Local scour modeling around hydraulic structures with complex geometries

X. Liu, Y. Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hydraulic structures, such as bridges, dikes, engineered logs, rock weirs and vanes, are common in engineering practice. Their existence presents a disturbance to the flow field in rivers and coastal regions. As a result, the sediment transport around these structures is disturbed and consequently results in scour and erosion. This work aims to simulate the sediment transport and bed morphological changes induced by complex structures in real world. Previously we have developed Arbitrary-Lagrangian-Eulerian (ALE) method to track the deformed bed, which is useful for scour around simple geometries. It is difficult and sometime fails to model scour around complex structures. We present a new model which uses an Immersed Boundary Method (IBM) to dynamically track the geometrical deformation of the bed. This method eliminates the need of mesh deformation or remeshing in an ALE approach. The model is developed in the open source computational fluid dynamics platform OpenFOAM.

Original languageEnglish (US)
Title of host publicationScour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018
EditorsYeh Keh-Chia
PublisherCRC Press/Balkema
Pages629-632
Number of pages4
ISBN (Print)9780367074678
Publication statusPublished - Jan 1 2019
Event9th International Conference on Scour and Erosion, ICSE 2018 - Taipei, Taiwan, Province of China
Duration: Nov 5 2018Nov 8 2018

Publication series

NameScour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018

Conference

Conference9th International Conference on Scour and Erosion, ICSE 2018
CountryTaiwan, Province of China
CityTaipei
Period11/5/1811/8/18

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All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Ocean Engineering
  • Environmental Engineering

Cite this

Liu, X., & Xu, Y. (2019). Local scour modeling around hydraulic structures with complex geometries. In Y. Keh-Chia (Ed.), Scour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018 (pp. 629-632). (Scour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018). CRC Press/Balkema.