cyclic voltammetry study
how to do cyclic voltammetry study for a 3D model? the result is not coming for a 3D model. what are the inputs that has to be given for a 3D model when compared to 1D?
View Articlebiosensors
how to add a biological material like glucose, dopamine, cholesterol for sensor applications??
View ArticleErrors when compliming equations. Wall heat transfer wall heat transfer must...
Hello, I am now study to use the Pipe Flow Modulue in Comsol to simulate the cooling effects of pipe. I followed on good example from Comsol library but confronted a Error when I want to set the at the...
View ArticleMeshing Error
Good day, I am working on a flux density simulation, and at the meshing stage this error came up" Failed to create swept mesh for domain. - Domain: 5 Domain must be bounded by one connected face...
View ArticleSimulating displacement with variable magnetic force
Hi I am modelling the mechanical behaviour of a magnetically steerable catheter. I should be able to implement a variable force, which varies according to orientation and position of the permanent...
View ArticleElectric current and Electric circuit
I am comparatively new at COMSOL. I am trying to simulate two part of my problem. 1) Two electrode for current carrying 2) Other each of four electrode attached with external resistor. Two of them will...
View ArticleFatigue module message "Stress cycle defined by stress amplitude "
Hi, I'm using the fatigue module to evaluate the results from a solid mechanics object. However, I get the following warning message: "Stress cycle defined by stress amplitude 285686239.1227691...
View ArticleCan COMSOL input a temperature profile?
Hi, My team and I are fire engineers who are interested in purchasing COMSOL . We are analysing how structures (such as buildings) deform/undergo stress in a fire. We were wondering whether COMSOL can...
View Articlepressure input
heloo, i want to know how to give pressure input in harmonic form or sinusoidal form in acoustic module?
View Articleconvert imported *.stl into solid
I am importing a rather complex geometry into COMSOL from Solid Works. After some tinkering with the import controls, I managed to import the object but I do not think COMSOL recognizes it as a solid....
View ArticleImplementing a two-temperature-model (electronic/lattice) for fast...
Hello, I want to model a pulsed laser that hits a solid, excites electrons which "thermalize" then transferring their energy to the lattice (solid, atoms). I think most people do not use COMSOL for...
View ArticleElectric circuit Node naming
Hi I do not understand the concept of node naming in Electric circuit. I know that we need External I vs U and External U vs I to connect the external circuit but the node naming is very confusing. If...
View ArticleYoung's Modulus of Multilayer Cantilever
Hey! I am working on a multi stack cantilever. Any body tell me how can I calculate Young's Modulus of Multilayer cantilever? I am using 5 layers i.e. Si, SiO2,Al,ZnO,Al. Please Help.
View Articleturbulent combustion modelling results
I am trying to validate the procedure for modelling turbulent combustion in COMSOL by using the results from available literature. My results are not matching literature results. No temperature rise is...
View ArticleHow to model a deformable valve in Comsol
Hello to everybody, for my master thesis I am trying to create a CFD model that simulates the emptying of a bottle, containing a power-law, shear thinning fluid. The physics I have used is laminar two...
View ArticleLumped ports - how to use with real conductors
Hi all, rather a novice I'm afraid and trying to simulate a simple split ring resonator . thats a metal ring with a cut that makes it look like a letter "C" I would like to excite this by imposing a...
View ArticleNow available: COMSOL 5.3 Update 3
Hello, I'm pleased to announce that COMSOL 5.3 update 3 is now available. The easiest way to install the update for COMSOL Multiphysics® is to start the program and then select Check for Product...
View ArticleNitrogen dissolve into water
Hello I am trying to model how nitrogen is dissolved into water. I have a Nitrogen supply that is impinged into a water reservoir. I like to see how nitrogen is dissolved and diffused in liquid water....
View Article[pipeline elastic wave propagation & impact] just 1 cycle sine wave source
Hello. Comsol user I'm making one model. It is a buried water filled pipe [acoustic solid interation,transient module] and i want using monopole point source just 1cycle sin wave how? i want know that...
View ArticleImport a matrix from mpheval operator.
Hi, I'd like to ask a question! I got the matrix (V=mpheval(model,'V')) using the Livelink. and I modified value of some points in V matrix. But when I import to COMSOL, It didn't be reflected. If you...
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