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Coherent flow structures at Earth's surface /
"The book will review recent progress in the study of the turbulent flows that sculpt the Earth's surface, focusing in particular on the organized structures that have been identified in recent years within turbulent flows"--
| Clasificación: | Libro Electrónico |
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| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Hoboken, NJ :
Wiley, Blackwell,
©2013.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Coherent Flow Structures at Earth's Surface; Contents; List of Contributors; Preface; About the Companion Website; 1 What is a Coherent Flow Structure in Geophysical Flow?; 1.1 Introduction; 1.2 From random turbulence to coherent flow structures; 1.3 Coherent flow structures in low Reynolds-number flows over smooth boundaries; 1.4 Large-scale, high Reynolds-number coherent flow structures; 1.5 Does scale matter?; 1.6 What is the difference between the mean flow and CFS?; 1.7 Coherent flow structures within geophysical flows: future research needs; References.
- 2 Structure of Turbulent Boundary Layers2.1 Introduction; 2.2 Eddy structures; 2.2.1 Near-wall quasi-streamwise vortices; 2.2.2 Hairpins and hairpin vortex packets; 2.2.3 Large-scale motions; 2.2.4 Very large-scale motions; 2.3 Interactions of eddies on different scales; 2.4 Extracting coherent structure from geophysical flows; 2.5 Conclusions; 2.6 Acknowledgements; References; 3 Structural Attributes of Turbulent Flow over a Complex Topography; 3.1 Introduction; 3.2 Experiments; 3.3 Results; 3.3.1 Instantaneous velocity fields; 3.3.2 Single-point statistics.
- 3.3.3 Two-point velocity correlations3.4 Discussion; 3.5 Conclusions; 3.6 Acknowledgements; References; 4 Coherent Flow Structures in the Pore Spaces of Permeable Beds underlying a Unidirectional Turbulent Boundary Layer: A Review and some New Experimental Results; 4.1 Introduction; 4.2 Flow across a permeable boundary layer: background; 4.3 Boundary layer structure in the freeflow region over permeable beds; 4.3.1 Macroscopic effects; 4.3.2 Turbulence structure in the freeflow; 4.4 Flow within the transition layer of permeable beds; 4.4.1 Conceptual models.
- 4.4.2 Experimental observations of coherent flow structures in the transition layer and their evolution4.4.3 Turbulence penetration into the bed: preliminary quantification using a novel refractive index matching (RIM) experimental approach; 4.5 Discussion; 4.6 Summary and challenges for future work; 4.7 Acknowledgements; Notation; References; 5 Instabilities in Stratified Shear Flow; 5.1 Introduction to Kelvin-Helmholtz and Holmboe instabilities; 5.2 One-sidedness; 5.3 Application of the Taylor-Goldstein equation to asymmetric profiles; 5.4 Mixing; 5.5 Field observations; 5.6 Conclusions.