Author(s): Hui Ling Wong; Hubert Chanson
Linked Author(s): Hubert Chanson
Keywords: Culvert Box Culvert Rectangular Culvert Turbulence Open Channel Flows Fish Passage Environmental Fluid Mechanics Hydrodynamics Field Investigation Fieldwork
Abstract: Culverts are hydraulic structures designed to carry large flow of freshwater through an embankment. Despite its importance, studies to date were carried out in laboratory settings or through numerical modelling. The existing literature covers little to no publications relating to field investigations of the flow field or velocity measurements in standard culverts. Detailed field measurements of the hydrodynamics characteristics in a prototype culvert are crucial for applications such as fish passage. Herein, a field investigation is carried out to study the hydrodynamics of the low-velocity zones of a box culvert barrel for fish passage applications. Field preparation such as site surveys, instrumental mounting and setup, ADV configuration test and sediment sampling were discussed and detailed in this paper. Sieve analyses were performed on the sediments collected from each cell of the culvert to understand the granulometry of the soil. The result of the analysis was detailed in this paper, providing implicit, yet interesting knowledge of the hydrodynamics characteristics in each of the culvert cells.
Year: 2025