Rapid Monitoring of River Hydrodynamics and Morphology using Acoustic Holography
Lead Research Organisation:
University College London
Department Name: Civil Environmental and Geomatic Eng
Abstract
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Organisations
Publications
Jalalabadi R
(2021)
Free surface flow over square bars at different Reynolds numbers
in Journal of Hydro-environment Research
Jalalabadi R
(2022)
Reynolds and dispersive shear stress in free-surface turbulent channel flow over square bars.
in Physical review. E
Luo Q
(2023)
Meandering of instantaneous large-scale structures in open-channel flow over longitudinal ridges
in Environmental Fluid Mechanics
Luo Q
(2023)
Hydrodynamics and turbulence of free-surface flow over a backward-facing step
in Journal of Hydraulic Research
Luo Q
(2023)
Water surface response to turbulent flow over a backward-facing step
in Journal of Fluid Mechanics
Xie Z
(2022)
Eulerian and Lagrangian transport by shallow-water breaking waves
in Physics of Fluids
Xie Z
(2022)
A conservative and consistent implicit Cartesian cut-cell method for moving geometries with reduced spurious pressure oscillations
in Journal of Computational Physics
Xie Z
(2021)
Numerical Investigation of Steep Focused Wave Interaction with a Vertical Cylinder Using a Cartesian Cut-cell Method
in International Journal of Offshore and Polar Engineering
Xie Z
(2021)
Simulation of Three-Dimensional Free-Surface Dam-Break Flows over a Cuboid, Cylinder, and Sphere
in Journal of Hydraulic Engineering
Xie Z
(2020)
Two-phase flow simulation of breaking solitary waves over surface-piercing and submerged conical structures
in Ocean Engineering
| Description | Numerical simulations of turbulent flow over topographic roughness showed significant correlation between the turbulence structure and the water surface deformation. As a result of flow separation near the channel bed water surface waves occur and the wave frequency matches the frequency of the vortex shedding process of flow separation. As a secondary process, the small-scale turbulence of the flow deforms the water surface in more random patters. |
| Exploitation Route | These results can be taken forward to design river monitoring equipment that would record and quantify surface waves, which can provide detailed information of the type of roughness that is found near the bed and can eventually lead to better flow monitoring. |
| Sectors | Environment |