Numerical Time-Dependent Partial Differential Equations for Scientists and Engineers, Volume 213 (Mathematics in Science and Engineering)
Moysey Brio, Gary M. Webb, Aramais R. Zakharian
- 出版商: Academic Press
- 出版日期: 2010-08-06
- 售價: $5,690
- 貴賓價: 9.5 折 $5,406
- 語言: 英文
- 頁數: 312
- 裝訂: Hardcover
- ISBN: 0121339815
- ISBN-13: 9780121339814
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商品描述
It is the first text that in addition to standard convergence theory treats other necessary ingredients for successful numerical simulations of physical systems encountered by every practitioner. The book is aimed at users with interests ranging from application modeling to numerical analysis and scientific software development. It is strongly influenced by the authors research in in space physics, electrical and optical engineering, applied mathematics, numerical analysis and professional software development. The material is based on a year-long graduate course taught at the University of Arizona since 1989. The book covers the first two-semesters of a three semester series. The second semester is based on a semester-long project, while the third semester requirement consists of a particular methods course in specific disciplines like computational fluid dynamics, finite element method in mechanical engineering, computational physics, biology, chemistry, photonics, etc.
The first three chapters focus on basic properties of partial differential equations, including analysis of the dispersion relation, symmetries, particular solutions and instabilities of the PDEs; methods of discretization and convergence theory for initial value problems. The goal is to progress from observations of simple numerical artifacts like diffusion, damping, dispersion, and anisotropies to their analysis and management technique, as it is not always possible to completely eliminate them.
In the second part of the book we cover topics for which there are only sporadic theoretical results, while they are an integral part and often the most important part for successful numerical simulation. We adopt a more heuristic and practical approach using numerical methods of investigation and validation. The aim is teach students subtle key issues in order to separate physics from numerics. The following topics are addressed: Implementation of transparent and absorbing boundary conditions; Practical stability analysis in the presence of the boundaries and interfaces; Treatment of problems with different temporal/spatial scales either explicit or implicit; preservation of symmetries and additional constraints; physical regularization of singularities; resolution enhancement using adaptive mesh refinement and moving meshes.
The first three chapters focus on basic properties of partial differential equations, including analysis of the dispersion relation, symmetries, particular solutions and instabilities of the PDEs; methods of discretization and convergence theory for initial value problems. The goal is to progress from observations of simple numerical artifacts like diffusion, damping, dispersion, and anisotropies to their analysis and management technique, as it is not always possible to completely eliminate them.
In the second part of the book we cover topics for which there are only sporadic theoretical results, while they are an integral part and often the most important part for successful numerical simulation. We adopt a more heuristic and practical approach using numerical methods of investigation and validation. The aim is teach students subtle key issues in order to separate physics from numerics. The following topics are addressed: Implementation of transparent and absorbing boundary conditions; Practical stability analysis in the presence of the boundaries and interfaces; Treatment of problems with different temporal/spatial scales either explicit or implicit; preservation of symmetries and additional constraints; physical regularization of singularities; resolution enhancement using adaptive mesh refinement and moving meshes.
- Self contained presentation of key issues in successful numerical simulation
- Accessible to scientists and engineers with diverse background
- Provides analysis of the dispersion relation, symmetries, particular solutions and instabilities of the partial differential equations
商品描述(中文翻譯)
這是第一本除了標準收斂理論外,還探討成功數值模擬物理系統所需的其他要素的文本,這些要素是每位從業者都會遇到的。本書的目標讀者是對應用建模、數值分析和科學軟體開發感興趣的使用者。該書深受作者在空間物理學、電氣與光學工程、應用數學、數值分析及專業軟體開發方面研究的影響。這些材料基於自1989年以來在亞利桑那大學教授的一年制研究生課程。本書涵蓋了三學期系列課程的前兩個學期。第二學期基於一個學期的專案,而第三學期的要求則包括特定學科的特定方法課程,如計算流體力學、機械工程中的有限元素法、計算物理學、生物學、化學、光子學等。
前三章專注於偏微分方程的基本性質,包括色散關係的分析、對稱性、特解和偏微分方程的不穩定性;初值問題的離散化方法和收斂理論。目標是從觀察簡單的數值伪影(如擴散、阻尼、色散和各向異性)進展到它們的分析和管理技術,因為並不總是能夠完全消除這些伪影。
在本書的第二部分,我們涵蓋了只有零星理論結果的主題,這些主題是成功數值模擬的不可或缺部分,且往往是最重要的部分。我們採用更具啟發性和實用的方法,使用數值方法進行調查和驗證。目的是教導學生微妙的關鍵問題,以便將物理與數值區分開來。以下主題將被討論:透明和吸收邊界條件的實現;在邊界和界面存在下的實用穩定性分析;處理具有不同時間/空間尺度的問題,無論是顯式還是隱式;對稱性和附加約束的保持;奇異性的物理正則化;使用自適應網格細化和移動網格的解析度增強。
- 獨立呈現成功數值模擬中的關鍵問題
- 對於背景多樣的科學家和工程師可輕鬆理解
- 提供偏微分方程的色散關係、對稱性、特解和不穩定性的分析