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How do I simulate a rigid ball impacting a cantilever beam?

Hello,I am new to COMSOL and I am trying to build a model of a small steel ball impacting a Piezoelectric cantilever beam, similar to the figure .I have not been able to find any tutorials or examples...

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Water vapor permeability and diffusion coefficient in air

Respected colleagues,I am working with the Heat Transfer / Moisture Transport in Building Materials modules. Regarding the basic input material parameters, there are two options for the specification...

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Result from Study outside of defined geometry

Hello!Currently I am simulating heat transfer with Heat Transfer in Solids and Surface-to-Surface Radiation. Looking at the result for the temperature distribution in my geometry I can see that there...

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How to simulate optical pulse induced heating in optical waveguide.

Hi,friend. I want to simulate the heat distribution when an optical pulse is sent to a waveguide. If the heat transfer solid with Electromagnetic Waves, Time Explicit(teew) or Electromagnetic Waves,...

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Laminar Flow & Transport of Diluted Species Feature

Hi you guys. I have questions about the Transport of Diluted Species module. My work is about simulation of oxygen concentration distribution in a micro fluidic device (micro well). In the well, there...

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Simple Livelink with Matlab example

Hello,Could someone please get me started with a really simple Livelink with Matlab example please? I am going through the tutorial examples but need a simpler example.Kind regards,Sinéad

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Loss in heat instead of heat flux at boundary?

Is there a way to simulate a defined loss in heat at a boundary? So instead of having W/(m^2K) you'd have J/(m^2K).Right now heat flux is the only time dependant variable that prevents my model from...

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Microfluidic pipe outlet with free velocity profile?

Hello everyone,I am modeling the flow within a microfluidic system, let's just say it is a straight pipe for the purposes of the question. The direction of the flow could be towards either side of the...

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Setting flow/velocity halfway through pipe

Hello,I am running a simulation to estimate the pressure accross a complicated microfluidic network, but let's say it is a straght channel. I have experimental data of the fluid velocity at the center...

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How to decrease slope of cell potential

I am running constant current simulations and have manipulated the parameters "Particle radius negative electrode""Particle radius positive electrode""Solid phase volume fraction positive...

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Increasing magnetic field area.

I need to perform particle tracking due to magnetic field. My magnet has a remanant flux density of 1.5 in x,y,z direction. Particles has relative permeability of 4.1. I am using 1. Magnetic filed no...

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Using Results as Material Parameters - Convergence

Hello everyone,I have an issue with a 2D axisymmetric model, although this same question applies to any model in COMSOL. Basically, I'm calculating gas evolution from a current distribution, and using...

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Shaker comparison

Hi all,I would like to compare the displacement of different model at their eigenfrequency. I have done a eigrenfrequency analysis and want to apply thre respective eigenfrequency to the model. As the...

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Passing on result of one study to another

I want to simulate 3 studies a) magnetic filed (stationary) b)laminar flow (stationary) c) Particle tracing due to fluid flow (time dependent) I divided it into two studies Study 1- Step 1 Magnetic...

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Simple ball compression with contact

Hello everyone,I am trying to solve a simple Solid Mechanics model in which I want to compress a ball in between two plates. The ball and plates are in contact, but for some reason the model takes...

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Iterate over ray dataset/Access ray by index

I am trying to analyze the results of my ray-tracing simulation in Comsol itself (i.e. not relying on "Export" nodes). As part of my analysis, I need a table where each row corresponds to a ray, and...

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Coordinate Dependant Variables and Deformation

Hi there. I've had a bit of a look around and I couldn't find an answer to a relatively simple underlying part of COMSOL's variables.If I define a load (in this case a volume force) on a mesh...

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comsol doesn't pick Lorentz force for structural step

Hello! I am experience a problem while picking Lorentz force from previous study.I have a coil (domain 4) where i will ramp the current and a steel region (domains 2,5, 10, 11) where I'm trying to find...

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Simulating Ion Beam Focussing by electrodes

Hello, I am modelling a system of three electrostatic electrodes to focus an Ar+ Ion beam. By using the "Einzel Lens" tutorial, I get good results if I choose electrons or positrons as Particles. But...

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Axial Flux motor

The below post is related to an archived discussion[start here]I am going for implementing Axial Flux motor for a mini wind turbine station but I need to model AFPM in comsol first. Can anyone help me?...

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