mphgeom(model) for JavaAPI
Hi everyone, does anyone know the name of the function for the JavaAPI to displaying the geometry of a loaded model? for matlab there is one called mphgeom(model), but I'm looking for the java. Thanks...
View ArticleInduction Heating 3-D simulation in COMSOL 4.2
Hello, I'm trying to simulate the Induction Heating in 3-D simulation. Could you please tell me the components of Induction Heating (such as: Sufface Current, Ampere's Law, External Sufface Current...
View ArticleMagnetic force imposing on magnetic fluid in 3D magnetostatic field (no...
Hi Everyone I try to do with a simulation of magnetic fluid imposed on magnetic force in magnetostatic field (no currents), but the results show that there seems to be no magnetic force on magnetic...
View ArticleError in solver
hi, I am modelling a 3d accelerometer in 4.2a version, during simulation i m getting an error like "out of memory during LU factorization" , could anyone pls tel me why i am gettin dis error..
View ArticleHeat source
Hi all, I have a model composed of three layers, three different materials. How could I insert a triangular power profile(as heat source) in the second domain. Example of power profile ( t=0s P=0w;...
View ArticleConjugate heat transfer pipe flow
Hello, I am trying to simulate a very simple laminar flow inside a pipe problem with a constant temperature at the walls. I have a cylinder made of water(liquid), and where one part is kept at a...
View ArticleIs there an easy way to create a high number of geometric components with a...
Hi all, I am using COMSOL 4.3 to simulate a 2D photonic crystal waveguide made of air holes in a dielectric (using the emw study of the RF module), and I wish to look at how roughness around the holes...
View ArticleError:-18, COMSOL with MATLAB
Dear COMSOL Experts, When I run my own created model using COMSOL LIVELINK with MATLAB, COMSOL with MATLAB window shows an error:-18. After all the commands in the function scripts are executed, it...
View ArticleTo draw a packed bed filled with spherical particles
Hi, I am wondering if it is possible to draw a packed bed with spherical particles in COMSOL. I have a cylinder and I want to put inside 1e9 spherical particles. Is that possible? Regards,
View ArticleFailed to find consistent initial values in a mass transfer model
Hi. I am trying to simulate a simple model of transient mass transfer of a specie from a solid to a fluid. When I run the simulation I get the message: "Failed to find consistent initial values". I...
View ArticleComsol 3.5a
How to non dimensionalize a navier stokes equation in terms of reynolds number in comsol 3.5a
View ArticleI want to measure insertion force!
Hi, I'm the student in Korea. I need some helps..! I'm doing a simulation of insertion force of needle type electrode using COMSOL 4.2a. But I have some problems.. What I want to do is measuring...
View Articlefrequency-dependent material - with coupled physics
Hi, In the RF module, I have two EMW physics (emw1, emw2) with user-defined frequencies, f1 and f2, which are fully coupled and solved simultaneously in the frequency domain. So for example,...
View ArticleError: Relative error is more than the relative tolerance.
I am trying to learn COMSOL. So I am trying a simple problem in structural physics, wherein I have a cylinder with a cavity. The cavity has a steel bolt grouted to its walls. Now a force is applied on...
View Articlemagnetic field -problem with mesh in a frequency domain study
Hello, I have some convergence problem in my 3D study. I build a geophisycal magnetotelluric model, a stratified earth (layers at different electrical conductivity ). I will measure the impadance at...
View ArticleModelling of flexible raft
Hi I'm trying to model the fluid structure interaction of a flexible raft being towed through water. I've tried to use the build in FSI module. I have modelled the raft as a linear elastic model and...
View ArticleNon-Newtonian Carreau Model Fluid
Hello, While solving the Equation of carreau model. I got a doubt. Her is the doubt The equation is given for the carreau model fluid as mu_inf = mu_inf +(mu_0-mu_inf) [1+lamda(gamma_dot)^2]^(n-1/2)...
View ArticleStep function
Very simple question, but I can't find out how to do it. I have a external temperature, "Temperature 1", which is 100 C. After 330 seconds I would like it to drop 80 degrees to 20 degrees. I should be...
View ArticleHow to use deformed mesh ?
Hi, I want to simulate two physics sequentially: the first one is solid mechanics and the second one is electrostatic. My geometry is simply two parallel plates and want to sweep of the force and get...
View ArticleLight/Heating in tooth
Hi all! (Hi Ivar!) I am currently trying to modelise the transformation of light into heat within a tooth. (You shine the tooth, and some light is transformed into heat by absorption) I have...
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