Finite element simulation of a solenoid

AI Thread Summary
The discussion focuses on performing a finite element simulation of a coil in a time-varying magnetic field to analyze induced current and its effects on the surroundings. The user seeks advice on modeling a coil with thousands of turns, considering the use of a cylinder with specific material parameters. There is a query about how to define these parameters effectively, particularly in the absence of certain functionalities in the available software. The user mentions previous experience with MAXWELL, noting the method of applying current excitation based on the number of turns. The conversation aims to gather insights on practical modeling techniques and software capabilities for simulating solenoids.
daudaudaudau
Messages
297
Reaction score
0
Hi all.

I would like to do a finite element simulation of a coil in a time-varying magnetic field, to see how much current is induced in the coil, and also to see how the coil itself affects its surroundings. Now my question is, how do I model a coil with several thousand turns in a practical finite element simulation? I was thinking that maybe I could just draw a cylinder and assign some (possibly anisotropic) material parameters, but then what should these be? I hope someone has an idea!
 
Physics news on Phys.org
Do you know how to use the program MAXWELL?
 
I am aware that Maxwell has some way of defining solid cylinders as coils, but this functionality does not exist in the software I have access to. Do you know how Maxwell implements this feature?
 
The last time I simulated a solenoid on MAXWELL, my assigned current excitation was the product of the applied current and the number of turns. The solenoid was a hollow cylinder with the excitation applied in the direction of the flowing current.
 
Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Thread 'Gauss' law seems to imply instantaneous electric field propagation'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
View full post »

Thread 'Do electron density waves accompany EM waves in coaxial cables?'

Maxwell’s equations imply the following wave equation for the electric field $$\nabla^2\mathbf{E}-\frac{1}{c^2}\frac{\partial^2\mathbf{E}}{\partial t^2} = \frac{1}{\varepsilon_0}\nabla\rho+\mu_0\frac{\partial\mathbf J}{\partial t}.\tag{1}$$ I wonder if eqn.##(1)## can be split into the following transverse part $$\nabla^2\mathbf{E}_T-\frac{1}{c^2}\frac{\partial^2\mathbf{E}_T}{\partial t^2} = \mu_0\frac{\partial\mathbf{J}_T}{\partial t}\tag{2}$$ and longitudinal part...
View full post »
Thread 'Recovering Hamilton's Equations from Poisson brackets'

Thread 'Recovering Hamilton's Equations from Poisson brackets'

The issue : Let me start by copying and pasting the relevant passage from the text, thanks to modern day methods of computing. The trouble is, in equation (4.79), it completely ignores the partial derivative of ##q_i## with respect to time, i.e. it puts ##\partial q_i/\partial t=0##. But ##q_i## is a dynamical variable of ##t##, or ##q_i(t)##. In the derivation of Hamilton's equations from the Hamiltonian, viz. ##H = p_i \dot q_i-L##, nowhere did we assume that ##\partial q_i/\partial...
View full post »

Similar threads

I Need a good idea : 3D simulation of Inductive wireless power transfer
Replies
6
Views
2K
How Can I Simulate Induced EMF in a Coil Using Ansys Maxwell?
Replies
1
Views
2K
Measuring the permeability of metallic objects
Replies
2
Views
2K
I Where Can I Find a High-Turn Solenoid for Low Current and Strong Magnetic Field?
Replies
9
Views
2K
How to model "LITZ" or "STRANDED" coils and windings
Replies
7
Views
3K
COMSOL simulation of a 3D Ferrite Bar Numerical Model For Magnetic Flux
Replies
5
Views
3K
I Force on Steel Bar Inside Solenoid
Replies
5
Views
5K
Optimetrics simulation of a coil and moving permanent magnet in Ansys Maxwell
Replies
12
Views
2K
I Visualizing fields around coils (statics and magnetostatics)
Replies
5
Views
955
COMSOL: stress on a sensor, how to use infinite element domain?
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top