An expert review of recent progress in the study of turbulent
flows with a focus on recently identified organized
structures.
This book reviews the 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. These coherent flow
structures can include eddies or vortices at the scale of
individual grains, through structures that scale with the flow
depth in rivers or estuaries, to the large-scale structure of flows
at the morphological or landform scale. These flow structures
are of wide interest to the scientific community because they play
an important role in fluid dynamics and influence the
transport, erosion and deposition of sediment and
pollutants in a wide variety of fluid flow
environments.
Scientific knowledge of these structures has improved greatly
over the past 20 years as computational fluid dynamics has
come to play an increasing important part in building our
understanding of coherent flow structures across a broad range
of scales.
Chapters comprise a series of major, invited papers and a
selection of the most novel, innovative papers presented at
the second Coherent Flow Structures Conference held August 3-5,
2011 at Simon Fraser University in Burnaby, British
Columbia.
Chapters focus on six major themes:
* Dynamics of coherent flow structures (CFS) in geophysical
flows
* Interaction of turbulent flows, vegetation and ecological
habitats
* Coherent structure of atmospheric flows
* Numerical modeling of coherent flow structures
* Turbulence in open channel flows
* Coherent flow structures, sediment transport and morphological
feedbacks.
Daftar Isi
List of Contributors, vii
Preface, xi
About the Companion Website, xiii
1 What is a Coherent Flow Structure in Geophysical Flow? 1
Jeremy G. Venditti, Richard J. Hardy, Michael Church, & James L. Best
2 Structure of Turbulent Boundary Layers 17
Ronald J. Adrian
3 Structural Attributes of Turbulent Flow over a Complex Topography 25
Ricardo Mejia-Alvarez, Julio M. Barros, & Kenneth T. Christensen
4 Coherent Flow Structures in the Pore Spaces of Permeable Beds underlying a Unidirectional Turbulent Boundary Layer: A Review and some New Experimental Results 43
Gianluca Blois, James L. Best, Kenneth T. Christensen, Richard J. Hardy, & Gregory H. Sambrook Smith
5 Instabilities in Stratified Shear Flow 63
Gregory A. Lawrence, Edmund W. Tedford, & Jeffrey R. Carpenter
6 Scalar Turbulence within the Canopy Sublayer 73
Gabriel G. Katul, Daniela Cava, Mario Siqueira, & Davide Poggi
7 On the Structure of Wall Turbulence in the Thermally Neutral Atmospheric Surface Layer 97
Michele Guala, Jeff Le Hew, Meredith Metzger, & Beverley J. Mc Keon
8 Critical Reflections on the Coherent Flow Structures Paradigm in Aeolian Geomorphology 111
Bernard O. Bauer, Ian J. Walker, Andreas C.W. Baas, Derek W.T. Jackson, Cheryl Mc Kenna Neuman, Giles F.S. Wiggs, & Patrick A. Hesp
9 Coherent Flow Structures in Vegetated Channels 135
Heidi Nepf, Jeffrey Rominger, & Lijun Zong
10 Coherent Eddy Structures over Plant Canopies 149
Roger H. Shaw, Edward G. Patton, & John J. Finnigan
11 SPIV Analysis of Coherent Structures in a Vegetation Canopy Model Flow 161
Laurent Perret & Tony Ruiz
Tentang Penulis
Jeremy G. Venditti, Assistant Professor, Simon Fraser University, Department of Geography, Burnaby, British Columbia, Canada.
James L. Best, Threet Professor, Departments of Geology and Geography, University of Illinois, Urbana, IL, USA.
Michael Church, Professor emeritus, Department of Geography, The University of British Columbia, Vancouver, British Columbia, Canada.
Richard J. Hardy, Lecturer, Department of Geography, Durham University, UK.
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