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E. Eric Adams. Tang, Ling, 1963- Massachusetts Institute of Technology. Department of Civil and Environmental Engineering 2005-08-19T19:06:23Z 2005-08-19T19:06:23Z 1998 1998 http://hdl.handle.net/1721.1/9637 42363993 Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998. Includes bibliographical references. The problem of interfacing hydrodynamic and water quality models is investigated with emphasis on modeling efficiency, accuracy and flexibility. An Eulerian-Lagrangian type of transport model is proposed for interfacing due to its superior simulation effi­ciency and numerical resolution in advection dominant flows. Comparisons are made between Eulerian models and Eulerian-Lagrangian models through both theoretical analyses and numerical studies of mass conservation and concentration accuracy. A mass conservative model, such as an Eulerian type model, will not necessarily guar­antee concentration accuracy. As part of this research, a three dimensional Eulerian­Lagrangian transport model (ELM3D) is developed and validated. The interfacing efficiency of ELM3D is demonstrated through a series of numerical tracer studies simulating the future outfall in Massachusetts Bay. Comparison against a tradi­tional Eulerian model, ECOMsi, shows that an Eulerian-Lagrangian interfacing with a proper mass correction technique, such as total mass scaling, can serve as an efficient transport tool, which is more robust than conventional Eulerian Models in dealing with advection dominant flows. by Ling Tang. Ph.D. 185 leaves 10064245 bytes 10064001 bytes application/pdf application/pdf eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Civil and Environmental Engineering Interfacing hydrodynamic and water quality models with the Eulerian-Lagrangian method Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="280ae864-c654-4089-bc89-395d5c86f6a4"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Interfacing hydrodynamic and water quality models with the Eulerian-Lagrangian method</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>1998</PublicationDate> <Authors> <Author> <DisplayName>Tang, Ling, 1963-</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Civil and Environmental Engineering</Keyword> <Abstract>The problem of interfacing hydrodynamic and water quality models is investigated with emphasis on modeling efficiency, accuracy and flexibility. An Eulerian-Lagrangian type of transport model is proposed for interfacing due to its superior simulation effi­ciency and numerical resolution in advection dominant flows. Comparisons are made between Eulerian models and Eulerian-Lagrangian models through both theoretical analyses and numerical studies of mass conservation and concentration accuracy. A mass conservative model, such as an Eulerian type model, will not necessarily guar­antee concentration accuracy. As part of this research, a three dimensional Eulerian­Lagrangian transport model (ELM3D) is developed and validated. The interfacing efficiency of ELM3D is demonstrated through a series of numerical tracer studies simulating the future outfall in Massachusetts Bay. Comparison against a tradi­tional Eulerian model, ECOMsi, shows that an Eulerian-Lagrangian interfacing with a proper mass correction technique, such as total mass scaling, can serve as an efficient transport tool, which is more robust than conventional Eulerian Models in dealing with advection dominant flows.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>