| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5445804 | Energy Procedia | 2017 | 8 Pages |
Abstract
Sediment budget of thelower part of theDanube River haschangedduringthelastdecades, mainlyduetotheconstruction of damsanddykes. The objective of thisstudyistoassessthe sediment budget andmorphologicalchangesalongOlteniÅ£a - CÄlÄraÅiDanube River reach, withtheuse of a one dimensional hydraulicand sediment transport model. The river schematic networkwasextractedfrom a Digital Terrain Model, builtwithtopobathimetric data, using HEC-GeoRAS. The hydrodynamic model wasbuilt, calibratedandvalidatedwiththe 1D HEC-RAS software underunsteadyflowregime, withhydrologicand sediment data fromthe period 2008-2011 at thetwoupstreamanddownstreamgaugingstations. Measured sediment discharge data wereusedtocomputethesuspendedloadwithdifferent transport functions. The functionthatrepresentsthebest fit for theobservedvalues of suspendedload in 2008 wasusedto model thehydromorphologicalbehaviour of theriverreach for the period 2009-2011. Computed sediment dischargevalueswerefoundtofollowthetendency of previousdecades. The model wasalsousedtoassesspossiblechanges of thechannelbedbyaggradation or degradationalongthestudyreach, over theanalysed period.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Daniela GogoaÅe Nistoran, Cristina Ionescu, Georgiana PÄtru, Iuliana ArmaÅ, Åtefania Grigorie Omrani,