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1. |
Record Nr. |
UNINA9911154540603321 |
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Autore |
Aronin Larissa |
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Titolo |
Multilingualism / / Larissa Aronin, David Singleton |
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Pubbl/distr/stampa |
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Amsterdam ; ; Philadelphia, : John Benjamins Pub. Co., 2012 |
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ISBN |
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9786613469328 |
9781283469326 |
1283469324 |
9789027274984 |
9027274983 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (240 p.) |
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Collana |
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Impact: studies in language and society ; ; v. 30 |
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Altri autori (Persone) |
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SingletonD. M (David Michael) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Multilingualism; Editorial page; Title page; LCC Data; Dedication page; Table of contents; Acknowledgments; Chapter 1. Introduction; What this book is about; What is multilingualism? Terminology and definitions; The structure of the book; Chapter 2. Multilingualism: Some preliminary considerations; Human language, communication in other species and multilingualism; Language as a unique human possession; Use of the vocal-auditory channel; Arbitrariness; Semanticity; Cultural transmission; Duality (or double articulation); Displacement; Structure dependence |
Creativity (or open-endedness or productivity)Language as a tool and language as ability; Societal awareness of language and languages; Chapter 3. Multilingualism as a new linguistic dispensation; The globalization phenomenon; Globalization and language use; Time, space and technology; Mobility and flux, borders and exclusions; Recognition of the ubiquity of contemporary multilingualism; The new linguistic dispensation; Scale and significance; Two trends; The properties and developmental directions of the new linguistic dispensation; Suffusiveness; Complexity; Liminality |
Developments characterizing the new linguistic dispensationShifts in norms; New focal issues; Expansion of affordances; Ambience of |
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awareness; Malleability; Concluding summary; Chapter 4. The Dominant Language Constellation (DLC); What is a Dominant Language Constellation?; Language repertoire versus DLC; How many languages constitute a DLC?; The characteristic features of a DLC; Theoretical and practical dimensions of deploying the construct of DLC; Possible DLC-based research directions; Co-terms; Concluding summary; Chapter 5. Multilinguality and personal development; Introductory |
Individual multilingualism and societal factorsTerminology and concepts referring to individual aspects of multilingualism; Multilinguality; Characteristics of users of a multiplicity of languages; Models of multilingualism; Activation/inhibition; Language mode; Factors involved in multilingual acquisition; The dynamic model of multilingualism; An ecological perspective; Third language acquisition and tertiary didactics; Individual differences in multilinguals; Factors leading to individual differences; Complexity and diversity with reference to multilingual individuals |
Dominant Language Constellations, individual repertoires and personal life trajectories: Emerging teConcluding summary; Chapter 6. Language development in multilingual conditions; Language development under bilingual and multilingual conditions; The contexts of multilingual language development; Simultaneous and sequential multilingual development and outcomes; The process of multilingual acquisition; Separation or integration?; The advantages/disadvantages of multilinguality; Concluding summary |
Chapter 7. Classifications of multilinguals, multilingual contexts and languages in multilingual env |
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Sommario/riassunto |
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This book is an authoritative account of multilingualism in the present era, a phenomenon affecting a vast number of communities, thousands of languages and millions of language users. The book's focus is specifically on the knowledge and use of multiple languages, but its treatment of the topic is very wide-ranging. It deals with both bilingualism and polyglottism, at the level of the individual speaker as well as at the societal level. The volume addresses not only linguistic facets of multilingualism but also multilingualism's cultural, sociological, educational, and psychological dimension |
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2. |
Record Nr. |
UNINA9910965430303321 |
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Autore |
Tu Jiyuan |
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Titolo |
Computational fluid dynamics : a practical approach / / Jiyuan Tu, Guan-Heng Yeoh, Chaoqun Liu |
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Pubbl/distr/stampa |
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Elsevier Science & Technology, 2012 |
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ISBN |
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Edizione |
[2nd ed.] |
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Descrizione fisica |
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1 online resource (457 p.) |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Fluid dynamics |
Heat - Transmission |
Turbulence |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Front Cover -- Computational Fluid Dynamics: A Practical Approach -- Copyright -- Contents -- Preface to the First Edition -- Preface to the Second Edition -- Acknowledgments -- Chapter 1: Introduction -- 1.1. What is computational fluid dynamics? -- 1.2. Advantages of computational fluid dynamics -- 1.3. Application of computational fluid dynamics -- 1.3.1. As a Research Tool -- 1.3.2. As an Educational Tool in Basic Thermal-Fluid Science -- 1.3.3. As a Design Tool -- 1.3.4. Aerospace -- 1.3.5. Automotive Engineering -- 1.3.6. Biomedical Science and Engineering -- 1.3.7. Chemical and Mineral Processing -- 1.3.8. Civil and Environmental Engineering -- 1.3.9. Metallurgy -- 1.3.10. Nuclear Safety -- 1.3.11. Power Generation -- 1.3.12. Sports -- 1.4. The future of computational fluid dynamics -- 1.5. Summary -- Review questions -- Chapter 2: CFD Solution Procedure-A Beginning -- 2.1. Introduction -- 2.1.1. Shareware CFD -- 2.1.2. Commercial CFD -- 2.2. Problem setup-pre-process -- 2.2.1. Creation of Geometry-Step 1 -- 2.2.2. Mesh Generation-Step 2 -- 2.2.3. Selection of Physics and Fluid Properties-Step 3 -- 2.2.4. Specification of Boundary Conditions-Step 4 -- 2.3. Numerical solution-CFD solver -- 2.3.1. Initialization and Solution Control-Step 5 -- 2.3.2. Monitoring Convergence-Step 6 |
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-- 2.4. Result Report and Visualization-Post-process -- 2.4.1. X-Y Plots -- 2.4.2. Vector Plots -- 2.4.3. Contour Plots -- 2.4.4. Other Plots -- 2.4.5. Data Report and Output -- 2.4.6. Animation -- 2.5. Summary -- Review questions -- Chapter 3: Governing Equations for CFD-Fundamentals -- 3.1. Introduction -- 3.2. The continuity equation -- 3.2.1. Mass Conservation -- 3.2.2. Physical Interpretation -- 3.2.3. Comments -- 3.3. The momentum equation -- 3.3.1. Force Balance -- 3.3.2. Physical Interpretation -- 3.3.3. Comments -- 3.4. The energy equation. |
3.4.1. Energy Conservation -- 3.4.2. Physical Interpretation -- 3.4.3. Comments -- 3.5. The additional equations for turbulent flow -- 3.5.1. What Is Turbulence? -- 3.5.2. k-ε Two-Equation Turbulence Model -- 3.5.3. Comments -- 3.6. Generic form of the governing equations for CFD -- 3.7. Physical boundary conditions of the governing equations -- 3.8. Summary -- Review questions -- Chapter 4: CFD Techniques-The Basics -- 4.1. Introduction -- 4.2. Discretization of governing equations -- 4.2.1. Finite-Difference Method -- 4.2.2. Finite-Volume Method -- 4.2.3. Finite-Element Method -- 4.2.4. Spectral Method -- 4.3. Converting governing equations to algebraic equation system -- 4.3.1. Finite-Difference Method -- 4.3.2. Finite-Volume Method -- 4.3.3. Comparison of the Finite-Difference and Finite-Volume Discretizations -- 4.4. Numerical solutions to algebraic equations -- 4.4.1. Direct Methods -- 4.4.2. Iterative Methods -- 4.5. Pressure-velocity coupling-``simple´´ scheme -- 4.6. Multi-grid method -- 4.7. Summary -- Review questions -- Chapter 5: CFD Solution Analysis-Essentials -- 5.1. Introduction -- 5.2. Consistency -- 5.3. Stability -- 5.4. Convergence -- 5.4.1. What Is Convergence? -- 5.4.2. Residuals and Convergence Tolerance -- 5.4.3. Convergence Difficulty and Using Under-Relaxation -- 5.4.4. Accelerating Convergence -- 5.5. Accuracy -- 5.5.1. Source of Solution Errors -- 5.5.1.1. Discretization Error -- 5.5.1.2. Round-Off Error -- 5.5.1.3. Iteration or Convergence Error -- 5.5.1.4. Physical Modeling Error -- 5.5.1.5. Human Error -- 5.5.2. Controlling the Solution Errors -- 5.5.3. Verification and Validation -- 5.6. Efficiency -- 5.7. Case studies -- 5.7.1. Test Case A: Channel Flow -- 5.7.2. Test Case B: Flow over a 90o Bend -- 5.8. Summary -- Review questions -- Chapter 6: Practical Guidelines for CFD Simulation and Analysis. |
6.1. Introduction -- 6.2. Guidelines on grid generation -- 6.2.1. Structured Mesh -- 6.2.2. Body-Fitted Mesh -- 6.2.3. Unstructured Mesh -- 6.2.4. Comments on Mesh Topology -- 6.2.5. Guidelines for Grid Quality and Grid Design -- 6.2.6. Local Refinement and Solution Adaptation -- 6.3. Guidelines for boundary conditions -- 6.3.1. Overview of Setting Boundary Conditions -- 6.3.2. Guidelines for Inlet Boundary Conditions -- 6.3.3. Guidelines for Outlet Boundary Conditions -- 6.3.4. Guidelines for Wall Boundary Conditions -- 6.3.5. Guidelines for Symmetry and Periodic Boundary Conditions -- 6.4. Guidelines for turbulence modeling -- 6.4.1. Overview of Turbulence-Modeling Approaches -- 6.4.2. Strategy for Selecting Turbulence Models -- 6.4.3. Near-Wall Treatments -- 6.4.4. Setting Boundary Conditions -- 6.4.5. Test Case: Assessment of Two-Equation Turbulence Modeling for Hydrofoil Flows -- 6.5. Summary -- Review questions -- Chapter 7: Some Applications of CFD with Examples -- 7.1. Introduction -- 7.2. To assist in the design process-as a design tool -- 7.2.1. Indoor Air-Flow Distribution -- 7.3. To enhance understanding-as a research tool -- 7.3.1. Gas-Particle Flow in a 90o Bend -- 7.4. Other important applications -- 7.4.1. Heat Transfer Coupled with Fluid Flow -- 7.4.1.1. Heat Exchanger -- 7.4.1.2. Conjugate and Radiation Heat Transfer11The materials in this section |
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were provided by David Wassink and Mark Ho, wor -- 7.4.2. A Buoyant Free-Standing Fire -- 7.4.3. Flow over Vehicle Platoon -- 7.4.4. Air/Particle Flow in the Human Nasal Cavity -- 7.4.5. High-Speed Flows -- 7.4.5.1. Supersonic Flow over a Flat Plate -- 7.4.5.2. Subsonic and Supersonic Flows over a Wing -- 7.5. Summary -- Review questions -- Chapter 8: Some Advanced Topics in CFD -- 8.1. Introduction -- 8.2. Advances in numerical methods and techniques -- 8.2.1. Incompressible Flows. |
8.2.2. Compressible Flows -- 8.2.2.1. High-Resolution Schemes -- 8.2.2.2. Adaptive Meshing -- 8.2.3. Moving Grids -- 8.2.4. Multi-Grid Methods -- 8.2.5. Parallel Computing -- 8.2.6. Immersed Boundary Methods -- 8.3. Advances in computational models -- 8.3.1. Direct Numerical Simulation -- 8.3.2. Large Eddy Simulation (LES) -- 8.3.3. RANS-LES Coupling for Turbulent Flows -- 8.3.4. Multi-Phase Flows -- 8.3.5. Combustion -- 8.3.6. Fluid-Structure Interaction -- 8.3.7. Physiological Fluid Dynamics -- 8.4. Other numerical approaches for CFD -- 8.4.1. Lattice Boltzmann Method -- 8.4.2. Monte-Carlo Method -- 8.4.3. Particle Methods -- 8.4.4. Discrete Element Method -- 8.5. Summary -- Review questions -- Appendix A: Full Derivation of Conservation Equations -- Appendix B: Upwind Schemes -- Appendix C: Explicit and Implicit Methods -- Appendix D: Learning Program -- Learning Program for a One-Semester CFD Course -- Appendix E: CFD Assignments and Guideline for CFD Project -- Assignment 1 -- Background and Aim -- Problem Description -- Instructions -- Assignment 2 -- Background and Aim -- Problem Description -- Single-Car Configuration -- Instructions -- Drafting Configuration -- Instructions -- Assignment 3 -- Background and Aim -- Problem Description -- Instructions -- Project Guideline -- Aim -- Objectives -- Example-CFD Project proposal prepared by the student -- Introduction -- Scope -- Objectives -- Other Topics for CFD Projects -- CFD Project A: CFD Simulation of Turbulent Flow over a Backward-Facing Step -- Background -- Objectives -- Problem Description -- Required Discussions -- CFD Project B: CFD Simulation of Pickup Trucks with Open/Closed Beds -- Background -- Objectives -- Problem Description -- Required Discussions -- Addendum -- CFD Project C: Investigation of Cooling Electronic Components within a Computer -- Background -- Objectives. |
Problem Description -- Required Discussions -- References -- Index. |
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Sommario/riassunto |
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An introduction to CFD fundamentals and using commercial CFD software to solve engineering problems, designed for the wide variety of engineering students new to CFD, and for practicing engineers learning CFD for the first time. Combining an appropriate level of mathematical background, worked examples, computer screen shots, and step by step processes, this book walks the reader through modeling and computing, as well as interpreting CFD results. The first book in the field aimed at CFD users rather than developers. New to this edition: A more c |
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