How to solve PDE with dependent variable?
Hi, all,I am trying to solve two PDEs regarding phase field.The common PDEs include one equation related to phi and another related to chemical composition (c). Here, I non-dimensionlized the...
View ArticleThe value of Electrolyte conductivity
Hello, I'm begginer for comsol, and i'm working on fuel cell modeling. I started with the example PEM GDL 2D. From the parameters table , I found the electrolytic condutivity of membrane = 9 s/m, i'm...
View ArticleStokes-Darcy Coupling
Hello everyone,Working on Stokes-Darcy coupling of a simple 2D geometry; two rectanglar domains where the liquid flows first in the Stokes domain then penetrates into Darcy’s through the interface.The...
View ArticleI want a domain not to override in the free at the Solid Mechanics
I have a immersed beam and want to find the natural frequency. However, for the solid beam the domain is overridden at the Free in Solid Mechanics. Therefore, It does not give me the results I want.And...
View ArticleImplementing the boundary equations in Stokes-Darcy Interface
Hi everyone, Working on Stokes-Darcy coupling of two simple rectanglar 2D domains, the fluid flows in the Stokes domain first then penetrates into Darcy's, there are three simple equations that must be...
View ArticleParticle photon(using DAC converter connected with 2 Wire Speaker) + play...
Hey I have two Wire speaker which I wanted to interface with Particle photon using DAC, I wanted to play audio files through smart phone wireless and listen to the output through 2 wire speaker...
View ArticleRetrieving Boundary Topology in Simulation Applications
Hello Everyone,I am currently trying to create an application which gives users access to the custom physics interface\study steps I have created. However, the geometries I want the user to be able to...
View ArticleChloride Ingress in a Virtual Concrete Microstructure
Concrete is a heterogenous microstruture comprising of various phases such as cement phase, aggregate phase and ITZ. I have a stack of 2D images of a computationally generated 3D concrete...
View ArticleQuenching Simulation
Hello, Can someone help me with the "Heat Transfer in an Oil Quench Simulation" in https://www.comsol.de/video/heat-transfer-oil-quench-simulation. I'd like to know what are the required PDE equations...
View ArticleCoupling mixture model and phase field
Hi,We are trying to couple mixture model and Laminar two phase flow, phase field method. But the initial values which I give in both the models doesn't match and the solutions doesn't progress.As an...
View ArticleImporting STL files
Hi,I'd like to import an stl file into a COMSOL simulation, and the online tutorial says that COMSOL supports this file type. However, when I try to use the import function on the Geometry toolbar, the...
View ArticleYellow Text
Hello!Could someone plz tell me why the text becomes yellow when I write a volume force in laminar flow module of comsol 4.3b?
View ArticlePrevent server from closing upon disconnect in java API
I am building a program in java that runs a COMSOL model in server mode. This program is executed multiple times by another external program and java needs to terminate each time. As such, I need to...
View ArticlePlot model geometry created using COMSOL with MATLAB in every iteration
I am trying to simulate a model using MATLAB COMSOL interface. MATLAB 2016a and COMSOL 5.0.. I am varying few boundary of the model and tring to plot the geometry in each loop. I tried to use mphgeom()...
View ArticleIs there any way for my software client to access an App on a COMSOL server？
Besides embedding a COMSOL Server App web page into my software, is there any other way to use COMSOL Server App from another software? Is there any http interfaces?Fot example, a customized App has...
View Articlethe interface of magnetostrictive
the interface of magnetostrictive is defaultly mf module,could I replace it with mfnc module by changing the variable in it? because the mf module is too difficult to convergence. besides,could you...
View ArticleStructural Mechanics（ Beam）
Once the Beam Interface were inserted into a comsol model, I couldn't remove it again . If I do that ,two problems would occur. 1) I cannot save the model . when I try to save it , a error box popup in...
View ArticleOn Simulation of EHD Printing
HI, Question is that :- I want to perform a simulation of EHD printing but do not know how to define the forces namely Fx and Fy. Please suggest me how to deal with it? Also I want to apply a biased...
View ArticleParameters in COMSOL with MATLAB
Dear All, I used several parameters in COMSOL while creating a geometry. I imported this geometry into COMSOL with MATLAB. I need to use these parameters (initially created in COMSOL) in a loop at...
View ArticleWeak constraints on air liquid interface
I need you sincere comments and suggissions on the attached mph file. Actually, I am simulating the bubble motion in fluid flow using comsol. I am almost sure that my model is okay, but the problem is...
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