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Effects Of Tidal Bores On Turbulent Mixing
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Book Synopsis Effects of Tidal Bores on Turbulent Mixing by : Bruno Simon
Download or read book Effects of Tidal Bores on Turbulent Mixing written by Bruno Simon and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal bores are surge waves propagating upstream rivers as the tide rushes into estuaries. They induce large turbulences and mixing of the river and estuary flow of which effects remain scarcely studied. Herein, tidal bores are investigated experimentally and numerically with an idealised model of positive surges propagating upstream an initially steady flow. The experimental work estimated flow changes and typical turbulent length scale evolution induced by undular bores with and without breaking roller. The bore passage was associated with large free surface and flow velocity fluctuations, together with some variations of the integral turbulent scales. Coherent turbulent structures appeared in the wake of leading wave near the bed and moved upward into the water column during the bore propagation. The numerical simulations were based on previous experimental work on undular bores. Some test cases were realised to verify the accuracy of the numerical methods. The results gave access to the detailed flow evolution during the bore propagation. Large velocity reversals were observed close to the no-slip boundaries. In some configurations, coherent turbulent structures appeared against the walls in the wake of the bore front.
Book Synopsis Tidal Bores, Aegir, Eagre, Mascaret, Pororoca by : Hubert Chanson
Download or read book Tidal Bores, Aegir, Eagre, Mascaret, Pororoca written by Hubert Chanson and published by World Scientific. This book was released on 2012 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tidal bore is a series of waves propagating upstream as the tidal flow turns to rising. It forms during spring tide conditions when the tidal range exceeds 4 to 6 m and the flood tide is confined to a narrow funnelled estuary. Its existence is based upon a fragile hydrodynamic balance between the tidal amplitude, the freshwater river flow conditions and the river channel bathymetry, and it is shown that this balance may be easily disturbed by changes in boundary conditions and freshwater inflow. This book demystifies the physics of a tidal bore and it thoroughly documents the tidal bores on our planet with reliable and accurate information. It aims to cultivate a passion for a beautiful, but fragile geophysical process, with in-depth updated content and by over 190 illustrations and photographs.
Book Synopsis Stability Effects on Turbulent Mixing in Tidal Currents by : K. F. Bowden
Download or read book Stability Effects on Turbulent Mixing in Tidal Currents written by K. F. Bowden and published by . This book was released on 1967 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tides written by David George Bowers and published by Oxford University Press, USA. This book was released on 2019-11-28 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tide is the greatest synchronised movement of matter on our planet. Every drop of seawater takes part in tidal motion, driven by the gravitational pull of the moon and sun. At the coast, we see the tide as a twice-daily rise and fall of sea level that moves the edge of the sea up and down a beach or cliff-face. In some places, the tide is small but at others it can rise in a few hours by the height of a three storey building; it then has to be treated with great respect by those who live and work by the sea. In this Very Short Introduction David George Bowers and Emyr Martyn Roberts explore what we know about the tides. Blending clear explanations of well known tidal phenomena with recent insights in the deep ocean and coastal seas, Bowers and Roberts use examples from around the world, to tell the story of the tide, considering its nature and causes, its observation and prediction, and unusual tides and their relevance. They explore why tides have attracted the attention of some of the world's greatest scientists, from the initial challenge of explaining why there are two tides a day when the moon and sun pass overhead just once; a problem that was solved by Isaac Newton. In the 19th century, scientists unravelled the rhythms of the tide; good tidal predictions in the form of tide tables were then possible. The predictions were made on beautiful tide predicting machines constructed of brass and mahogany, some of which can still be seen in maritime museums. In the 20th century, the importance of tides as mixers of sea water became evident. As Bowers and Roberts explore, tidal mixing of the ocean is essential for maintaining its deep circulation, a key part of the climate-control system of our planet. In inshore waters, tidal mixing enhances biological productivity, influences sea temperature and turbidity and creates dramatic features such as maelstroms and tidal bores. In the 21st century, space probes are examining the effects of tidal processes on the moons of Jupiter and Saturn and the possibility of tidally-heated liquid oceans with their own ecosystems. Looking to the cutting edge of tidal research, Bowers and Roberts also consider how we can study the role of the tide in the geological and biological evolution of our own planet with innovative computer models. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Book Synopsis Tidal Bores, Aegir, Eagre, Mascaret, Pororoca by : Hubert Chanson
Download or read book Tidal Bores, Aegir, Eagre, Mascaret, Pororoca written by Hubert Chanson and published by World Scientific. This book was released on 2012 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: A tidal bore is a series of waves propagating upstream as the tidal flow turns to rising. It forms during spring tide conditions when the tidal range exceeds 4 to 6 m and the flood tide is confined to a narrow funnelled estuary. Its existence is based upon a fragile hydrodynamic balance between the tidal amplitude, the freshwater river flow conditions and the river channel bathymetry, and it is shown that this balance may be easily disturbed by changes in boundary conditions and freshwater inflow. This book demystifies the physics of a tidal bore and it thoroughly documents the tidal bores on our planet with reliable and accurate information. It aims to cultivate a passion for a beautiful, but fragile geophysical process, with in-depth updated content and by over 190 illustrations and photographs.
Book Synopsis Environmental Hydraulics for Open Channel Flows by : Hubert Chanson
Download or read book Environmental Hydraulics for Open Channel Flows written by Hubert Chanson and published by Elsevier. This book was released on 2004-10-14 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Hydraulics is a new text for students and professionals studying advanced topics in river and estuarine systems. The book contains the full range of subjects on open channel flows, including mixing and dispersion, Saint-Venant equations method of characteristics and interactions between flowing water and its surrondings (air entrainment, sediment transport).Following the approach of Hubert Chanson's highly successful undergraduate textbook Hydraulics of Open Channel Flow, the reader is guided step-by-step from the basic principles to more advanced practical applications. Each section of the book contains many revision exercises, problems and assignments to help the reader test their learning in practical situations.·Complete text on river and estuarine systems in a single volume·Step-by-step guide to practical applications·Many worked examples and exercises
Download or read book Ocean Mixing written by Michael Meredith and published by Elsevier. This book was released on 2021-09-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean Mixing: Drivers, Mechanisms and Impacts presents a broad panorama of one of the most rapidly-developing areas of marine science. It highlights the state-of-the-art concerning knowledge of the causes of ocean mixing, and a perspective on the implications for ocean circulation, climate, biogeochemistry and the marine ecosystem. This edited volume places a particular emphasis on elucidating the key future questions relating to ocean mixing, and emerging ideas and activities to address them, including innovative technology developments and advances in methodology. Ocean Mixing is a key reference for those entering the field, and for those seeking a comprehensive overview of how the key current issues are being addressed and what the priorities for future research are. Each chapter is written by established leaders in ocean mixing research; the volume is thus suitable for those seeking specific detailed information on sub-topics, as well as those seeking a broad synopsis of current understanding. It provides useful ammunition for those pursuing funding for specific future research campaigns, by being an authoritative source concerning key scientific goals in the short, medium and long term. Additionally, the chapters contain bespoke and informative graphics that can be used in teaching and science communication to convey the complex concepts and phenomena in easily accessible ways. - Presents a coherent overview of the state-of-the-art research concerning ocean mixing - Provides an in-depth discussion of how ocean mixing impacts all scales of the planetary system - Includes elucidation of the grand challenges in ocean mixing, and how they might be addressed
Book Synopsis Coastal and Estuarine Processes by : Peter Nielsen
Download or read book Coastal and Estuarine Processes written by Peter Nielsen and published by World Scientific Publishing Company. This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introductory treatment to coastal and estuarine processes for earth scientists or engineers. Suitable for a first course on the subject, it covers water waves, surf zone hydrodynamics, tides in oceans and estuaries, storm surges, estuarine mixing, basic sediment transport, coastal morphodynamics and coastal groundwater dynamics. The book contains a substantial amount of new material. For example, the explicit, analytical treatment of transient, forced long waves strongly enhances the discussion on tsunami, storm surges and surf beat. The treatment of turbulent mixing includes finite mixing length effects, which provide an explanation for differential diffusion of different sediment sizes in suspension. The recently discovered effects of acceleration skewness and boundary layer streaming are also included in the basic sediment transport models. In addition, the treatment of beach groundwater dynamics: The mechanisms by which waves as well as tides drive groundwater motion, builds the link between the previously unconnected fields of coastal hydraulics and regional groundwater modeling. To serve as an effective reference book for professionals, the book is fully indexed and comprehensively cross referenced.
Book Synopsis Fluid Mechanics of Environmental Interfaces, Second Edition by : Carlo Gualtieri
Download or read book Fluid Mechanics of Environmental Interfaces, Second Edition written by Carlo Gualtieri and published by CRC Press. This book was released on 2012-11-21 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Fluid Mechanics (EFM) studies the motion of air and water at several different scales, the fate and transport of species carried along by these fluids, and the interactions among those flows and geological, biological, and engineered systems. EFM emerged some decades ago as a response to the need for tools to study problems of flow and transport in rivers, estuaries, lakes, groundwater and the atmosphere; it is a topic of increasing importance for decision makers, engineers, and researchers alike. The second edition of the successful textbook "Fluid Mechanics of Environmental Interfaces" is still aimed at providing a comprehensive overview of fluid mechanical processes occurring at the different interfaces existing in the realm of EFM, such as the air-water interface, the air-land interface, the water-sediment interface, the surface water-groundwater interface, the water-vegetation interface, and the water-biological systems interface. Across any of these interfaces mass, momentum, and heat are exchanged through different fluid mechanical processes over various spatial and temporal scales. In this second edition, the unique feature of this book, considering all the topics from the point of view of the concept of environmental interface, was maintained while the chapters were updated and five new chapters have been added to significantly enlarge the coverage of the subject area. The book starts with a chapter introducing the concept of EFM and its scope, scales, processes and systems. Then, the book is structured in three parts with fifteen chapters. Part one, which is composed of four chapters, covers the processes occurring at the interfaces between the atmosphere and the surface of the land and the seas, including the transport of dust and the dispersion of passive substances within the atmosphere. Part two deals in five chapters with the fluid mechanics at the air-water interface at small scales and sediment-water interface, including the advective diffusion of air bubbles, the hyporheic exchange and the tidal bores. Finally, part three discusses in six chapters the processes at the interfaces between fluids and biotic systems, such as transport processes in the soil-vegetation-lower atmosphere system, turbulence and wind above and within the forest canopy, flow and mass transport in vegetated open channels, transport processes to and from benthic plants and animals and coupling between interacting environmental interfaces. Each chapter has an educational part, which is structured in four sections: a synopsis of the chapter, a list of keywords that the reader should have encountered in the chapter, a list of questions and a list of unsolved problems related to the topics covered by the chapter. The book will be of interest to graduate students and researchers in environmental sciences, civil engineering and environmental engineering, (geo)physics, atmospheric science, meteorology, limnology, oceanography, and applied mathematics.
Book Synopsis Investigating Seafloors and Oceans by : Antony Joseph
Download or read book Investigating Seafloors and Oceans written by Antony Joseph and published by Elsevier. This book was released on 2016-12-08 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigating Seafloors and Oceans: From Mud Volcanoes to Giant Squid offers a bottom-to-top tour of the world's oceans, exposing the secrets hidden therein from a variety of scientific perspectives. Opening with a discussion of the earth's formation, hot spots, ridges, plate tectonics, submarine trenches, and cold seeps, the text goes on to address such topics as the role of oceans in the origin of life, tidal bore, thermal effects, ecosystem services, marine creatures, and nutraceutical and pharmaceutical resources. This unique reference provides insight into a wide array of questions that researchers continue to ask about the vast study of oceans and the seafloor. It is a one-of-a-kind examination of oceans that offers important perspectives for researchers, practitioners, and academics in all marine-related fields. - Includes chapters addressing various scientific disciplines, offering the opportunity for readers to gain insights on diverse topics in the study of oceans - Provides scientific discussion on thermo-tolerant microbial life in sub-seafloor hot sediments and vent fields, as well as the origin of life debates and the puzzles revolving around how life originated - Includes detailed information on the origin of dreaded episodes, such as volcanic eruptions, earthquakes, tsunamis, internal waves and tidal bores - Contains information on the contribution of the oceans in terms of providing useful nutraceutical and pharmaceutical products
Book Synopsis www.owaysonline.com 2ND Mate & NCV Complete Handout ( Volume 2 ) www.owaysonline.com by :
Download or read book www.owaysonline.com 2ND Mate & NCV Complete Handout ( Volume 2 ) www.owaysonline.com written by and published by Oways. This book was released on with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: VISIT WEBPAGE:- www.owaysonline.com FOR CHEAPEST NOTES ü Airpipes ü Abnormal Tides - Tidal Bore ü Anemometer ü Aneroid Barometer ü Barograph ü Geostrophic Wind ü Gradient Wind ü Heat ü Isallabars ü Latent Heat ü Metereology ü Relative Humidity ü Sea Breeze & Land Breeze ü The Atmosphere ü Tidal Bore ü Vapour Pressure ü Visibility – Fog ü Water Vapour ü Wind Roses ü WMO NAVIGATION ü Celestial Navigation ü Chartwork Theory – Captain Martins ü Daily motion & Horizontal System of Co-ordinates ü Earth - Moon System ü Hour Angles ü Latitude by Meridian Altitude ü Sextant and Altitude ü Solar System ü Staggered Observation ü Time ü Twilight - Rising & Setting of ü Celestial Bodies ü Twilight & Circumpolar Bodies – Numericals SEP ü Ballast Water Management ü Bunker Overflow & PSSA ü Bunkering Operations ü Bunkering Safety Check-list ü Classification Societies ü Code of Safe working Practices for Seaman ü Collision ü Control of discharge of oil ü Danger Message ü Emergency - Abandoning Ship ü Emergency – Collision ü Emergency - Grounding & Stranding ü Emergency - Hull Fracture & Flooding ü Emergency - Hull Fracture ü Emergency - Personnel Injury, Sickness & Death ü Emergency - Piracy & Armed Robbery ü Emergency - Search & Rescue ü Enclosed Space Entry Permit ü Garbage Management Plan (GMP) ü Grounding ü Hotwork ü International Convention on Load Lines, 1966 ü ISPS Code ü Leadership Vs Motivation ü Maritime Labour Convention 2006 ü Marpol - 1973 International Convention ü Marpol - Annex 1 – ODMCS ü Marpol - Annex 1 - Special Areas ü Marpol - Annex 2 – II ü Marpol - Annex 3 – III ü Marpol - Annex 4 – IV ü Marpol - Annex 5 – V ü Marpol - Annex 5 – V -Special Areas ü Non-Tank Vessel (NTVRP) ü Oil Pollution OPA ü Oil Record Book ü Oil Tankers ü Oily Water Separator ü Permit-to-work System ü Personal Protective Equipment ü Preparations & Precautions for heavy Weather ü PSC Inspection ü Risk Assessment ü Risk Assessment – Steps ü Ropes ü Ship board Oil pollution Plan – SOPEP ü SOLAS – Annex 7 ü SOLAS Convention ü SOLAS Requirement for LSA ü Task and Workload Management ü Team Work ü The ISM Code ü The National Pollutant Discharge Elimination System (NPDES) ü The Safety Organisation on Board ü United Nations Convention on the law (UNCLOS) ü Working aloft SHIP CONSTRUCTION ü Bottom Structure ü Hatchways ü Oil Tanker Construction ü Rudders and Stern Frames ü Scuppers, Air and Sounding Pipes ü Shell and Deck Plating ü Ship Construction – Diagram ü Ship Construction ü Stern Tube ü Types of Frame ü Web Frame SHIP HANDLING ü Principles of Ship Handling ü Ship Handling ü Ship Handling- Part 2 STABILITY ü Stability Question Set ü Trim – Hindship ü Trim
Book Synopsis Fluvial, Environmental and Coastal Developments in Hydraulic Engineering by : Michele Mossa
Download or read book Fluvial, Environmental and Coastal Developments in Hydraulic Engineering written by Michele Mossa and published by CRC Press. This book was released on 2004-12-05 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprising the Proceedings of the International Workshop on State-of-the-Art Hydraulic Engineering held in Bari, Italy on 16-19 February 2004, this volume presents an in-depth investigation of the energy loss of skimming flows under a range of discharges, step and dam heights, and channel slopes. Including a wealth of information, the volume is div
Book Synopsis Turbulence Measurements in Tidal Bore-like Positive Surges Over a Rough Bed by : Bruno Simon
Download or read book Turbulence Measurements in Tidal Bore-like Positive Surges Over a Rough Bed written by Bruno Simon and published by . This book was released on 2013 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unsteady Turbulence During the Upstream Propagation of Undular and Breaking Tidal Bores by : Xinqian Leng
Download or read book Unsteady Turbulence During the Upstream Propagation of Undular and Breaking Tidal Bores written by Xinqian Leng and published by . This book was released on 2015-02-15 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis My Concept Of Hinduism by : Vinay Kr Sinha
Download or read book My Concept Of Hinduism written by Vinay Kr Sinha and published by Notion Press. This book was released on 2019-04-01 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hindu philosophy tells us that the most important thing in life is Karma (action). Purposeful action done with integrity leads to Purushartha(worthy endeavors, achievements and fulfillments). Purushartha has four aspects – Dharma (right aims, objectives and endeavors), Artha (acquisition of physical necessities), Kama (emotional fulfillment) and Moksha (riddance of clutter, both physical and mental). These ideas were not created in a day, but accumulation of thoughts over the ages and generations. The first thinkers were the Rakshasas and their deity, Yam, gave us the first laws and philosophies. Over the millenniums many additional laws and by-laws came up. This gave us a very dynamic society which scoured the seas, the story of which is narrated in the Samudra Manthan. Through Samudra Manthan many new ideas came from other lands which got incorporated into Indian thoughts and this dynamism created the Indus Valley civilization (IVC). In IVC people of many cultures came to reside and that created a vast literature comprising Manusmriti, Puranas, Samhitas, Vedas, Gita, Mahabharata and many others. The new philosophy of Vaishnavism came up and transformed India to such an extent that India became known as the bird with golden feathers. However, for reasons not fully known the IVC collapsed but the engineers and architects who created IVC spread all over the then known world and made those worlds richer and magnificient. This narrative is an attempt to recount this lost saga in a very simple language. The author hopes that it will be interesting to the reader.
Book Synopsis An Experimental Study of Tidal Bores and Positive Surges by : Christian Koch
Download or read book An Experimental Study of Tidal Bores and Positive Surges written by Christian Koch and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Small-Scale Turbulence and Mixing in the Ocean by : J.C.J. Nihoul
Download or read book Small-Scale Turbulence and Mixing in the Ocean written by J.C.J. Nihoul and published by Elsevier. This book was released on 1988-05-01 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the 19th International Liège Colloquium on Ocean Hydrodynamics, the programme of which focused on the relationships between small-scale mixing and large-scale features, transports and processes. The presentation of papers on various methods of parameterization of small-scale turbulent mixing for numerical ocean models was particularly encouraged and this resulted in more than a third of the papers presented at the Colloquium dealing in one way or another with the parameterization problems; many of these papers demonstrate the direct results of modelling. These proportions are well reflected in this volume of proceedings and thus emphasize once more the importance of small-scale turbulence research for such vital practical applications as ocean modelling and forecasting.
