Welded contact pair
Hello,I am new to Comsol. Before Comsol, I was using midas NFX.Contacts in NFX support welded, general, rough, etc. The welded type does not allow separation in vertical and horizontal direction. Shall...
View ArticleEffective Constant Interaction Length of PCF structure
I am working on PCF structures using COMSOL Multiphysics version 5.00 for simulation. I want to computing figure of merit of PCF. For this purpose, I need Effective Constant Interaction Length (Leff)...
View Articleflip the sign of a variable
I am running a time dependent simulation and I want to change the sign of a variable when a certain event occurs. I have defined a variable called u and I need to be able to make the statement u=-u. I...
View ArticleDetermination of Fiber Length
Hello! How can I determine the fiber length(L) of my designed PCF structure in COMSOL 5.00?
View ArticleMöchten Sie Gparted Terminal öffnen
Ich muss das Terminal auf gparted Terminal öffnen, kann jedoch keine Route von meinem Ubuntu 13.04 finden. Wenn ich sudo gparted und auf meinem Shell-Terminal starte, wird die GUI geöffnet und ich kann...
View ArticleRadial and Hoop Stress
The below post is related to an archived discussionHello:In reference to one of the earlier discussions, I used solid.srr to plot radial stress around a cylindrical hole (in a cubical block)....
View ArticleCreating a model for non-newtonian fluids.
Hi, rigth now i'm simulating a blood flow as a non newtonian fluid, i already know that comsol has the option to model it by "Non-newtonian power laaw" or " Carreau model"; nevertheless i want to...
View ArticleHow to delete the intersection point of two circles?
Hi, I am having some problems deleting the intersection points of two circle. Small circle is inside the large circle. However, they have intersection points. I wanna keep two circles but don't want...
View Articlesimluation of metamaterial in solar cells using comsol
Hi there:May I know if you have resources about simulation of sollar cells using metamaterial? If you have an idea please give steps on how to build my model for simulation. Even the basic or big idea...
View ArticleFluid with moving mesh
Hi Everyone,I am working on a model in which i want to simulate a full closed cycle (no inlet and no outlet) with a piston resulting in an oscillatory motion by pushing the fluid in the cylinder to...
View ArticleTemperature Distribution in a Pipe due to fluid flow
Hi, I am a complete beginner in this software. I have a thick pipe which is insulated from the outside and is used to tranfer air at a high temperature and a high Reynold number. I want to simulate a...
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Strange Temperature Profile simulating laser heating
I am simulating the laser heating of a structure using the formulato take into account the Reflection at the surface, the absorption of each material and a flat-top intensity distribution given by The...
View ArticleTurning Parameters on and off
Hi,I'm trying to simulate the operation of a cryostat. I'd first like to do a stationary study to simulate cooling the cryostat to base temperature, and then do a time dependent study with heating...
View ArticleModeling
I am a beginner in using COMSOL 5.0. During my first practice, I discovered the file, "v_flow_battery_membrane_variables.txt" is missing when I wanted to define the variables for membrane. Picture...
View ArticleElectric Field Distribution in COMSOL
I am trying to simulate a problem in COMSOL, whereby I have to study the difference in electric field distribution using different liquids as dielectrics. I have constructed a 2-D geometry with a point...
View ArticleDetermine the actual link length of the fiber
Hello! I am working with PCF structures. How can I determine the actual link length of the fiber (the length between two ends of the fiber) ?Thanks in advance.Tazkia
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Why can't I find the example of circulating fluidized bed mentioned in this...
Why can't I find the mentioned in this blog?
View ArticleHow to Calculate Surface Current Density on Conductor
Dear All.I am a newcomer to Comsol. I am currently working on research related to conductor surface gradients and surface current density on AC conductors using AC/DC module, electric current physics...
View Articlethe problem about calculating the two different frequency domain
hi In my research, the pressure acoustic field and magnetic field have been coupled with the fluid field. The pressure acoustic field and magnetic field are computed in the frequency domain. The...
View ArticleTransient study in 'flat_heat_pipe'
I have known about the simulation of flat heat pipes. We all know that heat pipes have the characteristics of fast uniform temperature. The steady-state results of this case also prove that the uniform...
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