Nada

^ Upp till kursens hemsida.

Information on 2D1274, Elektromagnetiska beräkningar

The course in Computational Electromagnetics (CEM) fall '06 surveys the mathematics and numerics for three classes of formulations, Maxwell Equations as PDE in the time and frequency domain; Integral equation formulations for the frequency domain, and High-frequency approximations (HF). The schedule (preliminary, see below) is for a 5-credit course with twelve meetings, homework/projects, Q&A-sessions to get started with labs, and a written examination. The course is intended for graduate and last year students in scientific computing, theoretical electromagnetics, and other interested parties. The first meeting is TUE Oct 17 15-17 in room 1537, Osquars B. 2

Outline

Survey of Mathematics and numerics

Maxwell Eqns. Time domain finite difference; Boundary conditions,
sources; Subgrid models;
Frequency domain element methods and couplings, e.g. applied to
wave-guides.

Field Integral equations. EFIE and MFIE, finite elements and
collocation, element properties, convergence. Iterative solution methods and
pre-conditioners. Fast methods, multi-poles and wavelets.

High-frequency approximations; Physical optics, Uniform theory of diffraction.
Ray techniques: Reflections, diffractions, creeping waves, etc.

Course News


Instructors


Jesper Oppelstrup, jespero@nada.kth.se, (course administrator), room 1520, tel. 7906228

NADA Course Secretary and Registration

Berit Gudmundsson, bergud@nada.kth.se, tel. 7908077.

Course material

The book: A.Bondeson,T.Rylander,P.Ingelstrom: Computational Electromagnetics, Springer, 2005 (Available at KTH bookstore)
Lecture notes J.Keller on Ray methods for HF applications. (handed out later)
Lab-instructions and matlab codes, downloadable from home page (here)
old exam papers, d:o.

Supplementary material

For those unfamiliar with the NADA UNIX environment, the following are recommended :

Preliminary Lecture Schedule

4523:     Lindstedtsv. 5,  5:th floor
1535:     Lindstedtsv. 3 or Osquars B. 2 , 5:th floor
1537:     Lindstedtsv. 3 or Osquars B. 2 , 5:th floor
L51 :     Dr. Kristinas v. 30

   Time                 Lecturer         Room
 1 Tue Oct 17    15-17    O              1537
 2 Fri Oct 20    17.30-   O              1537
 3 Tue Oct 24    10-12    O              4523*
 4 Fri Oct 27    10-12    O               L51*
 5 Mon Oct 30    10-12    O              1535*
---  6 Tue Oct 31    15-17    O              1537 --- cancelled---
 7 Tue Nov  7    15-17    O              4523*
 8 Fri Nov 10    10-12    O              1537
 9 Mon Nov 13    15-17    O              1537
10 Fri Nov 17    15-17    O              1537 - cancelled 
   Tue Nov 21    15-17    O              4523
=========== new schedule=========
   Tue Nov 28    15-17    O              TBD
   Tue Dec  5    15-17    O              TBD
   Tue Dec 12    15-17    O              TBD	

Schedule subject to agreement with students at first meeting.

Laboratory Work

The laboratory work consists of homework and computer experiments carried out by groups of no more than two students. Each group hands in a report on each HOMEWORK to an instructor, or in the NADA mailboxes (Osquars B. 2, bottom floor, and level 4) (NOT the instructors' mail stops !). Each group shall also make an oral presentation of one of the labs. You can also fax lab reports, 08/7900930 att. J.Oppelstrup. The deadline is Jan 12, 2007. Anything handed in after the deadline may take a long time to be graded. 
Lab 1: 
FDTD 1D & 2D; Non-reflective boundaries, sources (Huygens surfaces)
ps-file Lab 1
Lab 1  geom file 

Lab 2: 
FE for eigenfrequencies of cavity, node and edge elements;
MATLAB code from book can be downloaded from the url given in
introductory chapter; Instructions Lab 2 (same as under Course News above) pdf here

Lab 3:


Cancelled:
Quasi-steady equations, 2D Eddy Currents in axisymmetric model,
magnetic vector potential formulation, Comsol Multiphysics
cancelled

Lab 3:
Boundary integral (MoM) for TM wave scattering on PEC
and dielectric cylinder. See lecture notes above, and copy
from Wang handed out Nov. 21. 
Lab3 PEC exact sol (m-file)
Lab3 DIEL exact sol (m-file)

The NADA computers are available for computer work. No specific bookings have been made for the course. You may need a CSC account. Sign the name list sent round and after a few days go to the CSC help desk "Delfi" (Osquars B. 2) Delfi to obtain an account.
Discussions of homework and assignments with your fellow students are encouraged. We hope that those of you who are more experienced in some theoretical aspect, or in the use of computers, will give advice to others. The assignment reports should be clearly written and easy to read for the grader: Mere sheaves of computer plots and printed output will not be accepted.

Exams

The examination paper will be written with closed books. The first exam will be given around Dec 15, according to agreement with students. The next will be given in January. Further on, by popular request only.
Dec 15, 9-12, close to room 1521 (instructor's office) Here is an example of an old exam paper:
Exam Dec 17, 1999 (ps file)

The NADA Terminal Rooms

The student union magnetic card gives access to the NADA terminal rooms around the clock, but daytime they are often booked for other courses.

Student's comments

The course will be evaluated at the end when you will be asked to fill in a standard course evaluation form, but any comments along the way are most welcome !
Push here to fill in the inquiry:
% Kursanalys

^ Upp till kursens hemsida.

Sidansvarig: <jespero@nada.kth.se>
Senast ändrad 28 november 2006
Tekniskt stöd: <webmaster@nada.kth.se>