Fluid Structure Interaction
I am trying to find out if there is a possibility to define and solve for a fluid structure interaction problem with a moving solid body within fluid surroundings (e.g. a ball of ice in a glass of...
View ArticleHow to deal with Contact problems, Adhesion!!
Hello Everyone, I am dealing with the topics of contact mechanics and adhesion. In my case, two surfaces are adhered strongly and I would like to model the detachment of contact or treat it as a crack...
View ArticleHow to simulate the water boiling by Level-Set method
There is a good example simulating water boiling by phase field. I am trying to use the Level-Set method. However, I was frustrated by many times of failure. My problem is how to deal with the...
View ArticleSimulation of Stirling Engine
Hello everybody I'm currently trying to simulate the fluid flow in a stirling engine (beta) which I've built from the following video:www.youtube.com/watch?v=X2qssmxA82U You should try building it;-)...
View ArticleWhen to use zero or nonzero conductivity for plasmonics?
Hello, We have looked at the Optical Scattering off a Gold Nanosphere model (model 12415) after trying on our own to solve for the frequency response of a gold nanosphere. We also attempted modifying...
View Articlecalculate resistance of a numeric multi turn coil in freqency domane is to high
Dear all, I hope anybody in this Forum have the same exipiriance width the multi turn coil damane. In my model i have a simple numeric multy-turn-coil domane. My problem is that the calculate...
View ArticleInduced voltage in a coil
Hi, I'm modelling an eddy current testing probe with the AC/DC module. The model is 3D, and I have a transmitter coil with an applied current and also a receiver coil with no current. I'm doing a...
View ArticleCoupling Stationary study -> Time dependent does not work
Dear all, I have a very simple model (attached): a 2D model where I impose an initial strain, that generates stress. This stress will be relaxed by creep. The stress caused by imposed strain is...
View ArticlePlotting scattered E field from nanoparticle dimers
Hello all, I am a slightly new user to COMSOL and I am trying to model Mie Scattering off of silver nanoparticles (AgNPs). When computing the scattered field for a single AgNP, the resulting E field...
View Articlecombined time-dependent and stationary solvers
Hi I have a coupled system of solid mechanics and magnetic field, and I want to solve the magnetic equation in time domain and solid mechanic ones in stationary case. they are bidirectionally coupled....
View Articlefinite element method
What COMSOL product is useful in solving a system of coupled (linear) differential equations by the finite element method? Thanks!
View ArticleUsing non-linear materials ε(E)
Hello to everyone. I encountered with a problem during using an nonlinear material, where a relative permittivity depends on electric field strength in a certain material. During the simulation I got...
View Article3D Model of "Voltage Induced in a Coil by a Moving Magnet"
Hi I wanted to do the 3D version of the Model "Voltage Induced in a Coil by a Moving Magnet" which is in the Comsol Library. I used the same physics, materials and boundary conditions, but...
View ArticleAmpere Law (mf module) and Magnetic flux conservation (mfnc module)
Hi all, I'm really new at comsol and I'm trying to study some models. Now I have noticed that there is an example of an electromagnetic quadrupole (name "quadupole") which is a 2D model and it is...
View ArticleElectrical Conductivity in the RF Module
Hey, I have a question considering the setup of materials in the RF module. Comsol offers three different parameters to set up the materials in this module: the electrical conductivity, the relative...
View Article3D simulation of drop coalesnce
I am try to solve the two drop coalescence by applying the two phase flow and phase field method in comsol. 2D it solve the problem very accurately. but 3D is not. kindly suggest any modification need...
View Articleapply a ground motion on a simple structure
Dear all, What would be the best way to simulate the ground displacement motion in COMSOL? Basically, I have a simple tube structure that is excited by a shaker and I would like to simulate the shaker...
View ArticleFinal Abstract Submission Deadline for COMSOL Conference 2013 Boston is...
Dear COMSOL Community, *TOMORROW* is the Final abstract submission deadline to this year’s COMSOL Conference in Boston! New and updated abstracts are coming in every day and I truly appreciate your...
View ArticleMeasured refractive index profile import to COMSOL
Hi, I have measured some fibers refractive index data and I want to analysis them in the COMSOL. I know use the RF module can solve the modes and I need to set the index either a single value or...
View ArticleCustomized BH curve
Hi all, I'm studing a quadrupole permanent magnet and I would like to know how to give comsol a customized BH curve. I'm using Magnetic flux conservation (mfnc) and here you can set the BH curve but I...
View Article