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Tuesday, August 4, 2020 | History

3 edition of A least-squares finite element method for electromagnetic scattering problems found in the catalog.

A least-squares finite element method for electromagnetic scattering problems

A least-squares finite element method for electromagnetic scattering problems

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  • 22 Currently reading

Published by National Aeronautics and Space Administration, Lewis Research Center, Institute for Computational Mechanics in Propulsion, National Technical Information Service, distributor in [Cleveland, Ohio], [Springfield, Va .
Written in English

    Subjects:
  • Least squares method.,
  • Finite element method.,
  • Radar cross sections.,
  • Electromagnetic scattering.,
  • Computational fluid dynamics.,
  • Divergence.

  • Edition Notes

    Other titlesLeast squares finite element method for electromagnetic scattering problems.
    StatementJie Wu and Bo-nan Jiang.
    SeriesNASA contractor report -- 202313., NASA contractor report -- NASA CR-202313.
    ContributionsJiang, Bo-Nan, 1940-, Lewis Research Center. Institute for Computational Mechanics in Propulsion.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17697820M

    Finite element method — based on a discretization of the space of solutions gradient discretisation method — based on both the discretization of the solution and of its gradient Finite element method in structural mechanics — a physical approach to finite element methods. Finite Element Methods for Maxwell’s Equations, Oxford University Press, 2. The Linear Sampling Method in Inverse Electromagnetic Scattering, SIAM, (with F. Cakoni and D. Colton). A Least Squares Method for the Helmholtz Equation, Computer Methods in Applied.

    Extended Finite Element Method provides an introduction to the extended finite element method (XFEM), a novel computational method which has been proposed to solve complex crack propagation problems. The book helps readers understand the method and make effective use of the XFEM code and software plugins now available to model and simulate. This paper is devoted to the mathematical analysis of the diffraction of an electromagnetic plane wave by a biperiodic structure. The wave propagation is governed by the time-domain Maxwell equations in three dimensions. The method of a compressed coordinate transformation is proposed to reduce equivalently the diffraction problem into an initial-boundary value problem formulated in a bounded Author: Gang Bao, Bin Hu, Peijun Li, Jue Wang.

    The solution of non‐linear hyperbolic equation systems by the finite element method Parallel processing for the simulation of problems involving scattering of electromagnetic waves, Computer order accurate TVD scheme and p-version space-time least-squares finite-element method for nonlinear hyperbolic problems A method for calculating electromagnetic scattering properties of a finite periodic structure having a direction of periodicity is disclosed. The method numerically calculates electromagnetic scattering properties using spatial discretization in the direction of periodicity and numerically calculates electromagnetic scattering properties using spectral discretization in a direction orthogonal.


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A least-squares finite element method for electromagnetic scattering problems Download PDF EPUB FB2

Get this from a library. A least-squares finite element method for electromagnetic scattering problems. [Jie Wu; Bo-Nan Jiang; Lewis Research Center. Institute for Computational Mechanics in Propulsion.]. Buy The Least-Squares Finite Element Method: Theory and Applications in Computational Fluid Dynamics and Electromagnetics (Scientific Computation) Author: Bo-nan Jiang.

A least-squares finite element method for electromagnetic scattering problems, presented in the Third U.S. National Congress on Computational Mechanics, June 12–14,Dallas. Google Scholar Cited by: 1.

Chieh Wu has written: 'A least-squares finite element method for electromagnetic scattering problems' -- subject(s): Computational fluid dynamics, Radar cross sections, Finite element method. The Finite Element Method in Electromagnetics (Wiley - IEEE) [Jian-Ming Jin] on universityofthephoenix.com *FREE* shipping on qualifying offers.

A new edition of the leading textbook on the finite element method, incorporating major advancements and further applications in the field of electromagnetics The finite element method (FEM) is a powerful simulation technique used to solve boundary-value problems in Cited by: The development and practical implementation of edge finite element methods for metamaterial Maxwell’s equations are the main focus of the book.

The book finishes with some interesting simulations such as backward wave propagation and time-domain cloaking with metamaterials. Category: Computers The Finite Element Method For Electromagnetic.

Nov 28,  · Chieh Wu has written: 'A least-squares finite element method for electromagnetic scattering problems' -- subject(s): Computational fluid dynamics, Radar. Dimensionless form of the mathematical models is derived and used to present numerical studies for boundary value problems using finite element processes based on a residual functional, that is.

Stability of Conjugate Gradient and Lanczos Methods for Linear Least Squares Problems An Adaptive Finite Element Method with Perfectly Matched Absorbing Layers for the Wave Scattering by Periodic Structures. Related Databases. An Adaptive Finite Element Method for the Wave Scattering with Transparent Boundary universityofthephoenix.com by: () A discontinuous least-squares finite-element method for second-order elliptic equations.

International Journal of Computer Mathematics, Cited by: Least squares spectral element method for 2D Maxwell equations in the frequency domain In finite-element methods for solving electromagnetic field problems, the use of edge elements has become.

The development of the space-time method proceeds by considering a partition of the time interval, of the form 0 = t 0. As the availability of powerful computer resources has grown over the last three decades, the art of computation of electromagnetic (EM) problems has also grown - exponentially.

Despite this dramatic growth, however, the EM community lacked a comprehensive text on the computational techniques used to solve EM problems. The first edition of Numerical Techniques in Electromagnetics filled that 5/5(2). In some radiative transfer processes, the time scales are usually on the order of 10 − − 15 s ⁠, so the transient effect of radiation should be universityofthephoenix.com present research, a finite element model, which is based on the discrete ordinates method and least-squares variational principle, is developed to simulate the transient radiative transfer in absorbing and scattering universityofthephoenix.com by: Accelerate Iteration of Least-Squares Finite Element Method for Radiative Heat Transfer in Participating Media With Diffusely Reflecting Walls Computation, Diffusion (Physics), Electromagnetic scattering, Emissivity, Finite element methods, Radiation scattering, Radiative heat “Diffusion Synthetic Acceleration for SN Problems With Cited by: 4.

The finite element method (FEM) is especially suited for the numerical calculation of sound fields in irregularly formed inner spaces, since such spaces are of finite dimensions. Originally, the FEM was developed for predicting the static or dynamical response of.

Finite element methods for second order differential equations with significant first derivatives. ChristieBubble-Enriched Least-Squares Finite Element Method for OF TIME DOMAIN FINITE ELEMENT-BOUNDARY INTEGRAL AND WITH TIME DOMAIN PHYSICAL OPTICS FOR CALCULATION OF ELECTROMAGNETIC SCATTERING OF 3-D.

This paper addresses the development and application of adaptive methods for finite element solution of the Helmholtz equation in exterior domains. Adaptivity allows for efficient resolution of both large- and small-scale solution features by minimizing the necessary computational degrees of freedom.

La 4ème de couverture indique: "This book is a self-contained, programming-oriented and learner-centered book on finite element method (FEM), with special emphasis given to developing MATLAB® programs for numerical modeling of electromagnetic boundary value problems.

Objective. A study pertinent to the numerical modeling of cortical neurostimulation is conducted in an effort to compare the performance of the finite element method (FEM) and an original formulation of the boundary element fast multipole method (BEM-FMM) at matched computational performance universityofthephoenix.com by:.

Many of the current issues and methodologies related to finite element methods for time-harmonic acoustics are reviewed. The effective treatment of unbounded domains is a major challenge. Most prominent among the approaches that have been developed for this purpose are absorbing boundary conditions, infinite elements, and absorbing universityofthephoenix.com by: This method gives optimal accuracy in a norm similar to the H 1 norm.

When a regularity condition holds it is optimal in L 2 as well. Otherwise, it gives errors suboptimal by only h 1/2 (where h is the mesh diameter). Thus, it has greater accuracy than usual finite-element, finite-difference or least-squares methods for such problems.A comprehensive and updated overview of the theory, algorithms and applications of for electromagnetic inverse scattering problems Offers the recent and most important advances in inverse scattering grounded in fundamental theory, algorithms and practical engineering applications.