I need your help pls
Good afternoon, I'm killian, I'm working on a model on Comsol which lets calculate the angular rate of an object in a uniform magnetic field over time. It's the same model as you migh have. To make it...
View ArticleNeed a Help!! Band diagram & extracting eigenfrequency which I solved with...
I have to plot a Band diagram in 2D Photonic Crystal. I worked in Eigenfrequency model, which I reached via RF module > Electromagnetic waves, Frequency > Eigenfrequecy. After using parametric...
View ArticlePeriodic boundary condition
Can the periodic boundary condition be applied to a transient model (laminar flow equation). I have a fairly complex geometry which has a repeated pattern. I am hoping that I can use a small subset of...
View ArticleBeam excited by a shaker
Hi All, I aim to model a simple beam excited by a shaker. I am using the Solid Mechanics. I would like to know how big is the displacement of a particular mode (eg first flexural) when I excite the...
View ArticleTransport of diluted species and electrostatics
Dear Community, I am trying to combine the physics of the poisson equation (electrostatics) with the nernst-planck (transport of diluted species) in Comsol 4.1 for like 6 weeks now, and all I get is...
View ArticleError linking Heat Transfer in Fluids and Turbulent Flow (Spalart-Allmaras)
I am using COMSOL Class Kit 4.1 to model a pretty simple flow of hot air in a vertical pipe. I was able to get the model to working using Laminar flow (all are steady state studies) and the Heat...
View ArticleCOMSOL Error for Initial Values(RF Module)
I am defining a model with different concentrations of oil and water and trying to measure the heat distribution by using the microwaves. But I obtained the error mentioning Initial values: THE...
View ArticlePeriodic boundary condition
Can the periodic boundary condition be applied to a transient model (laminar flow equation). I have a fairly complex geometry which has a repeated pattern. I am hoping that I can use a small subset of...
View ArticleSelf and mutual inductance Calculation 3D (Ivar Kjelberg)
Hello, I am a newbie in Comsol and i am using the version 4.2a right now. I am trying to calculate the self and mutual inductance between 2 coils in 3D. i tried to search for different solutions in the...
View ArticleError: Parameter lists gives empty sweep
Hello, I would like to know the reasoning behind this error in return of a monotonously incresing series of frequencies. Examples: a) 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90,...
View ArticleParticle Tracing time plot
Hello, I am attempting to create a 2D map of drift times from release until contact with some defined surface. Is this possible to do in COMSOL? If so, how?
View ArticleConcentric Cylinders Viscometer
hi everybody, We are a group of students and we are doing a viscometer with concentric ciylinders. We need to do a simulation of velocity in the time (depent time) and we have a problem with the...
View ArticleDe-icing of wing
Hi, I'm doing simulation of deicing of wing due to heating up sections of the leading edge of the wing. However, when I go through all the boundary set up and run the solution. I get an error:...
View ArticleFind Inertial Modes, Eigenvalues for a Sphere of Fluid
I am new to Comsol and I am trying to find the eigenmodes of a rotating sphere filled with water in the rotating frame. I have specified the sphere filled with water with free slip walls, specified...
View ArticleError in inductor modelling with Magnetic fields interface
Dear all, I'm using the Magnetic fields interface on an inductor model I'm currently working on. The idea is to do a multiphysics coupling with Heat transfer in solids so that I can compare it with...
View ArticleObject in a magnetic field
Good afternoon, I'm killian, I'm working on a model on Comsol which lets calculate the angular rate of an object in a uniform magnetic field over time. It's the same model as you migh have. To make it...
View ArticleParametric Study making functions
Hi there, I am doing a parametric study with a variable T_initial for a frequency domain simulation for a fixed range of frequencies, this worked well I need now to change the set of frequencies with a...
View ArticleI need your help pls
Good afternoon, I'm killian, I'm working on a model on Comsol which lets calculate the angular rate of an object in a uniform magnetic field over time. It's the same model as you migh have. To make it...
View ArticleNeed a Help!! Band diagram & extracting eigenfrequency which I solved with...
I have to plot a Band diagram in 2D Photonic Crystal. I worked in Eigenfrequency model, which I reached via RF module > Electromagnetic waves, Frequency > Eigenfrequecy. After using parametric...
View ArticleBeam excited by a shaker
Hi All, I aim to model a simple beam excited by a shaker. I am using the Solid Mechanics. I would like to know how big is the displacement of a particular mode (eg first flexural) when I excite the...
View Article