کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5445804 | 1511123 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One Dimensional Sediment Transport Model to Assess Channel Changes along OlteniÅ£a-CÄlÄraÅi Reach of Danube River, Romania
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: One Dimensional Sediment Transport Model to Assess Channel Changes along OlteniÅ£a-CÄlÄraÅi Reach of Danube River, Romania One Dimensional Sediment Transport Model to Assess Channel Changes along OlteniÅ£a-CÄlÄraÅi Reach of Danube River, Romania](/preview/png/5445804.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 112, March 2017, Pages 67-74
Journal: Energy Procedia - Volume 112, March 2017, Pages 67-74
نویسندگان
Daniela GogoaÅe Nistoran, Cristina Ionescu, Georgiana PÄtru, Iuliana ArmaÅ, Åtefania Grigorie Omrani,