I need a help for my combustion simulation
Hi, It's not the first time that I expose my problem here. Is there any person who can help me to show me how to simulate a combustion reaction? I already done many tutorial, but till now i didn't...
View ArticleConjugate heat transfer Interface boundary condition
Hello All, I am new to COMSOL. I am trying to solve a 3-D conjugate heat transfer problem with volumetric heat generation in the solid domain. The problem is more like solving for a temperature profile...
View ArticleSpecifying location of an import CAD in the simulation
Hello Everyone, I've been searching for a while, but I have been unable to find a way to specify where in the design space you would like an import CAD to be located. Any help would be greatly...
View ArticleDifferentiation of electric potential
I have used Laplace equation module to compute electric potential for certain geometry. Now I would like to compute electric field lines, but I am not finding a way to do that. Please help regarding...
View ArticlePenetration and convergence in contact; viscoplasticity
Hi! My ultimate goal is to simulate metal extrusion, specifically interested in the streamlines of the metal flow as the billet deforms in the die. I'm applying a prescribed velocity at the top surface...
View ArticleTo find the temperature difference between two boundaries
I have built a model and found the temperature distribution over its surface. I want to plot over time the difference between the temperatures at two points over the surface. Please assist me in this...
View Articlesolid core photonic crystal fibers
hai. Iam doing research on solid core photonic crystal fibers I have doubt in calculating mode field diameter and confinement loss of solid core photonic crystal fiber Presently doing simulation using...
View ArticleNernst-Planck equation
Hey everyone, I am new in using the Comsol software (4.1). I want to model ionic behavior in a conical nanopore and need to solve the Nernst-Planck, Poisson and Navier Stokes equations. However I need...
View ArticleHow to get the current from current density
Hi Everyone, I am simulating a piezo electric transducer in COMSOL Multiphysics 4.0a. In order to get the impedance of the transducer at different frequencies, I need the current flowing at 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 ArticleQuestions about Darcy's model in Comsol gallery
I have some questions regarding Darcy-Brinkman example, Which I have found online in Comsol gallery. I will be more than happy if you can help me to figure out my problems or tell me how can I find my...
View Articlehow to simulate the breakdown voltage in COMSOL?
hi, how could I use COMSOL to calculate the breakdown voltage in the dielectric?
View ArticleImpact of 2 spheres
I am attempting to model the impact of two spheres in the structural mechanics module. I understand that COMSOL has trouble with contact pairs when performing a transient analysis, and this is the...
View ArticleModelling transport of species in porous media
Hi everyone, I hope someone can give me some advice. We are currently modelling pyrolysis of large coal particles which involves including for reaction kinetics, heat transfer and mass transfer. We...
View ArticleEddy current in model gallery
Hi, Have anyone captured the temperature distribution in the plate of the induction heating model in the gallery?
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 Articlequestion on livelink with matlab
Hi all, In fact, I am coming up with a wired simulation result. The problem lies in that, if I change the value of "tumor_radius" in the m.file, the location of the left point source, which apparently...
View ArticleModel 4.3 vs 4.3b not converging
Hi folks! I've just updated from 4.3 to 4.3b and I'm trying to get some convergence but to no avail. I'm using the Mixture Model with the Schiller-Naumann slip model for settling suspensions. I get...
View ArticleViscoplasticity: stationary and transient modeling
Hi! I am trying to work on a model that has both viscoplasticity (Anand model from the Nonlinear Structural Materials Module) and contact. First, it seems like I'm having penetration. A stationary...
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