Secondary flows and dispersion in channel junctions
Abstract/Contents
- Abstract
- Existing parameterizations for channel junctions often assume complete mixing and naturally arise from oversimplifications of junction physics. These models often use one computational cell to resolve channel junctions and neglect localized, supertidal flow features which may determine junction mixing via shear, separation, flow bifurcations, turbulent mixing layers, and secondary circulations induced by curvature. The hydrodynamics and dispersion in tidal junctions is largely unstudied and increased knowledge of junction hydrodynamics is needed to model transport for accurate ecosystem modeling. This dissertation determines numerical modeling techniques necessary to simulate the hydrodynamics of tidal river junctions and utilizes these results to perform a study of dispersion in the Georgiana Slough Junction of the Sacramento-San Joaquin Delta. First, techniques are developed to simulate secondary flows within a channel junction. Second, the hydrodynamics of the Georgiana Slough Junction are simulated and validated with field-data. Third, dispersion studies are performed using the validated model to assess the role of intra-junction flow features on dispersion in a channel junction.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2013 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Wolfram, Phillip J |
|---|---|
| Associated with | Stanford University, Department of Civil and Environmental Engineering. |
| Primary advisor | Fringer, Oliver B. (Oliver Bartlett) |
| Thesis advisor | Fringer, Oliver B. (Oliver Bartlett) |
| Thesis advisor | Fong, Derek |
| Thesis advisor | Koseff, Jeffrey Russell |
| Thesis advisor | Monismith, Stephen Gene |
| Advisor | Fong, Derek |
| Advisor | Koseff, Jeffrey Russell |
| Advisor | Monismith, Stephen Gene |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Phillip J. Wolfram. |
|---|---|
| Note | Submitted to the Department of Civil and Environmental Engineering. |
| Thesis | Ph.D. Stanford University 2013 |
| Location | electronic resource |
Access conditions
- Copyright
- © 2013 by Phillip Justin Wolfram
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