Abstract
A new method is proposed to calculate the cross-sectional flow field in compound channels for 1D flow models. The proposed method involves a new parameterization of the interface stress between adjacent compartments, typically between the main channel and floodplain of a two-stage channel. This expression, proportional to the difference in squared velocities allows for a simple calculation of the average flow velocities in different compartments. For two-stage channels good agreement is found between the model results and data from literature. Also, it is shown that the description of compartment-averaged velocities may be applied to flows in channel cross-sections with arbitrary geometry, thus providing a potentially useful improvement to 1D river flow models.
Original language | English |
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Title of host publication | 5th International Symposium on Environmental Hydraulics (ISEH) |
Subtitle of host publication | 4-7 December 2007, Arizona State University, Tempe, AZ, USA |
Editors | D. Boyer, O. Alexandrova |
Publisher | Arizona State University / IAHR |
Pages | 1-6 |
Number of pages | 6 |
Publication status | Published - 4 Dec 2007 |
Event | 5th International Symposium on Environmental Hydraulics, ISEH 2007 - Tempe, United States Duration: 4 Dec 2007 → 7 Dec 2007 Conference number: 5 |
Conference
Conference | 5th International Symposium on Environmental Hydraulics, ISEH 2007 |
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Abbreviated title | ISEH |
Country/Territory | United States |
City | Tempe |
Period | 4/12/07 → 7/12/07 |
Keywords
- IR-60445
- METIS-240417