Extracting results of specified coordinates
Hi, I am doing simulation and got a results of 2D plot as shown below. I want to extract the output of specific coordinates for example coordinate of (0,-1100), (1,-1100), ... (45, -400) , etc.. Do you...
View ArticleFlow and heat transfer through packed bed of spheres
Hello, The study is time dependent, it's 2D axisymmetric, and the physics used are laminar flow and heat transfer in fluids with heat transfer in solids node added to it. It is not converging and the...
View ArticleSpiral flat Coil Simulation
Hi there, I am trying to simulate a printed spiral coil and I am using the Coil sub-branch in the magnetic field physics. I would like to see the magnetic flux generated aroud the coil. In the...
View ArticleResidual stress
Hello all,I am trying to simulate the behaviour of a structure that goes through thermal stress. The temperature is applied through a time dependent expression and the temperature goes from 293K to...
View ArticleSimulating the Hall Effect
I have done a search on this forum and all the threads I have found are from years ago.Is there a simple way to simulate the Hall Effect? It really doesn't seem like it would be that complicated.All of...
View Article2D grid of points and curve fitting according to an equation
Hello Everyone, I need to fit a curve according to an equation, between the selected points in the 2D grid of points. I am making an app. in comsol where there has to be a grid of points, when I select...
View ArticleBuoyancy--simulating contamination of a buildings ventilation air intake by...
Hi all, I am trying to model a cross section of vertically aligned ventilation ports on the ouside of a building. I am using a 2D domain to represent this outside space where an inlet delivers warm air...
View ArticleRotational mechanics in microwave oven plate
Hi all i am trying to rotate plate ina microwave oven to study the process as well as as an exercise for roatational mechanics. while doing so ,i had some issues after importing the cad file. after...
View ArticleSimulation of photonic crystal waveguides to find band structure by COMSOL
Hi everybody,I am trying to simulate a photonic waveguide using COMSOL. The geometry is more or less as mentioned in https://www.osapublishing.org/ome/abstract.cfm?uri=ome-7-1-43.The point is that when...
View ArticleLaminar Flow from a cylinder into a block?
If I create only one block and create an inlet on one side and an outlet on the other I am able to simulate a laminar flow through that block. But as soon as I create a cylinder and a block, my flow...
View Articlenanopore
I would like to model nanopore sequencing. I probably have a record that holds a small of about 2nm. This plate separates two chambers. These chambers are connected through the hole. There is an ionic...
View ArticleFailed to find consistent initial values. Attempt to evaluate nonintegral...
Hello comsol community,I am in the process of coupling Electrostatics, Heat Transfer in Fluids, Transport of Diluted Species to Two Phase Laminar Flow (Phase Field) and having some difficulty. The...
View ArticleHow to construct particle tracing and analyze particle motion in the coupling...
In the coupling field formed by electrostatic field and fluid, only fluid flowing particle and charged particle physical field can be simulated separately at present. How to find a particle tracking...
View ArticleMultiphysics coupling
hello everyone,i'm tyring to model an isothermal flow of fluid through a pipe. the heated pipe will heat the fluid when it move along the pipe. my question is, in the multiphysics section, should i...
View ArticleParameter Values of Damage Integral Analysis in Bio Heat Transfer
In Damage Integral Ananlysis of Bio Heat Transfer Module the by default values of the parameters are as fowllowing as A=7.39E39 and dE=2.577E5. I am very much interested to know is this value used in...
View ArticleChecking for modules in COMSOL 5.2a
Hi,I am very new in unsing COMSOL 5.2a. Could you please inform how to check for existing modules in a COMSOL 5.2a inside a Cluster. Thank you.Regards, Koushik
View ArticleVoltage/current Source with harmonics
Hello,I wan t to apply a voltage or current source which is is square wave and it not sinusoidal purely. How can I define it as bellow: V(t)=V_acsin(2pift)+ (V_ac/3)sin(2pi3ft)+...
View ArticleExport boundary condition with boundary node in mesh
I have found the mesh result could be exported from the export options, but the output does not show the boundary condition with boundary node, it only contains the element numbers and corresponding...
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Shell-Shell connection
Hi all,I'm trying to model a shell with a thin film on top, modelled with another shell. In the geometry, I just have one surface, which I use in two shell-physics. In order to couple the physics I...
View Articlemodelling of moving laser heat source
Hi, I want to model a moving laser heat source for heating a hemispherical cavity. I want to define a helical path inside the cavity for the laser heat source but i am having difficulty in defining the...
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