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Modified Finite Element Transport Model Fetra For Sediment And Radionuclide Migration In Open Coastal Waters
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Book Synopsis Modified Finite Element Transport Model, FETRA, for Sediment and Radionuclide Migration in Open Coastal Waters by : Yasuo Onishi
Download or read book Modified Finite Element Transport Model, FETRA, for Sediment and Radionuclide Migration in Open Coastal Waters written by Yasuo Onishi and published by . This book was released on 1979 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modified Finite Element Transport Model, Fetra, for Sediment and Raoionuclide Migration in Open Coastal Waters by :
Download or read book Modified Finite Element Transport Model, Fetra, for Sediment and Raoionuclide Migration in Open Coastal Waters written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite element model, FETRA, simulates transport of sediment and radionuclides (and other contaminants, such as heavy metals, pesticides, and other toxic substances) in surface water bodies. The model is an unsteady, two-dimensional (longitudinal and lateral} model which consists of the following three submodels coupled to include sediment-contaminant interactions: 1) sediment transport submodel, 2} dissolved contaminant transport submodel, and 3) particulate contaminant (contaminant adsorbed by sediment) transport submodel. Under the current phase of the study, FETRA was modified to include sediment-wave interaction in order to extend the applicability of the model to coastal zones and large lakes (e.g., the Great Lakes) where wave actions can be one of the dominant mechanisms to transport sediment and toxic contaminant. FETRA was further modified to handle both linear and quadratic approximations to velocity and depth distributions in order to be compatible with various finite element hydrodynamic models (e.g., RMA II and CAFE) which supply hydrodynamic input data to FETRA. The next step is to apply FETRA to coastal zones to simulate transport of sediment and radionuclides with their interactions in order to test and verify the model under marine and large lacustrine environments.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mathematical Simulation of Sediment and Radionuclide Transport in Surface Waters by : Yasuo Onishi
Download or read book Mathematical Simulation of Sediment and Radionuclide Transport in Surface Waters written by Yasuo Onishi and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :U.S. Nuclear Regulatory Commission. Division of Technical Information and Document Control Publisher : ISBN 13 : Total Pages :378 pages Book Rating :4.:/5 (319 download)
Book Synopsis Regulatory and Technical Reports by : U.S. Nuclear Regulatory Commission. Division of Technical Information and Document Control
Download or read book Regulatory and Technical Reports written by U.S. Nuclear Regulatory Commission. Division of Technical Information and Document Control and published by . This book was released on 1979 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes indexes.
Book Synopsis Regulatory and Technical Reports by : U.S. Nuclear Regulatory Commission. Policy and Publications Management Branch
Download or read book Regulatory and Technical Reports written by U.S. Nuclear Regulatory Commission. Policy and Publications Management Branch and published by . This book was released on 1979 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NUREG/CR. by : U.S. Nuclear Regulatory Commission
Download or read book NUREG/CR. written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1981 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Critical Review written by Yasuo Onishi and published by . This book was released on 1981 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Remedial Actions at Uncontrolled Hazardous Waste Sites by :
Download or read book Modeling Remedial Actions at Uncontrolled Hazardous Waste Sites written by and published by . This book was released on 1985 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1980 with total page 1692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrodynamics and Transport for Water Quality Modeling by : James L. Martin
Download or read book Hydrodynamics and Transport for Water Quality Modeling written by James L. Martin and published by CRC Press. This book was released on 2018-05-04 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Finite Element Models for Sediment and Contaminant Transport in Surface Waters. Transport of Sediments and Radionuclides in the Clinch River. [/sup 137/Cs /sup 90/Sr /sup 198/Au]. by :
Download or read book Finite Element Models for Sediment and Contaminant Transport in Surface Waters. Transport of Sediments and Radionuclides in the Clinch River. [/sup 137/Cs /sup 90/Sr /sup 198/Au]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Radionuclide migration in rivers was simulated in this study to advance the state-of-the-art of computer modeling on radionuclide transport by including the effects of sediment-radionuclide interaction. Specifically, the finite element sediment and contaminant transport model, SERATRA, was modified and applied to the Clinch River in Tennessee to solve time-dependent, longitudinal and vertical distributions of sediments and radionuclides. Sediment transport was modeled for each sediment size fraction (i.e., sand, silt and clay), and radionuclide transport was modeled for dissolved and particulate nuclides. Furthermore, particulate radionuclides were solved for those adsorbed by each sediment size fraction. Three radionuclides, cesium-137, strontium-90 and gold-198, were selected as sources of continuous and instantaneous releases because of their adsorption characteristics and field data availability. Agreement of predicted results and field data for continuous release cases was very good, while for instantaneous releases agreement was poor. It was revealed that approximately 93 percent of the cesium-137 is in a particulate form, and only about 7 percent is dissolved. The model predicted that approximately 50 percent of the cesium 137 introduced in the Clinch River will be deposited on the river bed before it reaches the river mouth as a result of contaminated sediment deposition in slow moving areas of the river. Results on strontium-90 indicated the opposite trend, i.e., approximately 97 percent is in the dissolved form and only 3 percent was associated with the sediment; hence, the majority of strontium-90 moves with the water through the river system. Gold-198 was used for instantaneous release simulation, but since agreement between simulated results and data was not good no conclusions can be drawn for this case.
Book Synopsis Finite Element Models for Sediment and Contaminant Transport in Surface Waters by : Yasuo Onishi
Download or read book Finite Element Models for Sediment and Contaminant Transport in Surface Waters written by Yasuo Onishi and published by . This book was released on 1977 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mathematical Simulation of Sediment and Radionuclide Transport in Coastal Waters: User's manual and computer program listing for FETRA by : Yasuo Onishi
Download or read book Mathematical Simulation of Sediment and Radionuclide Transport in Coastal Waters: User's manual and computer program listing for FETRA written by Yasuo Onishi and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mathematical Simulation of Sediment and Radionuclide Transport in Surface Waters by :
Download or read book Mathematical Simulation of Sediment and Radionuclide Transport in Surface Waters written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study objective of "The Mathematical Simulation of Sediment and Radionuclide Transport in Surface Waters" is to synthesize and test radionuclide transport models capable of realistically assessing radionuclide transport in various types of surface water bodies by including the sediment-radionuclide interactions. These interactions include radionuclide adsorption by sediment; desorption from sediment into water; and transport, deposition, and resuspension of sorbed radionuclides controlled by the sediment movements. During FY-1979, the modification of sediment and contaminant (radionuclide) transport model, FETRA, was completed to make it applicable to coastal waters. The model is an unsteady, two-dimensional (longitudinal and lateral) model that consists of three submodels (for sediment, dissolved-contaminant, and particulate-contaminant transport), coupled to include the sediment-contaminant interactions. In estuaries, flow phenomena and consequent sediment and radionuclide migration are often three-dimensional in nature mainly because of nonuniform channel cross-sections, salinity intrusion, and lateral-flow circulation. Thus, an unsteady, three-dimensional radionuclide transport model for estuaries is also being synthesized by combining and modifying a PNL unsteady hydrothermal model and FETRA. These two radionuclide transport models for coastal waters and estuaries will be applied to actual sites to examine the validity of the codes.
Book Synopsis Finite Element Modelling of Circulation and Transport Processes in Coastal Waters by : Chi-Wai Li
Download or read book Finite Element Modelling of Circulation and Transport Processes in Coastal Waters written by Chi-Wai Li and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selection Criteria for Mathematical Models Used in Exposure Assessments by :
Download or read book Selection Criteria for Mathematical Models Used in Exposure Assessments written by and published by . This book was released on 1987 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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