Dam-Break Induced Flood Wave Propagation on a Residential Area by Derivation of Saint-Venant Equations

Marangoz H. O., Anılan T., Karasu S.

ICEARC23, Trabzon, Türkiye, 12 - 14 Kasım 2023, cilt.1, ss.580-586

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Trabzon
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.580-586
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

Özet

Purpose: It is conducted a dam break-based flood propagation analysis on a residential area located in Trabzon, Türkiye.

Study design/methodology/approach: a 2D- dam break numerical analysis is carried out. St. Venant Equations is derived by a four-point implicit finite difference scheme. Diffusive model is represented to act a flow propagation on a dry riverbed. Flow hydrograph passing through the dam axis calculated by using a Froehlich 1995 analytic model is routed along the downstream.

Findings: Results predict that flood depths can reach up to 8 meters on the residentials area after 32 minutes from a sudden dam break. The average flood velocity on the line in the central area were 7.45 meter per second. Flood wave arrived to earth crops office(ECO) on the west and a fishery harbor on the east maximum. There is no influential flow on mall of the central area. 

Originality/value: Diffusive wave analysis is combined with a manually produced flow hydrograph on a dam axis. 2D propagation on a residential area investigated by exact probes which describe the flow properties.  The effect of local and convective acceleration terms is neglected since to investigate of inertia forces.