The Formation Of Patterns In Subaqueous Sediment
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| Author | : Kidanemariam, Aman Ghebremichael |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 180 |
| Release | : 2016-11-14 |
| Genre | : Engineering (General). Civil engineering (General) |
| ISBN | : 3731505320 |
This book investigates the formation of subaqueous patterns by means of high-fidelity numerical simulations which resolve all the relevant scales of the flow and the sediment bed. This is required to provide a space- and time-resolved information on the flow field and the sediment bed. Secondly, detailed analysis of the generated data allows to address the different governing mechanisms involved in the formation of patterns as well as to access the validity of various existing models.
| Author | : Aman Ghebremichael Kidanemariam |
| Publisher | : |
| Total Pages | : 172 |
| Release | : 2020-10-09 |
| Genre | : Science |
| ISBN | : 9781013280214 |
This book investigates the formation of subaqueous patterns by means of high-fidelity numerical simulations which resolve all the relevant scales of the flow and the sediment bed. This is required to provide a space- and time-resolved information on the flow field and the sediment bed. Secondly, detailed analysis of the generated data allows to address the different governing mechanisms involved in the formation of patterns as well as to access the validity of various existing models. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
| Author | : Scherer, Markus Maximilian |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 348 |
| Release | : 2024-06-19 |
| Genre | : |
| ISBN | : 3731513188 |
The origin of secondary currents and subaqueous sediment patterns in natural rivers is analysed from first principles. For this purpose, simulations of sediment transport in canonical turbulent open channel flows are performed using a numerical technique that resolves all relevant flow scales and the dynamics of the individual sand grains. The high-fidelity datasets reveal the fundamental importance of individual coherent structures for the development of sediment patterns and secondary flows.
| Author | : Shankar Subramaniam |
| Publisher | : Academic Press |
| Total Pages | : 588 |
| Release | : 2022-10-20 |
| Genre | : Technology & Engineering |
| ISBN | : 0323901344 |
Modelling Approaches and Computational Methods for Particle-laden Turbulent Flows introduces the principal phenomena observed in applications where turbulence in particle-laden flow is encountered while also analyzing the main methods for analyzing numerically. The book takes a practical approach, providing advice on how to select and apply the correct model or tool by drawing on the latest research. Sections provide scales of particle-laden turbulence and the principal analytical frameworks and computational approaches used to simulate particles in turbulent flow. Each chapter opens with a section on fundamental concepts and theory before describing the applications of the modelling approach or numerical method. Featuring explanations of key concepts, definitions, and fundamental physics and equations, as well as recent research advances and detailed simulation methods, this book is the ideal starting point for students new to this subject, as well as an essential reference for experienced researchers. - Provides a comprehensive introduction to the phenomena of particle laden turbulent flow - Explains a wide range of numerical methods, including Eulerian-Eulerian, Eulerian-Lagrange, and volume-filtered computation - Describes a wide range of innovative applications of these models
| Author | : Krayer, Michael Werner Tobias |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 290 |
| Release | : 2023-09-11 |
| Genre | : |
| ISBN | : 3731513102 |
The transport of bacteria in turbulent river-like environments is addressed, where bacterial populations are frequently encountered attached to solids. This transport mode is investigated by studying the transient settling of heavy particles in turbulent channel flows featuring sediment beds. A numerical method is used to fully resolve turbulence and finite-size particles, which enables the assessment of the complex interplay between flow structures, suspended solids and river sediment.
| Author | : Patrick H. Lineberger |
| Publisher | : |
| Total Pages | : 154 |
| Release | : 1975 |
| Genre | : Marine sediment |
| ISBN | : |
Analysis of sediment cores from an area of the eastern Central Pacific basin revealed varied characteristics of the cores and associated acoustical properties of the sediments that enabled the study area to be divided into five provinces. Two of the provinces, one consisting of acoustically highly transparent siliceous ooze and the other of highly stratified calcareous ooze, are separated by a third, a siliceous-calcareous transition zone. A fourth province consists of partially eroded, highly stratified sediments of Tertiary age which are unconformably overlain by a thin, transparent siliceous ooze of Quaternary age. The fifth province consists of channels arranged in a distributary-like pattern that contain highly stratified sediments incised into surrounding transparent siliceous sediments. Surface sediment distribution was generally consistent with the calcite compensation depth of about 5000 meters.
| Author | : Giovanni Seminara |
| Publisher | : Firenze University Press |
| Total Pages | : 380 |
| Release | : 2024-03-15 |
| Genre | : Technology & Engineering |
| ISBN | : |
This monograph presents the mechanistic foundations of the theory of Morhodynamics, a discipline that investigates the shape of the erodible boundary of natural water bodies. We focus on the fluvial Morphodynamics of straight erodible channels, providing the basis for subsequent extensions to meandering rivers (treated in the companion monograph 2 of this series) and braided rivers. We present basic notions on the Mechanics of Turbulent Flows and Sediment Transport in straight open channels with mobile beds. We then investigate their morphodynamic equilibrium and its instability, that leads to the formation of a variety of bedforms observed in natural rivers. In particular, fluvial bars will deserve special attention as the fundamental building block of large scale fluvial patterns.
| Author | : Nicola Scarselli |
| Publisher | : Elsevier |
| Total Pages | : 896 |
| Release | : 2020-06-17 |
| Genre | : Technology & Engineering |
| ISBN | : 0444641351 |
Regional Geology and Tectonics: Principles of Geologic Analysis, 2nd edition is the first in a three-volume series covering Phanerozoic regional geology and tectonics. The new edition provides updates to the first edition's detailed overview of geologic processes, and includes new sections on plate tectonics, petroleum systems, and new methods of geological analysis. This book provides both professionals and students with the basic principles necessary to grasp the conceptual approaches to hydrocarbon exploration in a wide variety of geological settings globally. - Discusses in detail the principles of regional geological analysis and the main geological and geophysical tools - Captures and identifies the tectonics of the world in detail, through a series of unique geographic maps, allowing quick access to exact tectonic locations - Serves as the ideal introductory overview and complementary reference to the core concepts of regional geology and tectonics offered in volumes 2 and 3 in the series
| Author | : Rai, Mritunjay |
| Publisher | : IGI Global |
| Total Pages | : 332 |
| Release | : 2024-02-26 |
| Genre | : Psychology |
| ISBN | : |
In the realm of analyzing human emotions through Artificial Intelligence (AI), a myriad of challenges persist. From the intricate nuances of emotional subtleties to the broader concerns of ethical considerations, privacy implications, and the ongoing battle against bias, AI faces a complex landscape when venturing into the understanding of human emotions. These challenges underscore the intricate balance required to navigate the human psyche with accuracy. The book, Using Machine Learning to Detect Emotions and Predict Human Psychology, serves as a guide for innovative solutions in the field of emotion detection through AI. It explores facial expression analysis, where AI decodes real-time emotions through subtle cues such as eyebrow movements and micro-expressions. In speech and voice analysis, the book unveils how AI processes vocal nuances to discern emotions, considering elements like tone, pitch, and language intricacies. Additionally, the power of text analysis is of great importance, revealing how AI extracts emotional tones from diverse textual communications. By weaving these systems together, the book offers a holistic solution to the challenges faced by AI in understanding the complex landscape of human emotions.
| Author | : Derek Jackson |
| Publisher | : Elsevier |
| Total Pages | : 814 |
| Release | : 2020-05-20 |
| Genre | : Science |
| ISBN | : 0081029276 |
Sandy beaches represent some of the most dynamic environments on Earth and examining their morphodynamic behaviour over different temporal and spatial scales is challenging, relying on multidisciplinary approaches and techniques. Sandy Beach Morphodynamics brings together the latest research on beach systems and their morphodynamics and the ways in which they are studied in 29 chapters that review the full spectrum of beach morphodynamics. The chapters are written by leading experts in the field and provide introductory level understanding of physical processes and resulting landforms, along with more advanced discussions.
