Effects of bridge pier friction on flow reduction in a navigation channel
Pier friction, Flow reduction, Hydrodynamic model, Drogue tracking
The Rambler Channel is an 8-kilometer long navigation waterway. A number of bridges are built on piers over the channel; the presence of bridge piers changes the nearby flow regime and induces friction in the ambient tidal currents. This paper presents a hydrodynamic model to study the effects of bridge pier friction on flow reduction in the Rambler Channel. Energy losses due to the bridge piers are estimated by introducing additional quadratic friction terms into momentum equations. Comparisons of the tidal flow patterns, changes in flow rate through the channel, and flow paths in the surface water layer by drogue tracking simulations for situations with and without bridges are presented.
Journal of Water Resource and Hydraulic Engineering
Pun, K.,& Law, S. (2015). Effects of bridge pier friction on flow reduction in a navigation channel. Journal of Water Resource and Hydraulic Engineering, 4 (4), 326-331. Retrieved from http://repository.vtc.edu.hk/thei-fac-sci-tech-sp/370