Hydrodynamics and Transport for Water Quality Modeling
Hydrodynamics and Transport for Water Quality Modeling

Author: James L. Martin

Publisher: CRC Press

Published: 2018-05-04

Total Pages: 820

ISBN-13: 1351439871

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Hydrodynamics and Transport for Water Quality Modeling presents a complete overview of current methods used to describe or predict transport in aquatic systems, with special emphasis on water quality modeling. The book features detailed descriptions of each method, supported by sample applications and case studies drawn from the authors' years of experience in the field. Each chapter examines a variety of modeling approaches, from simple to complex. This unique text/reference offers a wealth of information previously unavailable from a single source. The book begins with an overview of basic principles, and an introduction to the measurement and analysis of flow. The following section focuses on rivers and streams, including model complexity and data requirements, methods for estimating mixing, hydrologic routing methods, and unsteady flow modeling. The third section considers lakes and reservoirs, and discusses stratification and temperature modeling, mixing methods, reservoir routing and water balances, and dynamic modeling using one-, two-, and three-dimensional models. The book concludes with a section on estuaries, containing topics such as origins and classification, tides, mixing methods, tidally averaged estuary models, and dynamic modeling. Over 250 figures support the text. This is a valuable guide for students and practicing modelers who do not have extensive backgrounds in fluid dynamics.

John Laurens and the American Revolution
John Laurens and the American Revolution

Author: Gregory D. Massey

Publisher: Univ of South Carolina Press

Published: 2016-12-13

Total Pages: 372

ISBN-13: 1611176131

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An “excellent biography” of General Washington’s aide-de-camp, a daring soldier who advocated freeing slaves who served in the Continental Army (Journal of Military History). Winning a reputation for reckless bravery in a succession of major battles and sieges, John Laurens distinguished himself as one of the most zealous, self-sacrificing participants in the American Revolution. A native of South Carolina and son of Henry Laurens, president of the Continental Congress, John devoted his life to securing American independence. In this comprehensive biography, Gregory D. Massey recounts the young Laurens’s wartime record —a riveting tale in its own right —and finds that even more remarkable than his military escapades were his revolutionary ideas concerning the rights of African Americans. Massey relates Laurens’s desperation to fight for his country once revolution had begun. A law student in England, he joined the war effort in 1777, leaving behind his English wife and an unborn child he would never see. Massey tells of the young officer’s devoted service as General George Washington’s aide-de-camp, interaction with prominent military and political figures, and conspicuous military efforts at Brandywine, Germantown, Monmouth, Newport, Charleston, Savannah, and Yorktown. Massey also recounts Laurens’s survival of four battle wounds and six months as a prisoner of war, his controversial diplomatic mission to France, and his close friendship with Alexander Hamilton. Laurens’s death in a minor battle in August 1782 was a tragic loss for the new state and nation. Unlike other prominent southerners, Laurens believed blacks shared a similar nature with whites, and he formulated a plan to free slaves in return for their service in the Continental Army. Massey explores the personal, social, and cultural factors that prompted Laurens to diverge so radically from his peers and to raise vital questions about the role African Americans would play in the new republic. “Insightful and balanced . . . an intriguing account, not only of the Laurens family in particular but, equally important, of the extraordinarily complex relationships generated by the colonial breach with the Mother Country.” —North Carolina Historical Review

Computer Modeling of Free-Surface and Pressurized Flows
Computer Modeling of Free-Surface and Pressurized Flows

Author: M. Hanif Chaudhry

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 737

ISBN-13: 9401109648

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Computers are widely used for the analysis, design, and operation of water resource projects. This gives accurate results, allowing the analysis of complex systems which may not have been possible otherwise, and the investigation and comparison of several different alternatives in a short time, thereby reducing the project costs, optimizing design, and efficient utilization of resources. This volume compiles an edited version of the lecture notes specially prepared by 14 well-known European and North American researchers. Part I deals with free-surface flows. Governing equations are derived and their solution by the finite-difference, finite-element, and boundary-integral methods are discussed. Then, turbulence models, three-dimensional models, dam-break flow models, sediment transport models, and flood routing models are presented. Part II is related to the modeling of steady and transient pressurized flows. Governing equations for both single and two-component flows are derived and numerical methods for their solution are presented. The modeling of water quality in pipe networks, of cooling water systems, and slow and rapid transients is then discussed.