標題: Titlebook: Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods; Steffen Marburg,Bodo Nolte Book 2008 Springe [打印本頁] 作者: MOTE 時間: 2025-3-21 16:10
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書目名稱Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods讀者反饋學(xué)科排名
作者: 步履蹣跚 時間: 2025-3-21 23:44 作者: 卜聞 時間: 2025-3-22 01:30
The Pigeonhole and Multiplicity Boundsroximation that is most appropriate for high frequency analysis where traditional finite element approaches become expensive. Subsystems are coupled together using net energy flow and energy superposition principles.作者: 偏見 時間: 2025-3-22 05:50 作者: 不可接觸 時間: 2025-3-22 09:14 作者: Narcissist 時間: 2025-3-22 16:42 作者: Narcissist 時間: 2025-3-22 17:55
Infinite Elementsion. In this chapter infinite elements are introduced with reference to a simple one–dimensional formulation and then extended to two and three dimensions. The application of the method to transient problems is also touched upon.作者: 盡責(zé) 時間: 2025-3-23 00:43
https://doi.org/10.1007/978-1-4613-2868-1–fields in finite and boundary element methods are discussed. In the final part of this chapter, the authors categorize the subsequent twenty chapters of this book. The chapter will be completed by an outlook and some open problems in the development of finite and boundary element techniques from the authors’ points of view.作者: prostatitis 時間: 2025-3-23 02:04 作者: Chandelier 時間: 2025-3-23 07:26
A Unified Approach to Finite and Boundary Element Discretization in Linear Time–Harmonic Acoustics–fields in finite and boundary element methods are discussed. In the final part of this chapter, the authors categorize the subsequent twenty chapters of this book. The chapter will be completed by an outlook and some open problems in the development of finite and boundary element techniques from the authors’ points of view.作者: intolerance 時間: 2025-3-23 09:59
Fast Solution Methodslvers is that they do not require the dense matrix to be set up. Only matrix–vector products need to be evaluated which can be done efficiently using a multilevel fast multipole method. Based on real life problems it is shown that the computational complexity of the boundary element method can be reduced to . . .) for a problem with N unknowns.作者: insincerity 時間: 2025-3-23 16:56 作者: 把…比做 時間: 2025-3-23 21:44 作者: cinder 時間: 2025-3-24 00:24
Book 2008 Method (BEM) is quite popular for exterior ones. ..That is why this valuable reference provides a complete survey of methods for computational acoustics, namely FEM and BEM. It demonstrates that both methods can be effectively used in the complementary cases. ...The chapters by well-known authors a作者: 連鎖,連串 時間: 2025-3-24 05:12 作者: Invertebrate 時間: 2025-3-24 09:45 作者: 去才蔑視 時間: 2025-3-24 12:10 作者: MURAL 時間: 2025-3-24 17:56 作者: GOAT 時間: 2025-3-24 23:01 作者: AVOW 時間: 2025-3-25 02:30
Computational Aeroacoustics based on Lighthill’s Acoustic Analogynsists in computing the turbulent flow field from which the acoustic source terms are evaluated. Subsequently the acoustic radiation is computed. Therewith, no feedback from the acoustic field to the turbulent flow is considered.作者: Bone-Scan 時間: 2025-3-25 07:09
Perfectly Matched Layers accuracy of the Cartesian PML approach and compare different absorbing profiles. Finally, we introduce the pressure formulation of the radial PML model in the frequency domain and revise the theoretical results that assess the accuracy of this technique in the continuous model. Under convenient ass作者: CRAMP 時間: 2025-3-25 08:41
Fluid–Structure Acoustic Interactiontization. We compare the results obtained with all these methods and with the pure displacement formulation, which has to be discretized by Raviart–Thomas elements. Next, we show how to apply a modal synthesis approach based on the displacement potential formulation. Finally, we report how the pure 作者: 變量 時間: 2025-3-25 14:02 作者: 閑聊 時間: 2025-3-25 19:47 作者: parsimony 時間: 2025-3-25 20:38
Computational Acoustics of Noise Propagation in Fluids - Finite and Boundary Element Methods作者: 6Applepolish 時間: 2025-3-26 01:58 作者: 過于平凡 時間: 2025-3-26 06:51
Book 2008ti-frequency solutions and highly efficient methods; and secondly, solutions techniques for the particular difficulties that arise with external problems, e.g. discussion of absorbing boundaries for FEM and treatment of the non-uniqueness problem for BEM. Finally, both parts on FEM and on BEM are co作者: Misgiving 時間: 2025-3-26 11:09 作者: Thrombolysis 時間: 2025-3-26 15:20 作者: 蘆筍 時間: 2025-3-26 18:25
https://doi.org/10.1007/978-3-642-65367-4 accuracy of the Cartesian PML approach and compare different absorbing profiles. Finally, we introduce the pressure formulation of the radial PML model in the frequency domain and revise the theoretical results that assess the accuracy of this technique in the continuous model. Under convenient ass作者: novelty 時間: 2025-3-26 21:25
Abelian Groups and Character Sums,tization. We compare the results obtained with all these methods and with the pure displacement formulation, which has to be discretized by Raviart–Thomas elements. Next, we show how to apply a modal synthesis approach based on the displacement potential formulation. Finally, we report how the pure 作者: 帶來墨水 時間: 2025-3-27 04:18 作者: 從屬 時間: 2025-3-27 09:12
Standard Mechanical Test Procedures,ement still remains to be a viable choice today. When implemented in a modular way using the impedance matrix approach, the multi–domain boundary element method is very efficient and requires only a small amount of computer memory. Instead of being totally eliminated, the multi–domain boundary eleme作者: 粉筆 時間: 2025-3-27 10:19
r the particular difficulties that arise with external problems, e.g. discussion of absorbing boundaries for FEM and treatment of the non-uniqueness problem for BEM. Finally, both parts on FEM and on BEM are co978-3-642-09608-2978-3-540-77448-8作者: 逢迎白雪 時間: 2025-3-27 16:43
https://doi.org/10.1007/978-3-540-77448-8Acoustics; Burton-Miller method; CHIEF; Collocation method; Discretization method; Galerkin me; absorbing 作者: 發(fā)誓放棄 時間: 2025-3-27 20:27
978-3-642-09608-2Springer-Verlag Berlin Heidelberg 2008作者: commensurate 時間: 2025-3-27 23:08
https://doi.org/10.1007/978-1-4613-2868-1nt techniques for linear time–harmonic acoustics starting from the fundamental axioms of continuum mechanics. Based on these axioms, the wave equation is derived. Using a time–harmonic approximation, the boundary value problem of linear time–harmonic acoustics is formulated in the classic and in the作者: 使腐爛 時間: 2025-3-28 04:34 作者: Decimate 時間: 2025-3-28 06:51 作者: 刺耳 時間: 2025-3-28 12:13 作者: 啤酒 時間: 2025-3-28 18:22
https://doi.org/10.1007/978-3-319-05272-4tific theory of the generation of noise by aerodynamic flows has been established, most practical aeroacoustic analysis relies upon the so–called Acoustic Analogy, whereby the governing equations of fluid dynamics are rewritten into a wave like equation. The most common and a widely–used formulation作者: Criteria 時間: 2025-3-28 19:48
Rajiv Ranjan Srivastava,Sadia Ilyasudy is associated with an unbounded medium, yet one is interested (or is forced) to solve the problem in a finite computational domain. In this context the artificial boundaries are often called absorbing boundaries, for reasons that will be explained. After discussing the difficulties involved, the作者: intimate 時間: 2025-3-29 00:29 作者: 雄辯 時間: 2025-3-29 06:07
Sedimentary Rocks and the Oceans,er alternative boundary treatments for such problems. For example, they provide a direct numerical estimate of the solution at all points in the outer domain and by using elements of arbitrary radial order they give an anechoic boundary condition which is accurate to an arbitrary order of approximat作者: 發(fā)源 時間: 2025-3-29 08:11 作者: CHAR 時間: 2025-3-29 15:17 作者: manifestation 時間: 2025-3-29 18:48
The Pigeonhole and Multiplicity Boundss rods, beams, plates, and acoustical enclosures. The methodology for predicting the behavior in the subsystems is based on a diffuse energy field approximation that is most appropriate for high frequency analysis where traditional finite element approaches become expensive. Subsystems are coupled t作者: indenture 時間: 2025-3-29 23:07
Pollard’s Theorem for General Abelian Groupsuestion of using either continuous or discontinuous elements for collocation. Continuous interpolation of the sound pressure has been favored in most applications of boundary element methods for acoustics. Only a few papers are known where discontinuous elements are applied because they guarantee C1作者: Inscrutable 時間: 2025-3-30 02:43
Robert D. Adams,William C. Wakect solution of the fully populated system of linear equations. Strategies to reduce this complexity are discussed in this paper. The . .) complexity issuing from the direct solution is first reduced to . .) by using iterative solvers. Krylov subspace methods as well as strategies of preconditioning 作者: 冷淡一切 時間: 2025-3-30 05:48 作者: inferno 時間: 2025-3-30 11:26
Anaerobic and Structural Acrylic Adhesives,metries. The formulation is based on a variational approach using a mixture of non–internal node element shape functions and wave solutions. The numerical method provides solutions to acoustic duct or fluid waveguide environments which may be divided into uniform cross–sectional regions. Trial funct作者: Oscillate 時間: 2025-3-30 13:56 作者: Dappled 時間: 2025-3-30 17:34 作者: legacy 時間: 2025-3-30 23:56
Steffen Marburg,Bodo NolteOnly book summarizing FEM and BEM (and optimization) for acoustics.The chapters discuss fundamental issues of the methods.Methods will be presented for engineers, even if they are described by mathema作者: GONG 時間: 2025-3-31 04:01
http://image.papertrans.cn/c/image/232073.jpg作者: 釘牢 時間: 2025-3-31 08:58 作者: 屈尊 時間: 2025-3-31 09:47
Dispersion, Pollution, and Resolutionution errors, leading to prohibitive computational demands. Dispersion analysis provides a useful tool in both characterizing the performance of conventional methods and designing improved techniques. Since computation naturally separates the scales of a problem according to the mesh size, multiscal作者: 擴音器 時間: 2025-3-31 13:36
Different Types of Finite Elements, we provide a detailed discussion about the concepts of FEM and apply it to the acoustic wave equation. We introduce the standard (Lagrangian) FE basis functions for approximating the continuous acoustic pressure as well as an alternative approach utilizing spline functions. In a second part we foc作者: Instinctive 時間: 2025-3-31 20:37
Multifrequency Analysis using Matrix Padé–via–Lanczosm. The simplest approach based on solving the matrix system of equations arising from a finite element discretization of the problem across a frequency range using a direct or iterative solver at each frequency can be prohibitively expensive. However, in modeling a physical problem, the analyst may 作者: 掙扎 時間: 2025-3-31 22:54
Computational Aeroacoustics based on Lighthill’s Acoustic Analogytific theory of the generation of noise by aerodynamic flows has been established, most practical aeroacoustic analysis relies upon the so–called Acoustic Analogy, whereby the governing equations of fluid dynamics are rewritten into a wave like equation. The most common and a widely–used formulation
