Computational Electromagnetics

Abstract

The overall work in the proposed areas for the duration of this effort, through November 2010, is detailed in what follows. In particular, our efforts gave rise to 1) Volumetric propagation and scattering solvers for propagation through thousand of kilometers of realistic three-dimensional atmospheres (completed in 2009); 2) Development of high-order solvers, which do not suffer from restrictive CFL conditions, for solution of time-dependent wave-propagation problems in inhomogeneous media; 3) Electromagnetic integral solvers for open surfaces in three dimensions, with applicability to design of reflectarray antennas and negative-index materials; 4) Fast, high-order solvers for wire antenna problems; and 5) Solvers for general PDE problems which, not based on use of either finite elements or finite differences use the continuation method instead, and have been shown to lead to unconditionally stable numerics for a wide range of realistic PDE problems.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 20, 2011
Accession Number
ADA565471

Entities

People

  • Oscar P. Bruno

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Frequency
  • Integral Equations
  • Integrals
  • Jet Propulsion
  • Mathematical Analysis
  • Navier Stokes Equations
  • Negative Index Metamaterials
  • Numerical Analysis
  • Partial Differential Equations
  • Refractive Index
  • Scattering
  • Three Dimensional
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Systems Analysis and Design