Flow without a channel (outlet)
I am having trouble modeling a flow in which there is no defined outlet. For example, imagine 2 hair dryers perpendicular to each other blowing air to a plate. There is an inlet, hair dryer's nozzle,...
View ArticleHuge energy spread in a simple ion extraction system
Hello all, this is forum is really helpful and it has help to clarify several issues i encountered in my comsol learning, however now I have a question for which I haven't find a clear answer or...
View ArticleError using optimization module
I tried to simulate a forced convective heat transfer problem: water flow through a heat sink. When I did stationary study with initial values of optimization parameters, it ran well. But if I ran...
View ArticleNeed to apply forces in contact surface
I have been trying to use Multibody dynamics to apply forces in the contact surface like in case of machining, but since I am new to this software I am unable to do it. Can anyone please suggest me...
View ArticleKarman plate theory
Hello all, Does Comsol support von Karman plate theory? I am trying to solve a problem with large deflections. I read manual and it seems it only supports Kirchhoff-love plate theory. Thank you , Hossein
View ArticleTransport of diluted species
Hi, I want to simulate pulsatile flow in comsol, please imagine something like heart pulsation, we have high pressure and low pressure flow in inlet during one period. How Can I give this condition in...
View Article2d line integration (Circle to Sphere)
Hi everyone, I'm trying to solve a creeping flow problem in 2d, using circles. I have a sphere moving in fluid and I want to integrate the shear stress in the x direction, to obtain the drag on a...
View ArticleSolving coupled PDE's in COMSOL 5.2
Hi! Is there any way to solve coupled PDE's without using the Coefficient form PDE? I am not able to fit in my equations using that module. Also, How can i custom add boundary conditions(I am not able...
View ArticleTensigrity in polyhedron
Hello, I would like to apply a force on an icosahedron and investigate its deformation either with a beam model (bending allowed) or with a truss model (compression/tension only). I do not have any...
View ArticleHow can I add the "PAN" button to the Graphic window of comsol?
I am new and I expect I can add or customize buttons like in Solidworks or Inventor to the Graphics window. I could not find that in the manual. Thank you
View ArticleCOmsol - Matlab Variable linking.
Hi all, I am Looping simulations over matlab with different sets of values matlab calculates. I am looking for changing the variable values. I have found for Parameter as model.param.set() for changing...
View ArticleBuild a project from start to the end using vba
Hello, Q1: I was wondering if one could build a complete project in EXCEL VBA, without having to use the desktop. Q2: I understand how to save a project in VBA format. Is it possible to later edit the...
View ArticleI want to know whether my license is allowed to set up the comsol operated on...
I do not know whether my license is allowed to set up the comsol operated on a computer cluster
View ArticleTemperature time dependent first then fixed after reaching a threshold
Hi All, I'm using 5.2, I'm doing a transient simulation to model heat transfer in biological tissues. An electrode is injected into the tissue to supply current for heating. what I want to do is, let...
View ArticleDeformation drop water subjected to the electric field
Hello; I am doing some experiments and need to know if the COMSOL is capable of simulating the deformation of a drop of water when submetica to an electric field . Thanks for the help. Danilo Farnese
View ArticleHow to define for comsol to use only one cpu for the solution? Also using the...
When I run Comsol Sometimes I need it to work only with one CPU. Is there any option anywhere to do that or Comsol automatically decides on that? Also for some solutions, I noticed my CPU is at 87% and...
View ArticleWhat are the physical and virtual memory in comsol interpreted during the...
When I press solving to compute my model, I always see the numbers at the bottom right "physical memory" and "Virtual memory." What is the importance of these numbers? How do you interpret them? I have...
View ArticleCouple ring resonators
Dear All, I faced a problem with selecting the right structure for my simulation. My aim is to simulate coupled ring resonators. I have previously used the axisymmetric approach for simulating a single...
View ArticleFSI Module Boundary Conditions
Hi All, I'm using the FSI module (Fluid Structure Interaction) to simulate a sphere in a fluid. My problem is that I want to simulate an elastic sphere rotating in a viscous fluid. So, I've created my...
View ArticleHow to activate/deactivate the "equation view" in Comsol 5.2?
In some of my models I can see the equation view under each physics node but for some others, I can not see that. I use the same software. How can I hide or unhide this feature?
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