phased array transducer in frequency domain
Hello I am trying to do a ring piezo transducer phased array simulation. it has 8 rings. i successfully have done the design. I am doing a harmonic analysis. I am facing problem with one thing. For the...
View ArticleAcoustic Module: Plane wave radiation and sound soft boundary
I would be thankful if you answer the following queries regarding acoustic module. 1. For a time dependent analysis in acoustic module, there is a boundary condition “Plane wave radiation” under...
View Articleboundary condition
hi i am new to comsol in acoustic module i want to creat a medium with infinit boundary (like open space) filled with some material and then stimulus from any one boundary how i can do this
View ArticleExporting Complex Pressure (Acoustics Module)
Hello, I'm new to COMSOL (version 4.3), and I'm having some issues exporting the phase of the pressure from my model. I'm using a simple 2D box in the frequency domain and using a pressure node on an...
View Articlehow to create geometry with infinite dimension
I am new to comsol and start learning it. i want to design an environment filled with water (like pond). suggest me how to design it.
View ArticleOut of memory during LU factorization.
hi i am using extra fine mesh for my simulation purpose because with normal and fine mesh it is unable to create mesh in my 3D model. while simulation i got "Out of memory during LU factorization". how...
View ArticleEiganvalues
hello dear, i am new in COMSOL what is the significance of eiganvalues while doing simulation in COMSOL 4.3b using Acoustic Module
View ArticleExpanding ringsource to cylinder
Hi, I am modeling sources in a fluid waveguide and using the 2D axisymetric acoustic module. Currently I am using a ring source by placing a flow circular source off-axis.. Since I want to model a...
View ArticleIrregular grating modeling using ports or background field
Dear all, I am a novice at comsol and has been building my first model for some time. I want to calculate the scattered field caused by a plane wave incident upon an irregular grating (with dozens of...
View ArticlePiezoelectric Transducers
Hi I am analyzing the signals in piezoelectric transducers. Can somebody help me in finding some of the difficulties I am facing. 1) How could I measure electric potential of the container on which an...
View ArticleAcoustic S Parameters Calculation
Hi, I have a very beginner-level doubt regarding the understanding of S Parameters- If we are to take the scattered sound pressure values, they have a real and imaginary part, i.e they are in the form...
View ArticleAcoustic resonance in a closed tube
Dear All, I am trying to simulate acoustic resonance in a closed end tube. I have attached my model, the incident sound pressure should be 3pa, and the resonance frequency should be around 198 hz. How...
View ArticleCAD data for KEMAR
Hello. I have seen papers with scans of the KEMAR manikin, such as from Mads Jensen when he was at Widex. I am in need of CAD data (e.g. STEP file) for the KEMAR head. Does anyone have such data? Would...
View ArticleLaminar Flow & Acoustics
Dear All, I am a novice user, I just wanna simulate the effect of acoustics pressure into the velocity profile of Laminar fluid flow I have pressure acoustics and fluid flow Now, I am stopping at how...
View ArticleHow to set PMl for acoustic module
I' m a green hand for comsol and I have some question about how to set the Perfect Matched Layer. Can you explain the meaning of following parameters.
View ArticleHOW TO GIVE STRESS ON A PIEZOELECTRIC MATERIAL SUCH THAT IT PRODUCES...
I WANT TO KNOW HOW TO GIVE STRESS ON A PIEZOELECTRIC COMPONENMT
View ArticleFlow and pressure Acoustics models
Hai is there any example model of flow and pressure Acoustics, to understand how pressure various when there is a constant flow, or heavy flow of liquids. thank you, taraka
View Articlehow to design a corrugated diaphragram (membrane) in condenser microphone
I am having problem in designing a corrugated diaphragam(membrane) in condenser microphone.What all changes could be done in the design to obtain a corrugated diaphragam in axisymmetric condenser...
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