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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...

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free 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...

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Apply 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...

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Modeling 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...

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laminar 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...

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Separating 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...

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Defining 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...

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Superfilling 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...

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Thin 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...

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Two 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...

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Who 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?...

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How 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.

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Evaluate 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...

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Recreating 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...

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Fluid 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...

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mode 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...

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Modeling 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...

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Transient 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...

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Time 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...

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How 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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