1. ABOUT THE DATASET -------------------- Title: Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset - Dataset Creator(s): Ahmad Mohamadiyeh, Jeffrey Peakall, Michael Fairweather, Martyn Barnes, Timothy N. Hunter Organisation(s): University of Leeds Rights-holder(s):Unless otherwise stated, Copyright 2026 University of Leeds Publication Year: 2026 Description: Data relating to the study of the erosion behaviour and modelling of glass particle beds under impinging jet conditions. The study focuses on particle size effects and the onset of erosion. Ultrasonic profiling was implemented to scan and measure crater profiles. The results indicate that particle size largely affects crater dimensions and erosion behaviour. The standard erosion parameter works well for modelling cohesionless particles down to a certain size limit, beyond which cohesive forces become significant. A new parameter, Eτ, based on particle critical shear stress, is introduced for erosion modelling. The transition to cohesive behaviour observed in the smallest glass particles is successfully accounted for using Eτ. Cite as: Ahmad Mohamadiyeh, Jeffrey Peakall, Michael Fairweather, Martyn Barnes, Timothy N. Hunter (2025): Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset - Dataset. University of Leeds. [Dataset] https://doi.org/10.5518/1730 Related publication: Mohamadiyeh A, Peakall J,Fairweather M, Barnes M, Hunter TN. Erosion of granular sediments by submerged impinging jets: Particle size effectsand cohesion onset. AIChE J. 2026;e70336. doi:10.1002/aic.70336 Contact: Ahmad Mohamadiyeh, scamm@leeds.ac.uk 2. TERMS OF USE --------------- Copyright 2026 University of Leeds. Unless otherwise stated, this dataset is licensed under a Creative Commons Attribution 4.0 International Licence: https://creativecommons.org/licenses/by/4.0/. 3. PROJECT AND FUNDING INFORMATION ---------------------------------- Title: EPSRC Centre for Doctoral Training in Fluid Dynamics at Leeds Dates: Sept 19 - Mar 28 Funding organisation: EPSRC, UK and Sellafield Ltd. Grant no.: EP/S022732/1 4. CONTENTS ----------- File/Folder listing - file types Figure 8 - .mtl, .obj Figure 9 - .m, .mat Figures data - .xlsx 5. METHODS ---------- Please see corresponding paper for detail of methods. Data includes particle size and morpology analysis, yield shear stress measurements, experimental laboratory measurements of crater sizes, Light Detection and Ranging (LiDAR), and Ultrasonic Velocity Profiler (UVP)