Hysteresis loss Modelling of Inductor coil
Hello I have simulated inductor using AC/DC module and I have calculated the inductance and magnetic field around the inductor but now I want to calculate the hysteresis loss in the inductor. For that...
View Articlefree boundary conditions
Hi everyone! i'm at the very first steps with comsol. i'm building a model that simulates the tumor growth. the equations that describe the growth are initially defined in a spherical small domain (the...
View ArticleApply load to a deformed mesh/geometry
I have applied load to a hypeelastic material model for a stationary structural analysis and I have gained the deformed result. I am trying to apply the second load to the deformed boundary on the...
View ArticleModeling endovascular ablation
Hi, I am trying to model endovascular ablation. I checked the video tutorial on tumor ablation, and used some tips from it, but in my case, I also have a laminar (blood) flow within the vessel. My...
View Articlelaminar flow in tube
Hi iam new to COMSOL i want to design flow in tube and valve to obstruct in the end. By changing the valve positining i want to simulate the strain distribution on the surface of cylinder(tube) can...
View ArticleSeparating mesh of sub-domains
Hello every one i made a model when has 3 sub domains, i want to export the total Mesh of my mode. file->export->Mesh to file and saved. this file includes the node and element information of...
View ArticleDefining the outflow boundary condition for PDE interface
Hi, I am modeling species flow and transport in fracture-matrix system. Fracture is a thin space on left-side with connected matrix on the right-side. Dissolved species in water enter at inlet of the...
View ArticleSuperfilling only inside the trench
I need to modify the COMSOL 4.3 "Superfilling" verification model (provided in the Electrodeposition examples), in such a way as to consider only the inside walls (two vertical and one horizontal in...
View ArticleThin Thermally Resistive Layer on top of Boundary Heat Source
Hello everybody, I want to simulate a flat mikroheater on top of a foil that is covered by a liquid. Since the foil has a thickness of about 100µm and the liquid covering the heater has a height of...
View ArticleTwo solids in contact with relative movement
Hi I was wondering if there are any comments on the problem that I am working on it at the moment. Basically, consider two solid cylinders (like piston and cylinder) that the first one is moving inside...
View ArticleWho has Comsol model of the Modeling Hysteresis Effects
HI everyone, I have a tutorial on Modeling Hysteresis Effects (in Comsol 3.5). Currently, I need this model for reference of hysteresis loss analysis. Anyone who has this please share the model here?...
View ArticleHow can I export an eps image (vector graphics)?
Hello, I would like to export an image of the model geometry as an .eps file (vector graphics). I could not find how to do that and it seems that the only options are jpg, png and bmp. Thank you.
View ArticleEvaluate the electrical voltage from the magnetic field (mf) physic
Hi ! I need to calculate the electrical voltage of an electric conductor subdued to a magnetic field. The conductor is excited by a current density using magnetic field physic (mf). I want to simulate...
View ArticleRecreating Jet Flow in COMSOL
I have temporal and spatial velocity profiles that I would like to try and recreate in COMSOL. At 0mm from the nozzle (d = 2.4 mm) the velocity is 110 m/s and at 12 mm the velocity is about 100 m/s. It...
View ArticleFluid flow with a moving solid object/hole
Hello, I would like to model the airflow in a room occupied with people, and to allow the people (cylinders) to move around in the room. Is this possible in COMSOL? For a silly example in 2D: I have a...
View Articlemode analysis of a waveguide
Dear all, I'm trying to reproduce the results which is on www.comsol.com/cd/direct/conf/.../11847_frezza_presentation.pdf (Comsol conference 2011, page 7, symmetric case, neff). Could you let me know...
View ArticleModeling rigid components
Hello, I am working on a contact model where one object is much stiffer than the other. In other modeling programs I have used it is possible to assume the very stiff surface is infinitely rigid...
View ArticleTransient Drug Diffusion Across Cornea
Hi, I'm doing my first Comsol project and need some help. My project involves modeling transient drug diffusion across the cornea and I would like to show my end results through a transient diffusion...
View ArticleTime solver dynamics - advice
I'm in "currents and voltages" applying a current density pulse within a copper short going through the glass dielectric of a spherical copper capacitor. This is a biological equivalent, there is no...
View ArticleHow to construct a new equation in COMSOL interface? What kind of file format...
Hi, Anyone can suggest me some way to construct my own equation in COMSOL? Thanks Alex Lee
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