Quick question regarding integration order in Generator 2D model
Hello all, I have a quick question regarding the integration order of the z component of the electric field in the example model "Generator 2D". In the example model the order of integration, and thus...
View ArticleMaking the Generator 2D model into a Motor 2D model
Hello all, How would one change the example model, "Generator 2D" into a motor? Is there a way to make the rps parameter of the "Prescribed Rotational Velocity" property be based on the magnetic field...
View ArticlePDE
I am currently working on COMSOL 4.0a. Can anybody tell me how the variables for stress are defined in COMSOL? Since I want to define a Coefficient PDE, which its diffusion coefficient (c) is coupled...
View ArticleTime dependent study on a 3D multiturn coil inside of an electrical circuit
Hello, I am trying to model the voltage in function of time across a 3D multiturn coil inside of an electrical circuit. To do this I use the Magnetic Fields and the Electrical Circuit physics and a...
View ArticleDefine an arbitrary EM wave
Hello I am new in Comsol and i have a problem : i want to calculate SAR for SAM phantom for different types of EM waves. but the source of EM waves ( signal generator ) isn't important. is there any...
View Article3D RF Module Calculation on Multiple Cores
I am planning to build a computer for running Comsol, and was hoping to find out how well Comsol can utilize multiple cores for RF Module calculations. The most demanding calculation that we would like...
View ArticleCapacitive Shielding
Hi everyone, I'm trying to model a capacitive shield made of aluminium. The shield function is to interrupt the capacitive coupling between un helical coil and a charge inside the coil. Our objective...
View ArticleAcoustic-Structure Interaction
Hi, I'm trying to solve a time-dependent Acoustic-Structure problem that consist in a acoustic pressure applied in the inlet of a tube as a boundary condition, in the outlet of this tube I applied a...
View ArticleRe : Calculation of thickness
Hi, How is thickness of a deposition calculated using COMSOL Electrodeposition module? I am looking at the equations part or how is the thickness calculated and the parameters involved it. Thanks,
View ArticleParticle Field Interaction
Hi, I have been trying to use the particle tracing module in COMSOL and I have been able to trace particles with electric and magnetic fields. As I am putting in milli amps of current and I want to...
View ArticleTransducer like perturbations applied at one end of a chain of steel balls...
I am trying to simulate a piezoelectric transducer used as an actuator to perturb a chain of steel balls in a copper pipe in contact with a second transducer at the other end. I am trying to simulate...
View ArticleExternal radiation source- solar radiation
Greetings! I have a final project where I should measure maximum solar radiation heat flux during a day on re-radiating surface (i.e mirror) towards a window. My object finally is to to find an optimum...
View ArticleFlouquet periodicity on Eigenfrequency analysis 3D
Hi everyone! I'm trying to obtain dispersion curves for a 2D periodic structure in 3D. Already build the geometry (basically a ball inside a box), assigned the materials, and set the Flouquet...
View Articlecomsol 3.5 Capacitance and permittivity calculation
Hello everyone, I 'm new to comsol and I've been trying to model a simple parallel plate capacitor with a mixture as dielectric. I wish to obtain the effective permittivity value of the mixture. Since...
View Articlesolver sequences
Hi, I am simulating fluid flow and heat transfer in a cylindrical pipe. what i need is a very long term simulation (i.e., 25 years) and I am using pipe flow module which assumes the pipe and 1D and the...
View ArticleTemperature distribution within a cable's cross-section
I want to simulate the temperature distribution within a cable's cross-section. Three phase currents with 120 phase shift are applied to this cable. The physics i use is heat transfer in solid, I add...
View ArticleNo-slip on interior boundary
I like to solve (Comsol 4.1) Navier-Stokes (incompressible) in a 2D-domain that has an interior boundary (typically a line starting at some point on the exterior boundary and ending at some point...
View ArticleSlip and No Slip
What is the difference between slip and no slip options in the boundary conditions of laminar flow. which will be a suitable option to choose for blood flow in capillaries.
View Articlehorizontal stress only shows in the top layer
hi i'm simulating a road using the elastic model. the road has 3 layers (asphalt, foundation, soil) with different moduli. when I apply the loads of the wheels, I can clearly see how the vertical...
View ArticleHelp me! Error"Internal error in boundary respecting."
Hi, all I want fix it, It is coordinate (-2,06378, 1,35209, 2,8034) Thank a lot Vinh Nguyen
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