Help, in comsol how to set a perfect plane wave (3D)?

Click For Summary
SUMMARY

This discussion focuses on setting up a perfect plane wave in COMSOL for 3D scattering simulations. The user has configured a cubic domain with Perfectly Matched Layer (PML) boundaries, applying a Transition Boundary Condition with Ex=1 for an x-polarized plane wave propagating in the z direction. The user seeks advice on the appropriate boundary condition for the z direction and the correctness of their incident plane wave setup.

PREREQUISITES
  • Familiarity with COMSOL Multiphysics, specifically version 5.6 or later.
  • Understanding of electromagnetic wave propagation and boundary conditions.
  • Knowledge of Perfectly Matched Layer (PML) techniques in computational simulations.
  • Experience with setting up Transition Boundary Conditions in 3D simulations.
NEXT STEPS
  • Research the application of Perfectly Matched Layer (PML) in COMSOL for 3D simulations.
  • Learn about different boundary conditions in electromagnetic simulations, specifically PEC and PMC.
  • Explore the setup of plane waves in COMSOL, focusing on x-polarized configurations.
  • Investigate best practices for incident wave configurations in scattering simulations.
USEFUL FOR

Researchers and engineers involved in electromagnetic simulations, particularly those using COMSOL for 3D scattering analysis and wave propagation studies.

jackie_young
Messages
1
Reaction score
0
Hello everyone,

I am recently doing some 3D scattering simulation. I use a plane wave as the illumination field,specifically i set a cubic configuration surrounded by PML. I chose one interior boundary and set it as Transition Boundary Condition and set the Ex=1 (x-polarized plane wave propagating along z direction). I also set the outmost boundary as PEC (perpendicular to Ex) and PMC (perpendicular to Hy). I have two questions in fact:

(1) what boundary condition should i set in the Z direction (along the incident beam),PMC?PEC? or others ?

(2) whether i am right to set the incident plane wave in such a way ?

Thanks a lot !:smile:
 
Last edited:
Engineering news on Phys.org
We have several prior threads that can help you.
https://www.physicsforums.com/search/25855/?q=comsol++plane+wave&o=relevance
 

Similar threads

Graduate Electric and magnetic field lines in a plane wave of finite extent
  • · Replies 1 ·
Replies
1
Views
2K
Fresnel Equations Simulation in 2D: How to Avoid Side Entry in Comsol?
  • · Replies 3 ·
Replies
3
Views
3K
Interference pattern of a fan of plane waves
  • · Replies 2 ·
Replies
2
Views
2K
COMSOL - Plane Wave Radiation input not matching Pressure Field
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Understanding Ewald's sphere in the context of X-Ray diffraction
  • · Replies 3 ·
Replies
3
Views
6K
Help, can't visualize a fantasy worldbuilding mechanic
  • · Replies 1 ·
Replies
1
Views
3K
COMSOL Help: 3D Electromagnetics Wave Propagation
  • · Replies 5 ·
Replies
5
Views
3K
EM: Uniform plane wave incident on normal boundry
  • · Replies 1 ·
Replies
1
Views
2K
How Can I Create a 3D Magnetic Field Simulation with Ansoft Maxwell?
  • · Replies 1 ·
Replies
1
Views
8K
How Do Magnetic Planes Influence Current Density in Conductive Materials?
  • · Replies 3 ·
Replies
3
Views
2K