Marangoni effect
I am trying to simulate the movement of an air bubble submerged in liquid due to thermocapillary effect in microgravity condition. I am now considering moving mesh, laminar flow, heat transfer in...
View Articlecomsol error
hi in solid mechanics module i have a problem with this error . Failed to find a solution. Maximum number of Newton iterations reached. There was an error message from the linear solver. The relative...
View ArticleHow to simulate crystal birefringence
I want to simulate crystal birefringence,but I dont know how to define the optical axis of the crystal and its intrinsic polarization direction. I use Ray Optics module to simulate Birefringence , but...
View ArticleBlank page in report
I am missing the report in my comsol 5.4 for thermoelectric effect. I got the solutions for the study too but coudn't get the report. Any help would be appreciated.
View ArticleCapacitive proximity sensor
hi i am trying to simulate a capacitive proximity sensor. the working principle is explained in the youtube link https://www.youtube.com/watch?v=jco-uU5ZgEU and...
View ArticleHow to add Composite material module into Comsol 5.4
Hi,I am using COMSOL 5.4 in a computer in my Institute. But I could not see any composite material module in that. How can get the Composite material module?
View ArticleContact modelling in Layered Shell interface
Hi,I have to model contact and friction between the delaminated layers of a layered composite. For delamination modelling, thin Elastic layer is the best option. But, can I use contact pairs and TEL...
View ArticleAcoustic emission from oscillation of electrohydrodynamic flow (ionic wind)
Dear all,I would like to ask you for help in modeling surface corona discharge. In more detail, I need to examine the acoustic emission from this type of discharges, created due to ionic wind between...
View ArticleWater balance of an unsaturated soil slope
Hi Dear all,I'm a beginner in using comsol. I have a question on how to use COMSOL to calculate the water balance of an unsaturated soil. I not sure which equations or boundary condition I need to...
View ArticleSpace And Time Dependent Boundary Condition conditional?
Hello everyone, I am working to solve a conjugate heat transfer problem. The model consider a porous pipe flow with heat source, the velocity of the fluid has a sinusoidal profile (u(t)=u0sin(2pift))...
View ArticleInitial values not taken into account ?
Hi all,I hope everything's well for you ! I am fairly new to COMSOL and I am performing a CFD simulation with laminar flow and biphasic flow with level set method. As I am studying the filling of my...
View ArticleQuestion about weak PDE physics interface
Hi everyone: I am wondering whether the weak PDE physics interface has to solve the dependent variable that I defined in this interface? For example, I defined p as dependent variable but the equation...
View ArticleSurface wave (water) propagation
The below post is related to an archived discussion[start here]Hi is there any COMSOL exapmles available on water wave propagation in a domain? I am quite new to COMSOl. The therotical model could...
View ArticleExtract data comsol with matlab
Hello,I use COMSOL with Matlab livelink for running EWFD simulations. I simulate 2 modes for each frequency of a large sweep. I want to extract the data for each mode from matlab but I can only have...
View ArticlePhysics toolbar, Domains, Coil
Hi,I am trying to model a loudspeaker driver, according to a tuturiol https://www.comsol.com/model/loudspeaker-driver-1369 And at page 20 I need to choose 'Coil' in the 'Physics' toolbar in the...
View ArticleFillet for three line vertex
Is there anyway to create a fillet for a corner that connects three lines in COMSOL Multiphysics 5.3a for a 2D model?
View ArticleMeasuring out-of-plane displacement in plane stress
Hello everyone,I am modelling some contact considering a 2D plane stress situation. I would like to know how to measure the quantity of material which moves out of the XY plane. The variable comp1.w...
View ArticleMultiple studies on 1 graph
I am using Comsol to model a grounding electrode. I want to alter the length, and other factors but then to plot all of the results on same 1D graph. I have absolutely no idea how to do this so any...
View ArticleHeaviside function for heating and cooling phase
Hi I am simulating laser material removal process. I have used heaviside function to differentiate the two phases (solid and evaporation). My analytic function is flc2hs(T-Tsol,Tevp-Tsol). According to...
View ArticleTHz absorber using Graphene-simulation
Hey everyone,I am new with COMSOL, and I wanted to simulate and recreate a published reference for which the link address is given below. I tried to create the geometry, but it seems really hard to...
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