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Meta-Surface Design based on Existing Paper

Hello,I am new to Comsol and simply trying to recreate the meta-lens design outlined in the linked paper, COMSOL Multiphysics Software as a Metasurface Design Tool for Plasmonic Based Flat Lenses....

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heart model

Dear Experts!I am a biomedical engineer student and beginner at using comsol. For my senior design project I will make whole heart model with blood flow, but i don't found examples and steps in...

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Streamer Propagation in Nanofluids

Hi,I am currently working on the use of nanofluids as transformer oil in place of mineral oil. I am trying to simulate the IEC 60156 test to see the breakdown phenomenon of a liquid and the streamer...

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how to use The Conjugate Heat Transfer, Laminar Flow multiphysics interface...

hello I want to do the semulation of a PVT solar collector if there is an exemple please give one

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Model corrugated plate as an equivalent orthotropic one

I have a problem that includes a corrugated plate. In order to reduce the degrees of freedom of the problem, the corrugated plate can be modelled as a normal one with an orthotropic material. Then...

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Sliding wall with Euler-Euler model

Hi.Does anybody know how to create slinding wall boundary condition when using the Euler-Euler two-phase Model? It seems that in this model, wall cannot be a sliding wall.Thank you.Mehrdad

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Problem with LiveLink for Matlab mphstate

I´m currently working into LiveLink for Matlab and COMSOL and encountered a problem when trying to extract the system matrices (for model reduction) when applying the "mphstate" command. On the one...

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battery cycling

I competely copy the Capacity Fade 1d model in the case base except the dimension is 3D, but it reports error: error:No consistent initial value found The last time step does not convergeAnd one sub...

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Reduce flow rate when specified max pressure reached at inlet

Dear All,I would like to have reductions of flow rate whenever specified max pressure reached over time. At inlet boundary, the flow rate starts with 0.25 [gal/min]. Afterwards, the inlet pressure...

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Capillary Filling — Phase Field Method

I have a question regarding the Capillary Filling – Phase Field Method (https://www.comsol.com/model/capillary-filling-8212-phase-field-method-1878).I noticed that when I plot the variable psi...

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Simulation of a resin transfer moulding

Hello everyone! I need to simulate a resin transfer moulding on comsol. Basically I have rectangular fiber (maybe we modeled it as porous) Then 1 inlet with epoxy and outlet. I want to know how long...

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3D Coil-Symmetry simulation

Hallo, i want to simulate rectangles multi-coil with symmetry. But my simulation is always failed. My study steps are, coil analytic and frequency domain. You can find my modell in attachment. I thins...

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Acoustic Source

Hello,I am trying to assign a half circle as an acoustic source in 2D axisymmetric. This is done to obtain a spherical source in the 3D result.What would be the best way to do this?KR,Adrian

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Error during Multiphysics

I made a model on COMSOL and as I ask it to simulate, it tells me that there was an error during multiphysics. I have no idea what it means. Can someone help me with it?I have attached the screenshot...

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Electromagnetic force on a current carrying wire

A varying current (square wave or antyng) passing through a wire. A metalic strip has kept so cose to it. wire connected to cathode and metal to anode. Metal sheelt is fixed and wire is flexible. Can...

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LiveLink for MATLAB

when I run the program from MATLAB, the run are usually errors with message shown below, please any help or hintError using A (line 165) Java exception occurred: Exception:...

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Return non converged values of batch sweep

Hi,I'm using a batch a batch sweep to simulate drainage with different inlet pressure each time. The model needs to simulate a large amount of time, and due to the nature of the physics involved, it...

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Where can we find COMSOL API, Thank you!

when I read LiveLinkForMATLABUsersGuide.pdf, when I click some links, it shows me "C:\Program Files\COMSOL53a\Multiphysics\doc\pdf\LiveLink_for_MATLAB..\COMSOL_Multiphysics\comsol_api_geom.pdf File not...

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Plot properties of material

Hi,I am using Comsol 5.3a, RF Module.I created a analytical function to vary the permittivity through the axis x in a block solid. How can I plot the function for to see the behavior of the propertie...

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Defining a domain within an imported SolidWorks part

Hi,I have a SolidWorks part which has holes for tubing in it. When I complete the laminar flow physics, the flow is going through the whole part instead of the holes where the tubing is. How do I...

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