Magnetic Field in Axisymmetric Model
Hello,I am having trouble seeing the correct results from a current in a loop of wire in an axisymmetric model. I am using the Magnetic Fields physics and I've tried adding either an External Current...
View ArticleHOW to select output variable(mfnc.normB) as the input variable for the next...
I want to topology a domian (iron or magnet) where the nonlinear material iron need input the B ,so how can I set the variable ?
View Articleadding our own boundary conditions
I want to add my own boundary conditions. how to go for it?
View ArticleOscillating magnetic bearing problems
Hello everyone.I'm investigating a type of magnetic bearing and the eddy currents induced during axial displacement. I have therefore modelled a axisymmetric bearing. I'm trying to do a time-dependent...
View ArticleHow to simulate dendritic solidification with phase field method
Does anyone know how to simulate dendritic solidification with phase field method,Can we communicate,I need your help,thank you so much.
View ArticleAcoustic Module: Monopole Vertice Selection
Hi,I have imported a 3D mapping of a space and managed to mesh it and run a modal analysis of the space.My next step was to obtain a frequency response at specific locations within the space.I have...
View ArticleWhat is reference temperature?
dear everybody,may i know the function of reference temperature? i've read somewhere that it is only imporatant for solid mechanics problem, is this true? does it play an important role for fluid flow...
View ArticleCooling down a barrel of wort
Dear everyone,For a school project, I have to model a barrel of hot wort cooled down by cold water flowing trough a spiral. Since the barrel is pretty decent in size and there will be some convection...
View ArticleBoundaries not applicable (fluid flow in pipe)
To anyone and everyone,I created a pipe using the sweep feature. I can apply inner boundaries for the fluid, but when i look at my wall boundary conditions, all of the outside boudaries of the pipe are...
View ArticleAcoustic Piezoelectric Tutorial Help
Hi all,I am trying to study the effects of piezoelectric transducers on a fluid volume similar to traditional ultrasonic cleaning machines. I followed the piezoelectric COMSOL tutorial found here:...
View ArticlePressure acoustic and two-phase flow coupling
I have built a model of Pressure acoustic and two-phase flow coupling to simulate the break of droplets in an ultrasonic field, But when I was doing transient calculations on the two-phase flow part, I...
View ArticleError Message: No consistent initial values were found. Singular matrix.
Hello everyone I am working on a fillet welding time-dependent study. This error occurs: consistent initial values could not be found. The last step is not convergent.Error Message: No consistent...
View ArticleAutogenerating geometry in Livelink MATLAB using for loops
Hello, I am currently using the Livelink using MATLAB software and I was wondering if there was an effective way to automate the creation of geometry using for loops.I would like to be able to be able...
View Articlehow can I get rid of transient situation in Time Dependent study
I use "Solid Mechanics" and apply a sinusoidal displacement on a cube. I need the displacement of each point at different times. I use Time Dependent study, but the problem is that it shows the...
View ArticleStrange temperature drop in appendix
Hello,I have been modelling with COMSOL on a sealing seam of an aluminium composite film (PET, Al, PE) for quite some time. The basic principle is: Two hot beams heat two films on top of each other so...
View ArticlePorous medium flow
Dear everyone,Currently I am trying to build a model in which I simulate the flow of air through a concrete block. I am doing so with the Darcy's Law toolbox. As result I would like to see how far the...
View ArticleInterruption in streamline
I use spf from Laminar flow to simulate my design on water flow. But there's interruption in the streamline. I changed the flow rate but it didn't work. Attached is the interruption in streamlines, why...
View ArticleFailed to find consistent initial values. Singular matrix. Last time step is...
I used partical tracing for fluid flow(fpt) and spf from Laminar flow to simulate my design, I set inlet(including velocity field) and outlet for spf and fpt and release number and walls. It always...
View Articletransformer vibration
Now I need to simulate the acceleration of transformer winding, where can I find a reference case?
View ArticleHow to input a field variable from matlab to comsol
I am doing a structual optimization, and I can not find a way to transfer the design variable (a field variable) to the comsol from matlab. Can someone shed a light on it, please!!!
View Article