3 point bending - COMSOL vs. ANSYS - large error in COMSOL?
Hello, I am doing a „3 point bending“ experiment, where I measure various deflections for a range of applied forces from 1-18N. For example: at 9N the deflection is 2.4 mm I also simulated the...
View Articlescaling in contact analysis
Hello, What is the function of scaling in mechanical contact analysis (it is located under study>solver configurations>dependent variables)? Does it have any effect on the solution? If it is,...
View ArticleIs phasor used for Electromagnetic waves, transient of RF module?
After completing a simulation, I tried plot imag(temw.Ex) and actually got somthing. It seems that even in a transient analysis, the EM waves are still complex, not real. But actually the concept of...
View Articlenot able to create animation
Hello, I'm using COMSOL3.5a for modeling of ultrasonic wave propagation with structural mechanics plain strain module. After finishing the post processing, i have tried to create an animation movie...
View Articlemodify equation system during the simulation
Hello, I started using COMSOL 4.3a only recently and I'm experiencing some troubles with my model. My simulation is somehow analogous to the boiling water process, so I'd like to ask how you would...
View ArticleMean Inlet Velocity in Fluid Structure Interaction Model
Hi, I was going through the PDF of the Fluid Structure Interaction Model under the MEMS catalogue of COMSOL. Among instructions there, it was given that the formula of the mean inlet velocity be given...
View ArticleSoft Source for SAW resonator
Im doing a SAW resonator, and Im interested in seeing the wave response thanks to a voltage excitation but also seeing the voltage response thanks to a reflected surface wave. I manage to generate the...
View ArticleHow to create a Gaussin beam in time-harmonic mode
Hi, COMSOL players, I am now working on COMSOL RF module to create a Gaussian beam. In the tutorial model "Second harmonic generation of a Gaussian beam", we learned how to create a Gaussian beam in...
View ArticleSensitivity of Piezo resonator
Hello Everyone, How to obtain sensitivity (output Voltage/ input acceleration)of Piezoelectric resonators? Please help me with this. -Sankha
View Articlecone-jet mode in electrostatic field
Hi, Here is my problem. I want to simulate a electrohydrodynamic (EHD) phenomenone , a nozzle with full water (or electrolyte) in a electrostatic field, the the water is polarized and deformed the...
View ArticleError-Automatic remeshing
Hi, I encountered a problem about "Automatic remeshing" with "deformed geomerty" and Time-Dependent Solver When I ran the program, Comsol always displayed a Error: Unsupported operation on this type of...
View ArticlePML Coordinate Stretching
When I see the equation mode, PML in one of the direction (mapped coordinate e.g. y direction) is stretched to complex number but another remains only real for my 2D analysis, why is that? Also does...
View ArticleCantilever Strain at Resonance Frequencies
Hello, I am new to Comsol and am trying to simulate strain in various structures at their eigenfrequencies. I have no problem finding the eigenfrequencies, but the amplitude in the eigenfrequency study...
View ArticleProblem while changing the study steps of a time dependent model
Hi I just faced a strange problem with COMSOL, I have a time dependent model which runs perfectly fine from t=0 to t=1e-6[s]. In this model I divide the interval into 20 steps for getting results:...
View ArticleNormal stress
Hi: I developed a coupled fluid geomechanical model. my question is how can I get normal stress out put? Thank you,
View ArticleASK: easy functions in COMSOL4.3
Hi there, I am now trying to model a moving laser beam (as heat flux) on a steel plate. I try to do this by following steps: 1. build a solid block (domain 1) to represent the steel plate. 2. set 'heat...
View Articlehow to define three different particles?
Hi all, Am simulating a micro-sorter to sort the blood cells. I have used Particle Tracing for Fluid Flow to define my cell. I wanted to define three sizes of cells, so as to analyse how they flow and...
View Articletrials
sir, i jeevan naik from india, presently i working in national aerospace lab. i want trial version comsol soft... plz send me details of downloading materials.
View ArticleMovement of laser in a rectangular shape
Hi, I am facing difficulty to move laser in a rectangular shape ,in straight line circle I have moved laser so please suggest me a way how can I get that movement. -- dharmesh
View Articleadding a electrical circuit to a coil
How can I add an electrical circuit with a coil? I have two coils and I am trying to find out the power transmission from the sending coil to the receiving coil.Please tell me how can I connect...
View Article