How to simulate an incident plane acoustic wave on a baffled plate in a fluid...
Hello,I am trying to simulate the response of a baffled circular plate to an incident acoustic field inside a fluid half-space. The circular plate is clamped on the edges and is loaded by fluid on one...
View ArticleLiveLink™ for MATLAB about Anisotropic
hello，everyone！ I want to ask how to set the Anisotropic materials by using MATLAB ,because I want to model a period structure ,every unit with different Anisotropic materials.
View ArticleError: Recoverable error in residual, but solver could not recover.
The below post is related to an archived discussionThis errors has something to do with the mesh size. I got this error when I was trying to refine the mesh near a singular point in my model. However,...
View ArticlePlease could anyone help me with this??
Failed to find consistent initial values. Undefined value found. NaN or Inf found when solving linear system using SOR. Last time step is not converged. - Feature: Time-Dependent Solver 1 (sol1/t1)
View ArticleHow to simulate the load of a displacement
I am simulating a RC beam, which I want to load a displacement of 4mm/s, I do not know how to implement this in Comsol. Should I use "prescribed displacement"? In addtion, I have met the error '...
View Articlemotion of two particle by dielectrophoresis force
hi. I want to simulate motion of two large particle that immersed in a fluid chamber. the particle move by dielectrophoresis forse. I use the fsi model of comsol. but the simulation diverged very soon....
View Articleturbulence flow
when i simulate a turbulence flow, i see the velocity on walls is not zero. anyone know about this??
View Articlea very simple test, however, gave unexpected result
Hi,I set up a simple test case to understand COMSOL and FE simulation, however, could not understand the result.2D, linear elastic material in solid mechanics interface, stationary study step. a block...
View ArticleVibro acoustic mehod for a water pump
Hi Could someone tell me if Comsol is able to analyze noise produced by a water pump? If yes, is there any example to be shared with me?Tx in advanceP. SOUBIRAN
View ArticleFailed to save model. The file 'aa.mph' is locked by another program.
After the call from Matlab, we failed to save the model, and the Eerror Message is :"Failed to save model. The file 'aa.mph' is locked by another program." Using "clear all""clc" in Matlab is...
View ArticleRay power calculation in a section of tapered fiber
HiI have an optical fiber simulation running on Comsol 5.1. I have a fiber with a tapered end and am using the Ray Optics module with rays tracing showing rays propagating along the fiber. I would like...
View ArticleFloquet boundary conditions in thermoacoustics
I'm trying to build a finite element model for an acoustic metamaterial, where losses play an important role. However, I'm having some trouble when combining the thermoacoustics physics with Floquet...
View ArticleHow to simulate hologram in COMSOL to interact with particles
Hi all, I want to construct a hologram and want to use it to interact with Au particles， Is it possible in comsol multiphysics? Can anyone suggest me which module should i use? and how would it be...
View ArticleError message: Failed to find a new solution
Hi, I am new to comsol.I have created a geometry which has glass fibre block on which there is a platinum strip to study the Joule heating due to current flow through platinum strip. On computing it...
View ArticleImporting the MATLAB , FORTRAN or other language script
Can it be possible to import FORTRAN script in initial values? Instead of sine wave as initial condition we want to use random initial wave condition. The random wave initial condition is in FORTRAN...
View ArticleAccessing Uplus and Yplus values and also determining Wall shear stress value...
Hello all,I am trying to solve a turbulent channel flow with Re of order 10000. I am using a SST model.I am trying to plot uplus and yplus values and finally find wall shear stress values to verify my...
View ArticleBad termination error; cluster compute
I'm running a comsol model on a cluster using the syntax:comsol -clustersimple -nn 5 -f hostfile batch -inputfile <filename.mph> -study std1 -outputfile <ofilename.mph>This runs if the...
View ArticleTransfer a diffusion flux in a solid electrode to an porous electrode
Hello all together,I have a Problem, which maybe have been discussed several times in a way here, but not for this special case. I am simulating a 3D model of an anode in a battery. The 3D model...
View ArticleCOMSOL Conference Boston: Early bird savings deadline this Friday (September...
Hello,This year’s COMSOL Conference is shaping up to be our finest one yet. The conference, running October 3-5, will feature over 40 technical minicourses and workshops; demo stations and social...
View ArticlePlasticity in Multibody Dynamics
Hello,I want to implement a rotating ring and a cube, that gets in contact with the ring and adds friction. This should happen with plastic deformation. So far I understand that one cannot combine...
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