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Pregled bibliografske jedinice broj: 762597

Časopis

Autori: Krvavica, Nino; Travaš, Vanja
Naslov: A comparison of method of characteristics and Preissmann scheme for flood propagation modeling with 1D Saint-Venant equations
( A comparison of method of characteristics and Preissmann scheme for flood propagation modeling with 1D Saint-Venant equations )
Izvornik: Acta hydrotechnica (1581-0267) 27 (2015), 46; 1-12
Vrsta rada: članak
Ključne riječi: Saint Venant equations; method of characteristics; Preissmann scheme; flood wave propagation
( Saint Venant equations; method of characteristics; Preissmann scheme; flood wave propagation )
Sažetak:
The Saint-Venant equations were integrated by the explicit Method of Characteristics (MOC) and by the implicit Preissmann scheme to comparatively analyze and quantify the differences in prediction of flood wave propagation in open channels. For this purpose a hypothetical scenario was considered by defining a flood wave with a stage hydrograph at the inflow boundary of a prismatic channel. Downstream boundary was defined by a zero-gradient condition. The results are presented as stage hydrographs at equidistant sections along the channel. Comparative analysis revealed some differences between the compared methods. Discrepancies in peak wave heights are more evident in the upstream sections, while the downstream sections are more sensitive to differences in arrival times of flood wave peaks. The explicit MOC predicts lower wave heights and longer arrival times than the implicit Preissmann scheme.
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Građevinarstvo
URL Internet adrese: ftp://ksh.fgg.uni-lj.si/acta/a46nt.pdf
Broj citata:
Altmetric:
DOI: 519.6:556.166:626/627
URL cjelovitog teksta:
Google Scholar: A comparison of method of characteristics and Preissmann scheme for flood propagation modeling with 1D Saint-Venant equations
Upisao u CROSBI: Vanja Travaš (vanja.travas@gradri.hr), 25. Svi. 2015. u 16:06 sati



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