NUMERICAL AND EXPERIMENTAL STUDY OF DAM-BREAK FLOOD PROPAGATION AND ITS IMPLICATION TO SEDIMENT EROSION

  • Hung-Chu Hsu
  • A. Torres-Freyermuth
  • Tian-Jian Hsu
  • Hwung-Hweng Hwung
Keywords: numerical modeling, dam-break flow, laboratory tests, sediment transport

Abstract

Regarding the hydrodynamics, within the past two decades it has become popular in numerical modeling of free-surface flow to adopt a Reynolds-averaged Navier-Stokes approach, where the volume of fluid (VOF) method is utilized to track the evolution of free-surface. However, this robust numerical model has not been widely applied to the study of sediment transport processes. In this study, we shall extend the numerical model to simulate suspended sediment transport and study the erosion pattern during the initial stage of the dam break flow. We also conducted a series of experiments in a horizontal channel of rectangular section and recorded the snap shots of surface profiles of a dam- break wave during the initial stage of dam-break. Measured data is utilized here to study the hydrodynamics and to validate the numerical model.

Author Biographies

Hung-Chu Hsu
Tainan Hydraulics Lab., National Cheng-Kung University, 5F., No.500, Sec. 3, Anming Rd., Annan District, Tainan City, 709, Taiwan
A. Torres-Freyermuth
Laboratorio de Ingenieríay Procesos Costeros, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Sisal, Mexico
Tian-Jian Hsu
Center for Applied Coastal Research, Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA
Hwung-Hweng Hwung
Department of Hydraulic and Ocean Engineering, National Cheng-Kung University, No.1, University Road, Tainan City, 701, Taiwan

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Published
2012-10-15
How to Cite
Hsu, H.-C., Torres-Freyermuth, A., Hsu, T.-J., & Hwung, H.-H. (2012). NUMERICAL AND EXPERIMENTAL STUDY OF DAM-BREAK FLOOD PROPAGATION AND ITS IMPLICATION TO SEDIMENT EROSION. Coastal Engineering Proceedings, 1(33), sediment.7. https://doi.org/10.9753/icce.v33.sediment.7

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