How to couple my MATLAB solver to the comol's Segreated-step solver
Suppose I have a multiphysics coupling model, heat transfer and electrical field. It is a time-dependent problem. At each time step, I suppose to use the segreated scheme to deal with the coupling...
View ArticleElectromechanics simulation
HiI am working on electromechanical simulation of fixed-fixed beam. Shall I use same moving mesh method as per application available for electrostatically actuated cantilever to fixed-fixed beam?In...
View ArticleRayleigh-Plesset simulation
Hi all,I am in the process of modelling some microbubble-microchannel acoustic behaviour.During this process, I am trying to check (before going into massive files) that the gas (air) bubble follows...
View ArticleCOMSOL with Matlab: How to plot while solving??
Dear all:I am going to use the COMSOL with Matlab and want to see the simulated result while solving. The COMSOL installation manual gives the approach like this:"To display the plot in a COMSOL...
View ArticleProblems in Velocity profile (Laminar flow).
Hello everyone, I'm working on fluid dynamical model with considering Laminar flow and Heat transfer in fluid model physics. While setting the initial velocity = 0 [m/s] and initial pressure = 0 [atm]...
View ArticleFile access using Java API in batch mode
Hi,I am currently experimenting with Java API for using COMSOL. I have discovered that I have a problem with external files when using comsolbatch.The following code (see bottom of post) is for a...
View ArticleAcoustics in a Piezo Transducer
Hi,I am new to COMSOL Multiphysics and I have the following problem:I am trying to model a set of layered resonators where a piezoceramic transducer drives a matching, fluid and reflection layer. When...
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 ArticleMeta-Surface Design based on Existing Paper
Hello,I am new to Comsol and simply trying to recreate the meta-lens design outlined in the linked paper, COMSOL Multiphysics Software as a Metasurface Design Tool for Plasmonic Based Flat Lenses....
View Articleheart model
Dear Experts!I am a biomedical engineer student and beginner at using comsol. For my senior design project I will make whole heart model with blood flow, but i don't found examples and steps in...
View ArticleStreamer Propagation in Nanofluids
Hi,I am currently working on the use of nanofluids as transformer oil in place of mineral oil. I am trying to simulate the IEC 60156 test to see the breakdown phenomenon of a liquid and the streamer...
View Articlehow to use The Conjugate Heat Transfer, Laminar Flow multiphysics interface...
hello I want to do the semulation of a PVT solar collector if there is an exemple please give one
View ArticleModel corrugated plate as an equivalent orthotropic one
I have a problem that includes a corrugated plate. In order to reduce the degrees of freedom of the problem, the corrugated plate can be modelled as a normal one with an orthotropic material. Then...
View ArticleSliding wall with Euler-Euler model
Hi.Does anybody know how to create slinding wall boundary condition when using the Euler-Euler two-phase Model? It seems that in this model, wall cannot be a sliding wall.Thank you.Mehrdad
View ArticleProblem with LiveLink for Matlab mphstate
I´m currently working into LiveLink for Matlab and COMSOL and encountered a problem when trying to extract the system matrices (for model reduction) when applying the "mphstate" command. On the one...
View Articlebattery cycling
I competely copy the Capacity Fade 1d model in the case base except the dimension is 3D, but it reports error: error:No consistent initial value found The last time step does not convergeAnd one sub...
View ArticleReduce flow rate when specified max pressure reached at inlet
Dear All,I would like to have reductions of flow rate whenever specified max pressure reached over time. At inlet boundary, the flow rate starts with 0.25 [gal/min]. Afterwards, the inlet pressure...
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Capillary Filling — Phase Field Method
I have a question regarding the Capillary Filling – Phase Field Method (https://www.comsol.com/model/capillary-filling-8212-phase-field-method-1878).I noticed that when I plot the variable psi...
View ArticleSimulation of a resin transfer moulding
Hello everyone! I need to simulate a resin transfer moulding on comsol. Basically I have rectangular fiber (maybe we modeled it as porous) Then 1 inlet with epoxy and outlet. I want to know how long...
View Article3D Coil-Symmetry simulation
Hallo, i want to simulate rectangles multi-coil with symmetry. But my simulation is always failed. My study steps are, coil analytic and frequency domain. You can find my modell in attachment. I thins...
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