Simulation of balloon gore deformation under inflation.
Hello, Im doing analysis on the shaping of balloon gores cut from a polyethlyene/polyester laminate. The shape of the inflated balloon is used as an optical reflector and is therefore crucial to the...
View ArticleModelUtil.connect(solverHost, solverPort);
Hi everyone, I try to compair the results of two solvers running in parallel on two different comsol-servers. Therefor I try to establish a link from my Java-API to two comsol server. But only one...
View ArticleCreate a 1D line Plot of a 3d surface
Hello, I'am trying to do a simple simulation with a 3d hollow half sphere that is heated on the inner surface. The heating leads to a displacement which i want visualise in a 1d line plot. The plot...
View ArticleCurrent in Induction heating (Peak or RMS)?
Hello, When solving using the Induction Heating solver, can anybody confirm if the "Current Excitation" in the "Coil Group Domain" is peak or RMS? I have a suspicion that the value to be specified is...
View ArticleModeling Acoustic Metamaterial
Hi, I want to model an 2D acoustic metamaterial in Comsol. My target is to apply acoustic waves along one side of the geometry and calculate the wave amplitude from opposite face of the geometry. I...
View ArticleThree phase modeling
Hi there, I have a problem with coupling single phase and two phase flow (phase field) physics. I would like to model ice nucleation inside a water droplet. This droplet, however, is inside a laminar...
View Articlefrequency analysis
Sir, In frequency analysis how to do it for a particular frequency.where to add a frequency value
View ArticleHow can I extend the time range?
I use PDE model to solve time dependent PNP equations coupled with N-S equation. Attached is my model. Please run study 1 and study 2 firstly. Study 1 is for stationary solutions to prepare initial...
View ArticleRelative residual is greater than the relative error in heat transfer model
I have built a model of heat transfer including conduction, convection and radiation. When the model was computed with coarse mesh, it worked well, but when I refine the mesh, solution returns this...
View ArticleHow to run!
Dear users, I just installed the Comsol 4.3 trial version on my mac (OSX) , but I am not able to run it. I don't have any application form file to run the software ! what could be the problem. any...
View Articlepoint settings (pressure) in bubbly flow mode
Hi everyone, I have a question about the point settings in bubbly flow mode in comsol 3.5a. After I select one point, I am asked to set the pressure value. What is the definition of this pressure?...
View ArticleMemory problems with mphinterp
I have a large RF simulation, and I need to get the value of the electric field on a rather dense rectilinear grid. For this, I have been using mphinterp. However, I have been running into the problem...
View ArticleVariable modifications between solution iterations
I'm developing a transient model using the Livelink interface. The model first calculates an initial solution for the first time window, then I would like to modify the state variable values due to...
View ArticleHow to export data in excel format?
Hey Ivar, I want to export my figure into excel format. and replot it in matlab. Is it possible ? Thank you very much!! Baofeng
View ArticleSaving probe tables in a parametric study
Hi, I am using several probes to plot and also write the data to a table during solving. With the new version, since we have the option to save the table in the model and as a separate file as well, I...
View Articleexport error
Hi I run a simulation and tried to export the results. I am getting the following error . Unknown property, property: spacevars. what does it mean?
View ArticleStationary study of a beam immersed in water
Hello Everyone, I am trying to analyze stationary behavior of a single-crystal silicon cantilver beam which is immersed in water. To do this, I have used Fluid structure interaction module. I apply a...
View ArticleHow to check mass balance?
Hi, I was wondering if there is any way to check the mass balance in Comsol? It's kind of hard and time consuming to calculate the mass balance by hand, so does Comsol provide it for users by default?...
View ArticleHow to solve a general PDE without any physical meaning?
I am a learner for COMSOL. I am trying to solve a general PDE without any physical meaning. If anyone could help me on this or show me any tutorial, I will appreciate it very much.
View ArticleNew Book on Chemical Engineering Computing Available
Hi there, I just want to share with all of you that a new book about chemical engineering computing has recently been released. Written by Bruce Finlayson, it's the second edition of his book...
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