tic/toc in matlab for COMSOL
I have a model inside a for loop and occasionally it runs into an extreme parameter value and I want to just skip that iteration. I tried increasing the interations a lot and then saying skip the...
View Articlei m new to comsol 4.2 so if any one could help me in the micro beam resistor
about microresistor beam
View ArticleSimulation of a sollar collector
Hi everyone I'm a French engineering student and I need to simulate a solar collector in COMSOL multiphysics. I build the panel with glass, air gap, copper, water and insulation but I have a problem...
View ArticleDISPERSION Modeling
Hi frndz! I am working on a model of the dispersion of gases which i have uploaded here. It is time depended modeling and In stationary case there is no error but when i Run for TIME depended case i...
View ArticleCopper Deposition in a Trench - Simulating the closure of the trench...
I need to simulate the closure of the trench for the example provided in the Electrodeposition Module as a tutorial model: Copper Deposition in a Trench. Attached you can find what happens after 14...
View ArticleUse of lower limit in segregated step
Hello Im solving a coupled problem that has turbulent flow and reaction, to certain values I obtain negative values for concentration, but I see there is a lower limit after calculation of ep and k...
View ArticleAC field Simulation
Hi, I have to do a simple Simulation in comsol multiphysics 4.1 and i am just a beginner in this work,i have to build an electrode geometry and apply various frequency and voltage ac signals and see...
View ArticleDielectrophoresis simulations or gradient of electric field
Hi, I am doing dielectrophoresis simulations using simulations. Basically I use AC/DC module -conductive medium DC to get the electric field distribution. But I face some problems geting gradient of...
View ArticleAC current induced oscillations of electrothermal actuator driven by the...
Hello everybody, I'm trying to simulate a resonance mode oscillations of bimorph electrothermal actuator driven by Joule heating through AC current. So far I've been trying to realize it through...
View ArticleSimulation error
Hi , I am getting this type of error whey i am trying to start simulation. "Variables property does not include all variables in Xmesh" Could anybody can give me any solution/ suggestion. Thank you...
View ArticleMagnetic field
Does anybody know how to write this expression on comsol ( ∇/B/^2 )? I meant expression that replace "the gradient of the magnetic field norm square". Thank you
View ArticleRotation
Hello, I am trying to allow the remanent flux density within a magneto-active elastomer (MAE) to rotate with the elastomer as a magnetic field is applied to the material. Within the ampere's law that...
View ArticleLaminar-Two-Phase-Flow - Filling of a Pot
Hi, I've done a lot of simulations with comsol 4.3 and they worked. My modell is a pot which is filled with water.I'm using the laminar two phase flow in 2D with the phases water and air. i have two...
View Articlecomsol's algorithm for determining number of domains
I am running COMSOL w/ Matlab for an optimization of a geometry and need to be able to know the number of domains formed by 4 curves. The problem is stated as: I need an algorithm to determine how many...
View Articleabout the steady and unsteady simulations
Dear Sir or Madam, I meet some problems about the simulations of fluid flow in channels. When you do some simulations related to fluid flow, how do you judge whether it is a steady issue or not? For...
View ArticleMerging 2 models
I have a Comsol Model of a Maxwell Coil and a model of Helmhotlz coil with defined geometries. Now I want to make a simulation in which I can place these 2 coils together and simulate their magnetic...
View Articlelaminar flow in a tube under oscillating force
hello everybody, Im modeling a pipe that with laminar flow inside and that is subjected to oscillating force. I want to see the fluid's influence on the pipe when vibration. This is a very simplified...
View ArticleExporting Comsol data to Matlab?
Hello everybody, I want to postprocess Comsol data in Matlab. Since Ascii files blow up in size and I get "out of memory error", I'm looking for some other way. I've no experience with Comsol-Matlab...
View Articlesimulation of solidification or crystallization using Phase-field method?
I didn't find examples in the model libraries that can be referd to. Does anyone can recommend some references to me to read about how to simulate solidification using the phase-field method in COMSOL?...
View ArticleUse contour plots as geometric entities
I saw in the release highlight video that in v4.3a that you can use contour plots as geometric entities. How do you do this?
View Article