The Cell Method (CM) is a computational tool that maintains critical multidimensional attributes of physical phenomena in analysis. This information is neglected in the differential formulations of the classical approaches of finite element, boundary element, finite volume, and finite difference ana
The cell method : a purely algebraic computational method in physics and engineering
โ Scribed by Ferretti, Elena
- Publisher
- Momentum Press
- Year
- 2014
- Tongue
- English
- Leaves
- 246
- Category
- Library
No coin nor oath required. For personal study only.
โฆ Synopsis
The Cell Method (CM) is a computational tool that maintains critical multidimensional attributes of physical phenomena in analysis. This information is neglected in the differential formulations of the classical approaches of finite element, boundary element, finite volume, and finite difference analysis, often leading to numerical instabilities and spurious results. This book highlights the central theoretical concepts of the CM that preserve a more accurate and precise representation of the geometric and topological features of variables for practical problem solving. Important applications occur in fields such as electromagnetics, electrodynamics, solid mechanics and fluids. CM addresses non-locality in continuum mechanics, an especially important circumstance in modeling heterogeneous materials. Professional engineers and scientists, as well as graduate students, are offered: * A general overview of physics and its mathematical descriptions; * Guidance on how to build direct, discrete formulations; * Coverage of the governing equations of the CM, including nonlocality; * Explanations of the use of Tonti diagrams; and * References for further reading
โฆ Table of Contents
Content: 1. A comparison between algebraic and differential formulations under the geometrical and topological viewpoints --
1.1 Relationship between how to compute limits and numerical formulations in computational physics --
1.2 Field and global variables --
1.3 Set functions in physics --
1.4 A comparison between the cell method and the discrete methods. 2. Algebra and the geometric interpretation of vector spaces --
2.1 The exterior algebra --
2.2 The geometric algebra. 3. Algebraic topology as a tool for treating global variables with the CM --
3.1 Some notions of algebraic topology --
3.2 Simplices and simplicial complexes --
3.3 Faces and cofaces --
3.4 Some notions of the graph theory --
3.5 Boundaries, coboundaries, and the incidence matrices --
3.6 Chains and cochains complexes, boundary and coboundary processes --
3.7 Discrete p-forms --
3.8 Inner and outer orientations of time elements. 4. Classification of the global variables and their relationships --
4.1 Configuration, source, and energetic variables --
4.2 The mathematical structure of the classification diagram --
4.3 The incidence matrices of the two cell complexes in space domain --
4.4 Primal and dual cell complexes in space/time domain and their incidence matrices. 5. The structure of the governing equations in the cell method --
5.1 The role of the coboundary process in the algebraic formulation --
5.2 How to compose the fundamental equation of a physical theory --
5.3 Analogies in physics --
5.4 Physical theories with reversible constitutive laws --
5.5 The choice of primal and dual cell complexes in computation. 6. The problem of the spurious solutions in computational physics --
6.1 Stability and instability of the numerical solution --
6.2 The need for non-local models in quantum physics --
6.3 Non-local computational models in differential formulation --
6.3.1 Continuum mechanics --
6.4 Algebraic non-locality of the CM.
๐ SIMILAR VOLUMES
The interplay between computation and many areas of algebra is a natural phenomenon in view of the algorithmic character of the latter. The existence of inexpensive but powerful computational resources has enhanced these links by the opening up of many new areas of investigation in algebra.
<P>From the reviews: </P> <P>"... Many parts of the book can be read by anyone with a basic abstract algebra course... it was one of the author's intentions to equip students who are interested in computational problems with the necessary algebraic background in pure mathematics and to encourage the