Control Mesh element distribution over the surface
How is it possible to control the mesh element distribution over a surface (boundary) between two 3D domain? I know "Distribution" that is used to control the mesh element distribution over an edge in...
View ArticleOptical force
Dear Richie Guo i want to calculate the optical force of the nano-silicon waveguide, i get the maxwell stress tensor, but i do not know which i will use:down or up and when i make the integration i get...
View ArticleWaveGuide
Dear Mr. Sergei Yushanov I hope that you are well, thanks allot for your posts in comsol they are very usefull and i wish you all the best, please i have a problem with my model: i simulate a...
View ArticleWaveguide
Dear Samuele i hope that you are well, please i tried to contact you on your email (samuele_lilliu@hotmail.com) but i failed can you send me your email i discuss with you some points about waveguide....
View ArticleHow to calculate the acoustic modes by RF module in COMSOL ?
We can calculate the optical modes by RF module in COMSOL . But I did not know how to calculate the acoustic modes which is produced by Brillouin scattering. ?Would you please give me more detailed...
View Articlesilencer duct
Hi I want to simulate insertion loss for ventilation ducts. I need to define inlet and outlet pressure so i can calculate insertion loss by its difference. There is a similar sample "perforated...
View Articlecan i calculate the absorption coefficients of absorber composed of...
hi, i am a new to comsol,. And i want to calculate the absorption coefficients of a absorber composed of micro-perforated plate and porous material. can i calculate the coefficients of micro-perforated...
View ArticleNeed a Help!! Band diagram & extracting eigenfrequency which I solved with...
I have to plot a Band diagram in 2D Photonic Crystal. I worked in Eigenfrequency model, which I reached via RF module > Electromagnetic waves, Frequency > Eigenfrequecy. After using parametric...
View ArticleV4.3a ---How to set coordinate System in Piezoelectric Devices-quartz oscillator
Hi, everybody! Recently,I study quartz oscillator,I reffered the example(thickness_shear_quartz_oscillator.mph),In this example,the document writed : The crystal axes used to define material properties...
View Articlerelation between two sudy
hi all, i created a model of piezoelectric device in piezoelectric module,now i want to transfer it to electromagnetic wave module because i need S parameters(that aren't in piezoelectric answers)but...
View Articlewater hammer
hello to everyone well I'm a student and hydraulic master2 I presonte memory of my study is to fain ^ ^ analysis of a battering ram in a pipe under COMSOL aep ^ 10 next joure. I have download COMSOL...
View Articleband structure
Hi Chris Are you still working on the band structure problem? I'm trying to draw the band diagram of a phononic crystal using elastic wave interface and wonder if my approach is correct or not. Do you...
View ArticleSilicon waveguide
Dear Mr. James Ransley i hope that you are well, i think you are the person that can help me to solve my problems, please look into the attached paper, in page 2 fig 1 d and e, he controlled the...
View ArticleAcoustic Band Structure in 2d
Hi Folks - Ive posted a couple of questions to some related discussion but it looks like they haven't been visited in a while so I thought I would make a new discussion group. I am interested in...
View ArticleFluid flow with a moving solid object/hole
Hello, I would like to model the airflow in a room occupied with people, and to allow the people (cylinders) to move around in the room. Is this possible in COMSOL? For a silly example in 2D: I have a...
View ArticleAbout impedance measurement
Hello, I am going to build up a model of Piezo and two others(pmma & Ti) materials (Frequency Domain Study) using Comsol 4.3a acoustics module. But I can't find out the impedance of piezo...
View ArticleAcoustic S Parameter Calculation
Hi, I am trying to obtain the variation of the refractive index(n) and impedance (Z) for a unit cell of a periodic structure. For this, I am using the Pressure Acoustics, Frequency Domain module in...
View ArticleBaw Resonator Problem
Hi I am working on a baw resonator. For our simulation we have considered a 3.5a COMSOL 2D model of Thin Film Bulk Acoustic Wave Resonator in the model archives of COMSOL. So we treid to simulate the...
View ArticleVibrating horizontal plate.
Good Evening everyone, I have a really simple question, I'm sure someone knows the answer to my problem. I'm trying to make a model of a plate, platform, anything you want to call it, that vibrates...
View Articleliquid loading
I'm a beginner level COMSOL user and new to this forum. So please excuse me if I happen to ask a really silly question. I've been trying to simulate the behaviour of a piezoelectric crystal upon...
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