A Combined Finite Element-Boundary Element Formulation for Solution of Two-Dimensional Problems Via Cgfft

Download A Combined Finite Element-Boundary Element Formulation for Solution of Two-Dimensional Problems Via Cgfft PDF Online Free

Author :
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722128135
Total Pages : 56 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!


Book Synopsis A Combined Finite Element-Boundary Element Formulation for Solution of Two-Dimensional Problems Via Cgfft by : National Aeronautics and Space Administration (NASA)

Download or read book A Combined Finite Element-Boundary Element Formulation for Solution of Two-Dimensional Problems Via Cgfft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-13 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for the computation of electromagnetic scattering from arbitrary two-dimensional bodies is presented. The method combines the finite element and boundary element methods leading to a system for solution via the conjugate gradient Fast Fourier Transform (FFT) algorithm. Two forms of boundaries aimed at reducing the storage requirement of the boundary integral are investigated. It is shown that the boundary integral becomes convolutional when a circular enclosure is chosen, resulting in reduced storage requirement when the system is solved via the conjugate gradient FFT method. The same holds for the ogival enclosure, except that some of the boundary integrals are not convolutional and must be carefully treated to maintain O(N) memory requirement. Results for several circular and ogival structures are presented and shown to be in excellent agreement with those obtained by traditional methods. Collins, Jeffery D. and Jin, Jian-Ming and Volakis, John L. Unspecified Center...

A Combined Finte Element-Boundary Element Formulation for Solution of Axially Symmetric Bodies

Download A Combined Finte Element-Boundary Element Formulation for Solution of Axially Symmetric Bodies PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis A Combined Finte Element-Boundary Element Formulation for Solution of Axially Symmetric Bodies by : JEFFERY D. COLLINS, JOHN L. VOLAKIS

Download or read book A Combined Finte Element-Boundary Element Formulation for Solution of Axially Symmetric Bodies written by JEFFERY D. COLLINS, JOHN L. VOLAKIS and published by . This book was released on with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Download Scientific and Technical Aerospace Reports PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 976 pages
Book Rating : 4.:/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

A Combined Finite Element and Boundary Integral Formulation for Solution Via Cgfft of 2-Dimensional Scattering Problems

Download A Combined Finite Element and Boundary Integral Formulation for Solution Via Cgfft of 2-Dimensional Scattering Problems PDF Online Free

Author :
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722891985
Total Pages : 154 pages
Book Rating : 4.8/5 (919 download)

DOWNLOAD NOW!


Book Synopsis A Combined Finite Element and Boundary Integral Formulation for Solution Via Cgfft of 2-Dimensional Scattering Problems by : National Aeronautics and Space Administration (NASA)

Download or read book A Combined Finite Element and Boundary Integral Formulation for Solution Via Cgfft of 2-Dimensional Scattering Problems written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new technique is presented for computing the scattering by 2-D structures of arbitrary composition. The proposed solution approach combines the usual finite element method with the boundary integral equation to formulate a discrete system. This is subsequently solved via the conjugate gradient (CG) algorithm. A particular characteristic of the method is the use of rectangular boundaries to enclose the scatterer. Several of the resulting boundary integrals are therefore convolutions and may be evaluated via the fast Fourier transform (FFT) in the implementation of the CG algorithm. The solution approach offers the principle advantage of having O(N) memory demand and employs a 1-D FFT versus a 2-D FFT as required with a traditional implementation of the CGFFT algorithm. The speed of the proposed solution method is compared with that of the traditional CGFFT algorithm, and results for rectangular bodies are given and shown to be in excellent agreement with the moment method. Collins, Jeffery D. and Volakis, John L. Unspecified Center BOUNDARY INTEGRAL METHOD; FAST FOURIER TRANSFORMATIONS; FINITE ELEMENT METHOD; WAVE SCATTERING; ALGORITHMS; COMPUTATIONAL GRIDS; COMPUTER SYSTEMS PERFORMANCE; MEMORY (COMPUTERS); METHOD OF MOMENTS; WAVE EQUATIONS...

Frequency Domain Hybrid Finite Element Methods in Electromagnetics

Download Frequency Domain Hybrid Finite Element Methods in Electromagnetics PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 3031016947
Total Pages : 148 pages
Book Rating : 4.0/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Frequency Domain Hybrid Finite Element Methods in Electromagnetics by : John Volakis

Download or read book Frequency Domain Hybrid Finite Element Methods in Electromagnetics written by John Volakis and published by Springer Nature. This book was released on 2022-06-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a brief overview of the popular Finite Element Method (FEM) and its hybrid versions for electromagnetics with applications to radar scattering, antennas and arrays, guided structures, microwave components, frequency selective surfaces, periodic media, and RF materials characterizations and related topics. It starts by presenting concepts based on Hilbert and Sobolev spaces as well as Curl and Divergence spaces for generating matrices, useful in all engineering simulation methods. It then proceeds to present applications of the finite element and finite element-boundary integral methods for scattering and radiation. Applications to periodic media, metamaterials and bandgap structures are also included. The hybrid volume integral equation method for high contrast dielectrics and is presented for the first time. Another unique feature of the book is the inclusion of design optimization techniques and their integration within commercial numerical analysis packages for shape and material design. To aid the reader with the method's utility, an entire chapter is devoted to two-dimensional problems. The book can be considered as an update on the latest developments since the publication of our earlier book (Finite Element Method for Electromagnetics, IEEE Press, 1998). The latter is certainly complementary companion to this one.

Monthly Catalog of United States Government Publications

Download Monthly Catalog of United States Government Publications PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1200 pages
Book Rating : 4.:/5 (891 download)

DOWNLOAD NOW!


Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Monthly Catalogue, United States Public Documents

Download Monthly Catalogue, United States Public Documents PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 1644 pages
Book Rating : 4.:/5 (31 download)

DOWNLOAD NOW!


Book Synopsis Monthly Catalogue, United States Public Documents by :

Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1991 with total page 1644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A FINITE ELEMENT - BOUNDARY INTEGAL METHOD FOR SCATTERING AND RADIATION BY TWO - AND THREE DIMENSIONAL STRUCTURES

Download A FINITE ELEMENT - BOUNDARY INTEGAL METHOD FOR SCATTERING AND RADIATION BY TWO - AND THREE DIMENSIONAL STRUCTURES PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis A FINITE ELEMENT - BOUNDARY INTEGAL METHOD FOR SCATTERING AND RADIATION BY TWO - AND THREE DIMENSIONAL STRUCTURES by :

Download or read book A FINITE ELEMENT - BOUNDARY INTEGAL METHOD FOR SCATTERING AND RADIATION BY TWO - AND THREE DIMENSIONAL STRUCTURES written by and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Finite Element Method in Electromagnetics

Download The Finite Element Method in Electromagnetics PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1118841980
Total Pages : 1195 pages
Book Rating : 4.1/5 (188 download)

DOWNLOAD NOW!


Book Synopsis The Finite Element Method in Electromagnetics by : Jian-Ming Jin

Download or read book The Finite Element Method in Electromagnetics written by Jian-Ming Jin and published by John Wiley & Sons. This book was released on 2014-03-31 with total page 1195 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 a variety of engineering circumstances. It has been widely used for analysis of electromagnetic fields in antennas, radar scattering, RF and microwave engineering, high-speed/high-frequency circuits, wireless communication, electromagnetic compatibility, photonics, remote sensing, biomedical engineering, and space exploration. The Finite Element Method in Electromagnetics, Third Edition explains the method’s processes and techniques in careful, meticulous prose and covers not only essential finite element method theory, but also its latest developments and applications—giving engineers a methodical way to quickly master this very powerful numerical technique for solving practical, often complicated, electromagnetic problems. Featuring over thirty percent new material, the third edition of this essential and comprehensive text now includes: A wider range of applications, including antennas, phased arrays, electric machines, high-frequency circuits, and crystal photonics The finite element analysis of wave propagation, scattering, and radiation in periodic structures The time-domain finite element method for analysis of wideband antennas and transient electromagnetic phenomena Novel domain decomposition techniques for parallel computation and efficient simulation of large-scale problems, such as phased-array antennas and photonic crystals Along with a great many examples, The Finite Element Method in Electromagnetics is an ideal book for engineering students as well as for professionals in the field.

Computational Electromagnetics and Its Applications

Download Computational Electromagnetics and Its Applications PDF Online Free

Author :
Publisher : Springer
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Computational Electromagnetics and Its Applications by : Thomas G. Campbell

Download or read book Computational Electromagnetics and Its Applications written by Thomas G. Campbell and published by Springer. This book was released on 1997-09-30 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the first ICASE/LaRC Work shop on Computational Electromagnetics and Its Applications conducted by the Institute for Computer Applications in Science and Engineering and NASA Langley Research Center. We had several goals in mind when we decided, jointly with the Elec tromagnetics Research Branch, to organize this workshop on Computa tional Electromagnetics ( CEM). Among our goals were a desire to obtain an overview of the current state of CEM, covering both algorithms and ap plications and their effect on NASA's activities in this area. In addition, we wanted to provide an attractive setting for computational scientists with expertise in other fields, especially computational fluid dynamics (CFD), to observe the algorithms and tools of CEM at work. Our expectation was that scientists from both fields would discover mutually beneficial inter connections and relationships. Another goal was to learn of progress in solution algorithms for electromagnetic optimization and design problems; such problems make extensive use of field solvers and computational effi ciency is at a premium. To achieve these goals we assembled the renowned group of speakers from academia and industry whose talks are contained in this volume. The papers are printed in the same order in which the talks were pre sented at the meeting. The first paper is an overview of work currently being performed in the Electromagnetic Research Branch at the Langley Research Center.

Nonreflecting Boundary Conditions for Finite Element Methods Based Upon Off-surface Boundary Integral Equations

Download Nonreflecting Boundary Conditions for Finite Element Methods Based Upon Off-surface Boundary Integral Equations PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Nonreflecting Boundary Conditions for Finite Element Methods Based Upon Off-surface Boundary Integral Equations by : Ata Muğan

Download or read book Nonreflecting Boundary Conditions for Finite Element Methods Based Upon Off-surface Boundary Integral Equations written by Ata Muğan and published by . This book was released on 1995 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Semi-Annual Report For NASA Grant NAG-2-541

Download Semi-Annual Report For NASA Grant NAG-2-541 PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 49 pages
Book Rating : 4.L/5 ( download)

DOWNLOAD NOW!


Book Synopsis Semi-Annual Report For NASA Grant NAG-2-541 by : NASA

Download or read book Semi-Annual Report For NASA Grant NAG-2-541 written by NASA and published by . This book was released on with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Finite Element Software for Microwave Engineering

Download Finite Element Software for Microwave Engineering PDF Online Free

Author :
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Finite Element Software for Microwave Engineering by : Tatsuo Itoh

Download or read book Finite Element Software for Microwave Engineering written by Tatsuo Itoh and published by Wiley-Interscience. This book was released on 1996-08-23 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite element methods have become essential design tools for managing the complex structures and devices needed in modern microwave technology. Long the preferred techniques of both researchers and engineers, their migration from research lab to routine industrial use has been accelerated by hardware and software improvements. The last decade has seen the widespread availability of good commercial finite element programs for an extensive range of applications. Finite Element Software for Microwave Engineering provides the first comprehensive overview of this burgeoning field. With its unique focus on current and future industrial applications rather than on mathematical methodology, this book is an invaluable complement to the existing literature on finite element methods. Directed to practicing engineers and researchers, the book describes user experience with current software, shows how existing programs can be used to solve problems not foreseen by their designers, and attempts to predict which methods may appear in the commercial products of tomorrow.

user mannual for automesh-2d

Download user mannual for automesh-2d PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.L/5 ( download)

DOWNLOAD NOW!


Book Synopsis user mannual for automesh-2d by : chongyu hua

Download or read book user mannual for automesh-2d written by chongyu hua and published by . This book was released on with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Diffractive and Holographic Optics Technology III

Download Diffractive and Holographic Optics Technology III PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Diffractive and Holographic Optics Technology III by : Ivan Cindrich

Download or read book Diffractive and Holographic Optics Technology III written by Ivan Cindrich and published by . This book was released on 1996 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Finite Elements for Wave Electromagnetics

Download Finite Elements for Wave Electromagnetics PDF Online Free

Author :
Publisher : Institute of Electrical & Electronics Engineers(IEEE)
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Finite Elements for Wave Electromagnetics by : IEEE Antennas and Propagation Society

Download or read book Finite Elements for Wave Electromagnetics written by IEEE Antennas and Propagation Society and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1994 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Selected Papers on Subwavelength Diffractive Optics

Download Selected Papers on Subwavelength Diffractive Optics PDF Online Free

Author :
Publisher : SPIE-International Society for Optical Engineering
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (91 download)

DOWNLOAD NOW!


Book Synopsis Selected Papers on Subwavelength Diffractive Optics by : Joseph Neil Mait

Download or read book Selected Papers on Subwavelength Diffractive Optics written by Joseph Neil Mait and published by SPIE-International Society for Optical Engineering. This book was released on 2001 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: SPIE Milestones are collections of seminal papers from the world literature covering important discoveries and developments in optics and photonics.