Meshing Thin Films
Hi! I have two blocks to mesh, one into each other, in a 3D environment. The smaller one (inside) is the thin film: width = 100 µm depth = 9 µm height = 20 nm The bigger one (outside) is: width = 200...
View Articlewireless power transmission, 2 coil's
Dear all, I'm still relatively new to comsol but have some exercises through. Now to my task. I want to simulate an inductive transformer. N1= 21 N2=18 f=140kHz R1 R2 -----------|=====|--------...
View ArticleFlux through arc of circle
I have to compute a magnetic flux though an arc. I tried to specify a parametrized curve 2D to evaluate the integration but I do not know how to specify the minimum and the maximum value of the...
View Articleswept mesh
I am trying to simulate T-junction conduction-convection fluid flow. I am using swept mesh with rectangular mesh. When I start solver the solution progress becomes very slow and the computer seems to...
View ArticleLooking for someone with Comsol experience
Dear all I need some Comsol models to do in the next month. I don't have much time and experience to finish all so I am looking for some help. The simulation must be in the Ac DC module to model the...
View ArticleComsol 3D Simulations Memory Requirements
I am simulating inductor coil with shielding and square surrounding the arrangment. While solving the problem in 3D I am getting this error, for this much of DOF how much ram I would need to compute...
View ArticleMagnetic Fields: 2D Axisymmetric Model of Toroid Inductor
Hey guys, I want to determine the inductance of a toroid core + winding as shown in .jpg I specify an external current density, such that the current flows around the core (in r and z direction). Under...
View Articlecomsol not using the entire memory
I have 32GB of ram on my computer with an 8 core cpu, but the transient solver im using does not go beyond 7gb and my processors running between 40 to 60%. I looked upon a few threads on the forum but...
View ArticleTime dependent material properties
Hello I'm trying to make a simplified thermal model of a Li-Ion battery. I'm using the Joule Heating model and a time dependent study. I want to model the State of Charge with either an integration of...
View ArticleThermoelectric Model
Dear All, I am looking to find and study example models relating to thermoelectric effect modeling using COMSOL. Does anyone have any reference source/model on thermoelectrics which could be used ?...
View ArticleElectric Field Simulation Problem
Hi, I am trying to create a plot of electric field, but i failed to do it. I created a simple model of column, and I used the physics of "Magnetic and Electric Fields". I defined a electrical potential...
View ArticleThermoelectric PDE mode
Hello Sir, I am a new user of COMSOL. Currently I'm working on a model for a thermoelectric generator using PDE mode. After done with the layout, in the post processing result the temperature profile...
View ArticleThermoelectric Effect - Adding the physics
Hello, I'm working in a project on thermoelectric generator. As 'Thermoelectric' physics interface,is not in the physics area/physics list, I was trying to add the physics using the steps given in the...
View ArticleThermoelectric Effect
Hello, I'm working on Thermoelectric Generator and I would like to have a basic model with the equations used in COMSOL, Could anyone who worked in this field, please help. With Regards . Pheba
View ArticleDefining Simulation Region
Hi, I am trying to get the 3D Temperature Distribution for a 3D nanoscaled structure, where I use a plane wave source as a the heat source. For that I use the "Microwave Heating Interface". The...
View ArticleSynchronous machine (torque)
Hi, I am new to COMSOL. I am tryng to build three phase synchrnous machine model. I have applied three phase voltage to the machine but unable to generate torque in a machine, I do not waht is wrong...
View ArticleIs it possible to couple two modules?
Hi, I am simulating an open water channel (0.31m x 6m x 0.4m width, large and height) with k-e turbulence model. The boundary conditions are: walls and floor as wall function, upper boundary as open...
View Articlecurve cylinders
How can I draw a system of curved cylinders intertwined to form a portion of capillaries?
View ArticleMeshing in 3d geoemetry
Hi ! I am trying to solve non prismatic electrostatically actuated beam using COMSOL. I am finding very difficult to do mapped mesh since the geometry is having curvatures which is enclosed in a box....
View ArticleHeat Transfer through 2 physics / Coupling 2 physics
Hello! Im trying to figure out how to couple the modules "Heat Transfer in Solids" and "Heat Transfer in Porous Media". I made a simple example. Two blocks on top of each other. On Block has a heat...
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