrix.
I am getting the following errors while doing simulations. While doing meshing, I did not get any error but after running the solution it showed me all the below errors. Please help!1) No mesh on...
View ArticleTwo way coupling of PDEs
Hi all, Essentially I have 2 coefficient form PDEs. The first equation solves for dependent variable u, while the second equation solves for dependent variable q. For the sake of simplicity, the...
View ArticleHow to implement Robin boundary condition ?
Hi,I'm trying to define a Robin boundary condition like "alpha(T1-T)=kdT/dx" for a heat transfer problem (time dependent). My first try was defining convective heat flux q0=h(Text-T), here the equation...
View ArticleNeed help understanding the correlation for heat generation between the 1D...
I am new to COMSOL and have been going through some of the tutorials for batteries. I completed the tutorial 'Thermal Modeling of a Cylindrical Lithium-ion Battery in 3D' and have a question about one...
View ArticleElastic Wave Propagation in Anisotropic Media and PML
Hi Everyone,I am experiencing an issue regarding PML in anisotropic media. I am interested in wave propagation in anisotropic elastic media thus the PML is also the same medium as propagation domain...
View ArticleInward current
Ciao tutti"Inward current density" as a boundary condition troubles me. How is "inward" defined? I used that BC and then checked what the electrolyte potential at that boundary was. Then I changed the...
View ArticleThe soft nail calculation basis of the band diagram corresponding to the wave...
Hello, I would like to ask what theoretical basis (equation class) is used in comSOL software to draw the energy band diagram corresponding to phonon crystal?In the lower part of the energy band...
View Article*Friday, July 17* Early Abstract Submission Deadline for COMSOL Conference...
Hello COMSOL Users!Friday, July 17, is the early bird abstract submission deadline for the COMSOL Conference 2020 North America. Submitting your abstracts by this date will qualify you for a reduced...
View ArticlePlot a solution from a dataset in Matlab
I am using parameter sweep in Comsol 5.5 to solve a contact problem (Stationary with Augmented Lagrangian). One of the surfaces is a rigid object with predescribed displacement (defined and ramped by...
View ArticleTime-Dependent Current in Coil - MF
Hello,I'm attempting to generate a time-varying current in a circular coil to observe the induced electric fields, but I'm running into some issues.First, when I enter a constant value for I_coil, I...
View ArticlePlotting and Exporting Density Data
Hi there,I encountered some difficulties as I tried to include the material density as part of the data to be exported. What I'm trying to do is to solve for the temperature distribution of a model...
View ArticleMelt and heat distribution
Hi,I am doing laser ablation experiment. How can I melt that material? I am doing both with metals and dielectrics.Thanks
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