What is the mathematical expression for the transition operator "flc2hs"
Dear all,I want to use "flc2hs" as a transition function in my model. However, I don't know the exact mathematical expression of the operator. Could you please provide me with mathematical...
View ArticleHow do i calculate specific absorption rate for 1gram or 10 gram tissue in...
Hello everyone,Can anyone tell me how should i differentiate between 1gram and 10 gram specific absorption rate calculation. Unlike comsol, CST has inbuilt option where we can calculate the SAR for...
View ArticleUsing step function to generate mixed Cauchy boundary condition (Rainfall...
Hi,I am simulating a hydraulic performance for a 1D soil layer. I am trying to model a heavy rainfall event which will generate surface flow. I assume that the water in each time step will either...
View ArticleGraphic problem
Hi everyone,I have some issues with Comsol 5.3, in particular when I open the software a strange screen appears (see the attachment) and I'm not able to work. After some minutes, an error message comes...
View ArticleIs there any interest for a COMSOL StackExchange community?
Hello everyone !I have been participating on this forum for a few weeks and I came to the conclusion that this community could really enjoy the use of a StackExchange website. This thread is an attempt...
View ArticleUsing stationary state plus a local perturbation as initial condition
Hello,I am working on developing a time dependent simulation of a system of pde's that I have already set up. The system of pde's has 32 variables to be solved for. I am having trouble defining the...
View ArticleChange location of COMSOL's out-of-core file
The below post is related to an archived discussionIn absence of a posted answer to the question of changing the location of the out-of-core files due to memory limitations, here is a proposed...
View ArticlePARDISO out of core
HiWhat exactly does this warning mean? I should have a better laptop with more cores?BR Lasse
View ArticleHow to displace each meshed nodes in Comsol with different displacement values?
Hi,I have a displacement and stress output of a stiffened panel solid model from other FEM package (Ab..q..s) . It is not possible to generate this model geometry in Comsol alone due to sophisticated...
View Articlebubble sound simulation
can I use COMSOL to build a bubble sound simulation,is it possible?
View Article3D Time Dependent Electric Currents Model
Hello,I'm currently using Comsol version 4.2a and I'm having difficulty solving a time dependent electric currents model with a variable current source. The current source is a 300 Hz Biphasic pulse...
View ArticleGraphic issues
Hi all,I have a lot of problems with COMSOL 5.3 and I'm not able to solve it alone. When I open it, the softare crashes: the UI is completely strange, as you can see in the attachment file.Could you...
View ArticleSupercooling effect using the PCM module in Comsol
Hi,Is it possible to capture the sharp peak in the temperature due to the supercooling effect during the freezing of phase change material? I tried to do so, however the peak happens gradually, even...
View ArticleNon-isothermal flow, thermal expansion and structural mechanics
Dear Comsol experts,I have a project where I simulate the cooling of a polymer part in a steel mold that is cooled by water (injection molding). The mold is initially at the same temperature as the...
View ArticleRE: Comsol multiphysics license (mac) for student
Dear Sir, I am mathivanan periyasamy doing my mechanical engineering bachelor's program (student) in Vilnius gediminas technical university. I am interested to learn and work on projects using comsol...
View ArticleWater leakage from a buried pipe in the depth of one meter in clay.
Hi Everybody, I want to create a 3D model in Comsol for a leaking pipe at the depth of 1 meter in unsaturated clay (water table is very low). As the type of soil is heavy clay and the velocity of flow...
View ArticleFacing problem with incorrect reflection and refraction output
Hi everyone, I am new COMSOL user, I want to analyze the reflection and refraction of silicon material with different light incidence angle. Absorption of different wavelength light also wants to...
View ArticleIntegrating an expression over discrete volumes within a domain
Dear COMSOL community,I have a cylindrical domain as part of my COMSOL model, where I solve for the volumetric convective heat transfer (in W/m^3), among other things. When I use volume integration on...
View ArticleA Simple Model for Forces of a Loudspeaker Driver?
Hi, i'm a Wood Engineering Student and i'd like to be able to model loudspeaker enclosures as function of the mechanical coupling of the speaker driver(s) to the enclosure itself. I know there's also...
View ArticleFire retardant coating
Dear Sir/Madam, I am working on Fire retardant which is a mixture of different material. I want to use model for related to this. can you tell me how can i used comsol.
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