2D Beam Study -- Involving a moment at a point.
I need help with representing a 1000 N*m bending moment at the end of beam.
View ArticleWellbore
How wellbore is drilling at the same speed in comsol？I addopted the parametric sweep to research the drilling, but the results of the parametric sweep are independent of the drilling time. If you give...
View ArticleCAP FACES error - "Operation not supported on virtual geometry"
I am trying use an imported STL file of blood vessels to perform some fluid dynamics simulation. To close off the ends to create the fluid domain inside the vessels, I think the best way is to use the...
View ArticleThe domains of overriden in comsol
While I define the materials of domains, I selected the magnet domains and air domains. I look through material>>air, the air domain was covered the magnets. Is it associated with the CAD file...
View ArticleProblem:Loop variable correlation was detected
Hello!I am a beginner,and I meet a problem:Loop variable correlation was detected.So how to solve it,please................. help me the problem like this: Loop variable correlation was detected. -...
View ArticleExternally vibrating Channel
Hi; I am a new user of COMSOL and I need a little help. I want to create a vibrating microchannel but I couldn't figure out how to give external vibration to whole channel. Moreover, I want to examine...
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Modelling a chemical reaction reactor
Does anyone know why the results are Wavy lines? I think the correct results should be Smooth curve.
View ArticleHow to apply temperature continuity condition between the wall of a reactor...
Hi ,does anyone can help me? I want to konw how to apply temperature continuity condition between the wall of a reactor and the Heat Transfer Fluid? I am currently try to simulate a reactor , heat...
View ArticleTotal reflection in a 2D double bent waveguide
Hi, I'm trying to simulate total light reflection in a SU-8 waveguide (refractive index 1.6, exterior domain: air) structured by a first straight section split into two symmetrical S-shaped bends...
View ArticleHow to extract displacement distribution line profiles from plots of resonant...
I am using the acoustic module to simulate vibration modes of a cylindrical rod. Now I would like to draw a line parallel to the cylinder axis to indicate displacement distribution on the surface when...
View ArticleDifferential (multielement) lumped ports in RF module
Hello,I am using the differential (multielement Lumped ports) ports of the RF module to run an S-parameter analysis on a couple of differentiaol traces on a PCB.Under Settings the reference...
View ArticleFix the 4 corners of a beam to use shape optimization
Hello,I need to fix the 4 cornes of a beam and optimize just de top and bottom edges. Can someone help me?!!Thankss!
View ArticleDivision by zero error
Hello. I try to model He-Ne plasma. And during the calculation I received the following error:Division by zero. - Function: / Failed to evaluate temporary symbolic derivative variable. - Variable:...
View ArticlePiezoelectric Coupled With A Shunt Circuit For Vibration Damping
Hi, I have been using comsol to study topics related to piezoelectric materials. I'm modelling a beam with a piezo attached on the top, and an electrical circuit attached to the patch: to do so I used...
View ArticlePhase of S-Parameters
What exactly are the S-Parameters in Comsol? In my opinion, the S-Parameters (S11, S21, etc.) are normally defined as S11=reflected field over incident field and S21=transmitted field over incident...
View ArticleCalorimeter Method
Hello everyone, I'm in need of some help with my project task regarding the calorimeter method where I have to create some sort of example in COMSOL program before creating one piece by piece. If you...
View ArticlePhase Change - liquid to vapor
Hi,I am interested in studying to model the phase change of liquid water to vapor by heating the downside of a cup (in 2D), like it is shown in the attachment.To model this, I selected two materials:...
View ArticleFlattened Lens based on quasi-conformal mapping
I want to obtain the 2D flattened lens similar to the following link. I applied the boundary conditions, but the obtained meshes are not orthogonal. Is there someone know about it?...
View Articlefluid simulation post processing
I would like to ask a simple waterway model, such as in the picture, how to get along the pipeline, a one-dimensional curve of pressure and velocity changes from the inlet to the outlet, or the average...
View ArticleThermal Analysis of an actuator
To whom it may concern, I am trying to model and analysis EC 90 Maxonmotor actuator, I am modeling the actuator based on the CAD file and datasheet. For heat transfer part, I am making the winding as a...
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