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Segregated Solver, Segregated group
What is the meaning of "Segregated Solver" and "Segregated Group"? While computing for the results, I am getting a line like follows... "Segregated Solver 17% Step 3" . And the value beside Step in...
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Ill Conditioned Preconditioner
Hi everyone, I haver been trying to untangle this ill conditioned error with different meshings, which I think is the cause of the error. The temperature distribution in the soil (from 3D plot group -...
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E or E1 or E2 in my plasma model
Hello, I am trying since some days now to "copy" the microwave heated 2D model to a different geometry. My geometry is axial-symmetric in real. But I first started it in 2D only, but since I am not...
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domain deformation while doing moving mesh
Right now i am solving a moving mesh problem where the particle is moving in the domain. i have used moving wall and prescribed mesh velocity for the problem. It is doing fine for sometimes , however...
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How to set displacement from study 1 as prescribed displacement in study 2?
Hey, I have a trouble with defining a prescribed displacement. Let's say that i received displacement of the edge caused by heating of sample. But displacement of this edge is different in every point...
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Importing real data heat flux boundary condition to COMSOL
Hello all, I'm working on a 2D transient heat transfer project and I can't figure out how to import real data for heat flux vs.time in COMSOL. It only allow me to input a fix value or function, not...
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eddy current
how to get the imaginary component (phase) in the inductor in the high-frequency alternating magnetic field? Comsol 4.2a Help me please
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Stresses built up in a rotating disk
I am trying to analyze the stresses built up in in rotating disk. This disk is not subjected to any external loading. Only forces applied is centrifugal forces due to rotation. When I try to model the...
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Use of Ports to calculate the Transmittance and Reflectance of an array of...
Hi everybody, +Problem: I want to simulate an square array of gold nanorings, in order to get the graphs for the transmittance and the reflectance and find the resonant frequency. +My first approach:...
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2D hinge in compliant mechanism
Hi all, I am trying to simulate a compliant mechanism as seen in the attached picture but I am having difficulties simulating the rotating pin in 2D. As see in the picture the structure is composed of...
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Not able to properly use remesh feature in multiphysics stationary simulation
Hi, I have simulated a steel specimen that becomes deformed due to bending. For that, I use the solid mechanics interface in a stationary study. Parametrizing the magnitude of bending also works....
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Local maxima of solution
Dear all, I use comsol to solving a certain EDP problem (Laplace equation for exemple in crown domain: 2D or 3D domain). The solution is noted 'u'. I want to calculate the all local maxima of the...
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How different are these?
Hi, i am a student in republic of korea. My model is to observe how E-field enhancement is made by constructing nano gold patterns on a slica galss, applying incident laser from z-axis. However, I have...
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"No frame is defined for 0D applications"
Hello again. I am trying to simulate an E-core transformer. When I click the study 1 and select the show default solver there is an error occurs "No frame is defined for 0D applications" . What is it...
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Electromagnetic actuator
I have problem with coupling the magnetic that generated by 2D Coil with permanent magnate to actuate the cantilever beam. Also, I have faced problem to specify the boundary of moving mesh that is...
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Troubles with reading COMSOL text data files and files with interpolation...
Hello everyone! I have some troubles with creating my own reader for COMSOL text data files and files with interpolation functions. I have read "The COMSOL File Formats" section of...
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Electrodeposition of chrome
Hello, We are trying to model a chrome plating process with a non-dissolving (inert) anode. We used the Tertiary, Nernst-Planck module with a moving mesh. We set up the electrodes as "External...
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Error in Jacobian
Can I know what the error means??"Failed to find consistent initial values. Segregated group 1 Failed to evaluate operator Jacobian. Operator: nif, Geometry: 1, Boundary: 12 13 14 15 17 18 19 20 24 25...
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Time to Reach Steady State in a Diffusion Problem
Hello, Is someone able to help me, please? I'm using COMSOL to model a diffusion problem. I have solved it using the stationary solver. I am able to see that at steady state the concentration on the...
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Surface impedance
Hello everyone, I want to plot the surface impedance of my simulation. Can I do it in COMSOL? How I do it? Thanks Gustavo
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