Need the Elasticity matrix, coupling matrix, relative permittivity values of...
Hi, Came up in developing a piezoelectric energy harvesting model and included structural steel in between. But after including domains it showed this errorNeed the Elasticity matrix, coupling matrix,...
View ArticleConversion Of Parametric Surface To Solid
Hi, I try to build geometry in COMSOL via Parametric surface and covert it to solid, the problem is, COMSOL builts it in two forms, in one form i'm able to make a solid object and in another from I...
View ArticleHow to add a rigid body to a electromechanical simulation ?
I would like to model a MEMS device but have one part be rigid. In the solid mechnics modul, one can simply define a rigid domain, by clicking on Material Models>Rigid Domain.However, when I use the...
View ArticleCan comsol calculate the gas-solid coupling model of transient plastic...
I am simulating a gas-solid coupling model with gas coals. The pde module simulates the gas flow field and is used to calculate the gas pressure P. The solid mechanics module is used to simulate the...
View ArticleIsolator layer not isolating
Good evening,I have a model of a thermoelectric generator made of Bi2Te3 and isolated with alumina.However, the isolator layer doesnt have constant voltage, despite the very low electrical conductivity...
View ArticleCOMSOL Simulation For Heat And Mass Transfer Across Membrane For Membrane...
Hi everybody, I am trying to medel a 3D comprehensive mathematical model using comsol for Membrane distillation system (DCMD). I have already used programming to model this system now I used following...
View ArticleRadiation - Discrete Ordinates
In the simple model attached an incident irradiation of 10 W/m² is set at the internal walls, but when solving a value as high as ~50 W/m² is reached at this surface. Why?
View ArticleMagnetic Field Simulation; 'Stationary' and 'time dependent study'...
This is Jason Kim, studying biomedical engineering in Korea in the field of diagnostic medical device. I'd like to discuss and share your experiences regarding 'Coil and magnetic field' and here I post...
View Articlemeasure the distance between two boundaries.
Dear, all I am simulating a droplet impact on texted surface. I want plot a graph : distance VS Time. For this case, How to plot it?Thanks.
View ArticleAir-filled Cavity in Cable Insulation
I have made a simple cable and insulation with a circular air-filled cavity in the insulation.When I perform the stationary study, the electric field through the cavity remains the same, regardless of...
View ArticleGetting different values each time running the same simulation
Hello all,I am working on Comsol 5.3, using a time dependent ion flow model with 2 Partial differential equations. Everytime I run the same simulation (without any change) i get totally different...
View ArticleCorona Discharge in 2D modeling
Hello, I would like to know if someone has managed to convert the 1D model that exists in the Application Library to 2D for the Corona Discharge at Atmospheric Pressure.I have created the 2D model and...
View ArticleEqual spacing across an object
Hi, I'm looking for an operation that seems quite trivial yet somehow I wasn't able to find a way to do it. My apologies in advanced if I missed something obvious, I'm very new to comsol. I want to...
View Articleparticle tracing for PTV/PIV
Dear all,I tried ti sed a simple model to create video to analyze with particle tracking velocimetry tecniques...someone did it?I have two questions: it's possible to avoid the trajectories on the...
View ArticlePort in Wave Optics
Hi there,I am new to Comsol and my major is plasmonics. I review some examples in Comsol, but I am confused about ports. I cannot understand the difference between them (priodic, numeric, ...), so I...
View ArticleWhat is effective mode index in COMSOL?
I'm working on PCF mode analysis and I'm new to COMSOL, I don't really understand what effective mode index exactly means.
View ArticleThe Spring Constant Of A Rectangular Cantilever by comsol
Calculating The Spring Constant Of A Rectangular Cantilever by comsol ? W=234 (μm), L=2471 (μm) T=90 (μm)compare to this formula k = (0.25 * ((E * W * (T^3))/(L^3))) if any one can simulate this by...
View ArticleModule for calculating the fault current in grid dc
Dear all, Hoping all is doing well with you. I'm asking for a module for calculationg the earth curent in a grid high voltage DC. Also the name of Multiphysics. Kindest Regards Samar
View ArticleSurface reaction and Reactive Pellet Bed
The below post is related to an archived discussionHi all,I would like to model a reaction that occurs on the surface of pellets which are non porous.The reaction scheme: A+B(ads)<=>C(ads)Where...
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