Applied Turbulence Modelling in Marine Waters

Applied Turbulence Modelling in Marine Waters PDF Author: Hans Burchard
Publisher: Springer
ISBN: 3540454195
Category : Science
Languages : en
Pages : 224

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Book Description
The simulation of turbulent mixing processes in marine waters is one of the most pressing tasks in oceanography. It is rendered difficult by the various complex phenomena occurring in these waters like strong stratification, ex ternal and internal waves, wind generated turbulence, Langmuir circulation etc. The need for simulation methods is especially great in this area because the physical processes cannot be investigated in the laboratory. Tradition ally, empirical bulk type models were used in oceanography, which, however, cannot account for many of the complex physical phenomena occurring. In engineering, statistical turbulence models describing locally the turbulence mixing processes were introduced in the early seventies, such as the k E model which is still one of the most widely used models in Computational Fluid Dy namics. Soon after, turbulence models were applied more and more also in the atmospheric sciences, and here the k kL model of Mellor and Yamada became particularly popular. In oceanography, statistical turbulence mod els were introduced rather late, i. e. in the eighties, and mainly models were taken over from the fields mentioned above, with some adjustments to the problems occurring in marine waters. In the literature on turbulence model applications to oceanography problems controversial findings and claims are reported about the various models, creating also an uncertainty on how well the models work in marine water problems.

Applied Turbulence Modelling in Marine Waters

Applied Turbulence Modelling in Marine Waters PDF Author: Hans Burchard
Publisher: Springer
ISBN: 3540454195
Category : Science
Languages : en
Pages : 224

Get Book Here

Book Description
The simulation of turbulent mixing processes in marine waters is one of the most pressing tasks in oceanography. It is rendered difficult by the various complex phenomena occurring in these waters like strong stratification, ex ternal and internal waves, wind generated turbulence, Langmuir circulation etc. The need for simulation methods is especially great in this area because the physical processes cannot be investigated in the laboratory. Tradition ally, empirical bulk type models were used in oceanography, which, however, cannot account for many of the complex physical phenomena occurring. In engineering, statistical turbulence models describing locally the turbulence mixing processes were introduced in the early seventies, such as the k E model which is still one of the most widely used models in Computational Fluid Dy namics. Soon after, turbulence models were applied more and more also in the atmospheric sciences, and here the k kL model of Mellor and Yamada became particularly popular. In oceanography, statistical turbulence mod els were introduced rather late, i. e. in the eighties, and mainly models were taken over from the fields mentioned above, with some adjustments to the problems occurring in marine waters. In the literature on turbulence model applications to oceanography problems controversial findings and claims are reported about the various models, creating also an uncertainty on how well the models work in marine water problems.

Marine Turbulence

Marine Turbulence PDF Author: Helmut Z. Baumert
Publisher: Cambridge University Press
ISBN: 9780521837897
Category : Science
Languages : en
Pages : 664

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Book Description
This book gives a comprehensive overview of marine turbulence and mixing for students, scientists, engineers.

Egyptian Coastal Lakes and Wetlands: Part I

Egyptian Coastal Lakes and Wetlands: Part I PDF Author: Abdelazim M. Negm
Publisher: Springer
ISBN: 3319935909
Category : Science
Languages : en
Pages : 299

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Book Description
Egyptian coastal lakes and wetlands are among the most productive wetland ecosystems in the world. This volume explores their current status and how it can be maintained and improved. It describes the five Northern coastal lakes, their origin, physical and chemical properties and current development activities, and discusses the challenges facing these lakes, such as shrinking, pollution, degradation, and adaptive management. Further topics include hydrodynamics and modeling techniques, as well as strategies for the sustainable development of these valuable resources. The book closes with a concise summary of the conclusions and recommendations presented in the chapters. As such, it offers an invaluable resource for the academic community and postgraduate students, as well as for environmental managers and policymakers.

Introduction to the Physical and Biological Oceanography of Shelf Seas

Introduction to the Physical and Biological Oceanography of Shelf Seas PDF Author: John H. Simpson
Publisher: Cambridge University Press
ISBN: 1107377390
Category : Science
Languages : en
Pages : 465

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Book Description
In this exciting and innovative textbook, two leading oceanographers bring together the fundamental physics and biology of the coastal ocean in a quantitative but accessible way for undergraduate and graduate students. Shelf sea processes are comprehensively explained from first principles using an integrated approach to oceanography that helps build a clear understanding of how shelf sea physics underpins key biological processes in these environmentally sensitive regions. Using many observational and model examples, worked problems and software tools, the authors explain the range of physical controls on primary biological production and shelf sea ecosystems. Boxes throughout the book present extra detail for each topic and non-mathematical summary points are provided for physics sections, allowing students to develop an intuitive understanding. The book is fully supported by extensive online materials, including worked solutions to end-of-chapter exercises, additional homework/exam problems with solutions and simple MATLAB and FORTRAN models for running simulations.

Advanced Numerical Modeling and Data Assimilation Techniques for Tropical Cyclone Predictions

Advanced Numerical Modeling and Data Assimilation Techniques for Tropical Cyclone Predictions PDF Author: U.C. Mohanty
Publisher: Springer
ISBN: 9402408967
Category : Science
Languages : en
Pages : 762

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Book Description
This book deals primarily with monitoring, prediction and understanding of Tropical Cyclones (TCs). It was envisioned to serve as a teaching and reference resource at universities and academic institutions for researchers and post-graduate students. It has been designed to provide a broad outlook on recent advances in observations, assimilation and modeling of TCs with detailed and advanced information on genesis, intensification, movement and storm surge prediction. Specifically, it focuses on (i) state-of-the-art observations for advancing TC research, (ii) advances in numerical weather prediction for TCs, (iii) advanced assimilation and vortex initialization techniques, (iv) ocean coupling, (v) current capabilities to predict TCs, and (vi) advanced research in physical and dynamical processes in TCs. The chapters in the book are authored by leading international experts from academic, research and operational environments. The book is also expected to stimulate critical thinking for cyclone forecasters and researchers, managers, policy makers, and graduate and post-graduate students to carry out future research in the field of TCs.

Chaotic Flows

Chaotic Flows PDF Author: Oleg G. Bakunin
Publisher: Springer Science & Business Media
ISBN: 3642203507
Category : Science
Languages : en
Pages : 349

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Book Description
The book introduces readers to and summarizes the current ideas and theories about the basic mechanisms for transport in chaotic flows. Typically no single paradigmatic approach exists as this topic is relevant for fields as diverse as plasma physics, geophysical flows and various branches of engineering. Accordingly, the dispersion of matter in chaotic or turbulent flows is analyzed from different perspectives. Partly based on lecture courses given by the author, this book addresses both graduate students and researchers in search of a high-level but approachable and broad introduction to the topic.

Guide to Process Based Modeling of Lakes and Coastal Seas

Guide to Process Based Modeling of Lakes and Coastal Seas PDF Author: Anders Omstedt
Publisher: Springer Science & Business Media
ISBN: 364217728X
Category : Science
Languages : en
Pages : 274

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Book Description
Mounting concern about the influence of humans on climate and environmental conditions has increased the need for multi-disciplinary modeling efforts, including systems such as oceans, costal seas, lakes, land surfaces, ice, rivers and atmosphere. This unique book will stimulate students and researchers to develop their modeling skills and make model codes and data transparent to other research groups. The book uses the general equation solver PROBE to introduce process oriented numerical modeling and to build understanding of the subject step by step. PROBE is a general equation solver for one-dimensional transient, or two-dimensional steady, boundary layers. By the construction of nets of sub-basins the book illustrates how the process based modeling can be extended, complementing three-dimensional modeling. The equation solver has been used in many applications, particularly in Sweden and Finland with their numerous lakes, archipelago seas, fjords, and coastal zones. It has also been used for process studies in the Arctic and in the Mediterranean Sea and the approach is general for applications in many other environmental applications.... more on http:// springer.com/978-3-642-17727-9.

MRGO Ecosystem Restoration Plan Feasibility Study

MRGO Ecosystem Restoration Plan Feasibility Study PDF Author: United States. Office of the Assistant Secretary of the Army (Civil Works)
Publisher:
ISBN:
Category : Borgne, Lake (La.)
Languages : en
Pages : 1148

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Book Description


Soil, Agriculture, and Ecosystem Modeling

Soil, Agriculture, and Ecosystem Modeling PDF Author: Owais Bashir
Publisher: CRC Press
ISBN: 1003837786
Category : Technology & Engineering
Languages : en
Pages : 318

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Book Description
Soil and ecosystem modeling is crucial for managing and comprehending ecological processes and should be required for all studies focusing on agriculture systems, environmental management, environmental sciences, and ecology. Offering an array of modeling strategies that include applications of machine learning, deep learning, and other AI methods, the book explores and demonstrates soil, agriculture, and ecosystem modeling for fostering smart sustainable agricultural practices. The volume takes into account the mechanisms of climate change as well as the challenges and hazards related to soil health, providing insight into long-term and sophisticated sustainable agriculture, crop protection and management, soil carbon sequestration, and ecology preservation.

Treatise on Estuarine and Coastal Science

Treatise on Estuarine and Coastal Science PDF Author:
Publisher: Academic Press
ISBN: 0080878857
Category : Science
Languages : en
Pages : 4604

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Book Description
The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics