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Improving the Hydro-Morpho Dynamics of A River Confluence by Using Vanes

Author

Listed:
  • Hydar Lafta Ali

    (Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia
    Centre for the Restoration of the Iraq Marshlands and Wetlands (CRIMW), Ministry of Water Resources, Baghdad 10065, Iraq)

  • Badronnisa Yusuf

    (Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia)

  • Thamer Ahamed Mohammed

    (Water Resources Engineering, Faculty of Engineering, University of Baghdad, Baghdad 10071, Iraq)

  • Yasuyuki Shimizu

    (Hydraulic Research Laboratory, Hokkaido University, Sapporo 060-0817, Japan)

  • Mohd Shahrizal Ab Razak

    (Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia)

  • Balqis Mohamed Rehan

    (Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia)

Abstract

Controlling the flow and bed morphology in a river confluence is important in training and navigation works. The flow in river confluence is highly complex due to crucial and rapid changes associated with flow dynamics, sediment transport, and geomorphology. The flow in Malaysia’s rivers has many confluence junctions in natural drains of catchment areas. The confluence between Kurau and Ara Rivers, in Perak, Malaysia, is selected to investigate the scour hole that usually forms in the erosion zone and the bar that forms in the deposition zone. A 2D numerical model is used in simulating hydro-morpho dynamics in the rivers confluence to mitigate the erosion and deposition zones by adopting vanes as control structures. Simulation results suggest that the most effective location, dimension, and angle of vanes can be decided based on their performance in scouring and deposition zones. The distribution velocity and flow vectors can help in deciding the location of the vanes.

Suggested Citation

  • Hydar Lafta Ali & Badronnisa Yusuf & Thamer Ahamed Mohammed & Yasuyuki Shimizu & Mohd Shahrizal Ab Razak & Balqis Mohamed Rehan, 2019. "Improving the Hydro-Morpho Dynamics of A River Confluence by Using Vanes," Resources, MDPI, vol. 8(1), pages 1-22, January.
    • Handle: RePEc:gam:jresou:v:8:y:2019:i:1:p:9-:d:194292
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