Thermal Stress and Heat transfer in an Assembly. Contact boundaries don't...
Dear All,I wonder wether or not someone can help me with a simple problem. At least that is what I assume.I am working on thermal stress in a cooled mold and wonder about the heat transfer when the...
View ArticleHow can I plot elastic deformation versus time in multibody dynamics module?
Now I use comsol's multibody dynamics module to analyze a rotate beam. The beam is flexible and hinged at left end and rotate with respect to the left end point . As the beam is flexible, the elastic...
View ArticleParameter Optimization at Stationary Study against exp. Data / lin. Function
Hi all,I wanna optimize a geometrical parameter and a parameter as factor for a material property to fit my 3d FEM model (displacement on an edge) against real life measured data (inverse methode)...
View ArticleHinge model
Hi all,I've modelled a hinge with structural mechanics module via a rigid connector. Can anyone tell me how I can move (rotate) the connected solid object along the axis of the pin hole?? I've attached...
View ArticleEvaporation of a sessile water droplet on a heated substrate
Hi All,I am a relatively new user to COMSOL and am trying to model evaporation of a water droplet on a heated substrate. For my model geometry, I have defined three domains- Droplet, Air and Substrate....
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Boundary Condition with Identity Pair
I am working on a problem in the PDE Equation Modeler. In my geometry, I have an identity pair for which I would like to impose a custom boundary condition. Is there a way to do this in Comsol. I have...
View ArticleHow to model piercing in COMSOL
Hi guys!I'm currently working on simulating Neural Probe insertion into the brain, and I'm currently having some issues having the probe be fully inserted into the brain. When running the simulation,...
View ArticleModeling of PV module in comsol
Hello, I am new in Comsol. I want to simulate the Photovoltaic module electric power and thermal model in comsol. Which physics should I use ? I know heat transfer is suitable for thermal modeling but...
View ArticleDoes hydrostatic pressure affect diffusion in the model?
COMSOL version 5.4 can calculate the diffusion-induced stress of particles. Does hydrostatic pressure take into account in the model? Because chemical potential is the driving force of diffusion, is...
View ArticleSymmetric Sum Notation
Hi all,I want to excuite the Symmetric Sum Notation in comsol , please help me out to implement this function (appended in the below) in comsol.thanks Kiran
View ArticleConvergence plot
The below post is related to an archived discussion[start here]Hi Can anyone explain how to plot error vs iteration plot for my time-dependant solver. I've been struggling to plot the convergance but...
View ArticleAdapting meshing
Can I do adapting meshing in two phase problem (using phase field) regards Somnath
View ArticleNon-zero stress and strain values for zero displacement with no preloading
Hi, I am trying to validate a compression test of hyperelastic material silicone. So I have taken a single cubical element of 1mm dimension and I have applied a prescribed displacement upto 0.5mm in...
View ArticleValidity of Fick's Law of Diffusion
I am working on the diffusion induced stress and deformation. The deformation is large of the order 300%. I recently read that for large deformation, Fick's second law is not valid in the spatial...
View ArticleS parameter analysis for optics
Hi, I am trying to figure out the S-matrix for an optical ring resonator. Can I use COMSOL for this?
View ArticlePlot Number of Mesh Elements versus Parametric Sweep
I use a parametric sweep to define increases in size of the geometry. How can I plot the total number of mesh elements over the parametric sweep?I.e., I have a square domain that doubles in size a few...
View ArticleLiquid medium surrounding BAW resonator
I’m trying to model viscous damping effects on an in-plane BAW resonator immersed in a liquid. How do I set up my resonator as a body in an infinite stationary liquid medium (only flows in the liquid...
View Articleelectrokinetic flow in nano channel
I made a nano channel where I took electrostatics, transport of diluted species. i took K+ and Cl- as ions to move by controling potential. how can i get the ionic current vs potential graph.
View ArticleAngled Waveguide 2D
Dear AllI have problem in Geometry. I am trying to Draw an angled waveguide with 60 degrees bend. Help will be appreciatedThanks in Advance
View Articlemodeling heat transfer in LiNb at 10**-2 K and with a heat source, power of...
Hi,I am traying to model heat transfer in a lithium noibate resonator at E-2 K tempreture. So I defined heat conductivity k=4T3 and heat capacity 0.000234T3 at E -2 K with a heating source which has a...
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