Dielectrophoresis
Hi there. I tried to observe the particle movement effect through the "particle tracing for fluid module". However, the result of particle trajectories didn't show up any particle movement. Please...
View ArticlePhysics for a elastomeric vibration isolator.
Good morning. I'm almost finished with my model. The model consists in : 1 - Base. ( Base ) 2 - Elastomeric Rubber. ( Borracha) 3 - Lid. (Tampa) 4 - Screw Hole.( Parafuso ) The Screw Hole receive the...
View ArticleHeat Transfer
Actually, I need to give boundary condition to one of the part of my system. At that part, I will use cryocooler of capacity 1 W at 4.2 K, how can I give this boundary condition to particular part. My...
View ArticleSpiral 3D inductor Geometry
Hello I am trying to simulate a 3D spiral inductor, but I cannot find the right geometric shapes given in Comsol 4.3a to build this coil. I have attached an image of the intended coil I want to build I...
View ArticleMultiple concentration step function
Hi, Have a great day. I am a new user of comsol 3.5 version, currently, I am working with chronoamperometry and I am trying to simulate that one using comsol by multiple concentration step functions....
View Article2D to 3D
Hey all, I successfully designed a spiral structure in 2d and got the desired results. Now I wanna transfer my model to 3d. I read few threads and tried to export my 2d file, When I import it in 3d ,...
View Articlethe free vibration of the cantilever
Hi everyone: The initial displacement D=1.05mm, is placed on the end of the cantilever beam, to solve the velocity response of the beam end. First, I select space dimension 2D, and add physics Beam,...
View Articlehow to plot graph b/w preeure vs displacement
i need procedure how to plot grap for pressure sensor and how to observe pressure and displacement value......
View ArticleThermal expansion model
I built a thermal expansion model, at temperature 700K. I want to examine the stress distritubion of the cross-section inside the expanded sample, how do I do that? Also, is there a way to visualize...
View ArticleMaxwell Stress Tensor
Hello all, I'm new to Comsol and Im having a little difficulty getting my head around how the Maxwell Stress Tensor operates. I understand its operation when applied to parallel wires (Like in the...
View ArticleModeling a water turbine using actuator disc theory
Hello, I'm trying to model the flow in a (simplified) tidal channel. For now there is one turbine placed in the channels (this might be extended to two or more). With this model I hope to study the...
View ArticleWhat is the method to calculate error?
I was fooling around with Comsol Multiphysics. I have found very interesting feature included in Comsol. Recently I was testing second harmonic generation module in it. The error is calculated and...
View ArticleImage to model, Image to material!!!
Hello everyone, Am trying to use an image function for an electrostatic problem. While trying to define the relative permitivity for the image i made use of analytical function as...
View ArticleFluid Compression
Hi, I built a simple model for fluid compression in 2D FSI model. A squre is build as fluid, and three sides of it are defined as wall, the other side in contacted with a PDMS membrane. There is a...
View Articledirection of current density and normal vector
Dear all, I have a question as regards the direction of the current density: I want to calculate the current density of an electrode which has the form of a cube. Obviously I have 6 planes with a...
View ArticleParticle tracking with freeze condition - how to not track frozen particles?
Hi all, I have a fairly simple model consisting of purely axial, laminar flow in a rectangular channel. These simulations are in the Stokes regime, and the flow is modeled as steady state. I would like...
View Article"Out of memory"
Hello, I have this system - a fiber optic cable glued on a concrete beam -, which I would like to calculate with Comsol. When I use a Finer mesh (which brings c.a. 96 000 elements) everything goes...
View ArticleElectrostatics using deformed result of solid mechanics
Hi, I am new to COMSOL, using version 4.1 to simulate a flexible capacitor. The goal is to have the geometry deformed using a Solid Mechanics simulation (which I have done) then simulate the behaviour...
View ArticlePlasticity - Cyclic Hardening
Hi all, I am modelling a process where a steel plate is subject to cyclic forces that cause plastic deformation. As the process is cyclic I am inclined to use the kinematic hardening option - I am...
View ArticleHow to calculate a value between two points?
Hello, I have modelled a simple 2D electric potential plot of a dielectric between two plates with a void in the middle. I want to know the voltage between across the void. I can get the plots on...
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