Title of the project
Managing River Bank Protection by Groynes in Straight and Meandering River Reaches in Iraq.
Type
PhD research
Duration
2026 – 2030
Persons involved
A. Amiri (PhD Candidate)
prof.dr. S.J.M.H. Hulscher (Promotor)
dr.ir. D.C.M. Augustijn (Co-Promotor)
dr. J.J. Warmink (Co-promotor)
dr.ir. V. Kitsikoudis (Co-promotor / Daily supervisor)
Funding of the project
The project is funded by the Higher Committee for Education Development (HCED), the Iraqi Prime Minister's Office, as a scholarship.
Summary of the research
This PhD research investigates the effectiveness of groynes as riverbank protection structures in meandering river reaches under different hydraulic conditions, with a focus on Iraqi river systems. Riverbank erosion is a major engineering and environmental challenge in alluvial rivers, where high velocities and unstable banks threaten agricultural surroundings, land, infrastructures, and nearby communities. The study aims to evaluate how various groyne designs can reduce erosion and enhance the stability of the banks through advanced numerical modeling and comparative analysis. It considers two case studies: the Tigris River near Al-Nuaamaniyah City, and the Shatt Al-Arab River at Al-Mekhraq. The research examines the hydraulic performance of groynes and analyzes their effects on velocity distribution, flow direction, and shear stress. The methodology includes data collection, model development, scenario simulation, and analysis. A 2D and 3D hydrodynamic models will be calibrated and validated with observed data. The developed numerical models will be used for multiple simulation scenarios, including baseline conditions without groynes and alternative configurations with groynes. The study is expected to contribute scientifically and practically by enhancing understanding of groyne behavior in fluvial and tidal environments and by developing context-specific design guidelines for sustainable riverbank protection in Iraq, supporting long-term resilience and effective water resources management.
Keywords
Groynes; Bank protection; Hydraulic modeling; Shear stress; Velocity distribution; Meandering channels; Fluvial systems.