Simulation of Sediment Transport in River Ogunpa Using Winxpro Software

Abstract

The numerical modelling of sediment transport of a river has long been developed. Rivers across Nigeria has interdicted researchers on modelling sediment transport. The environmental problem makes sediment transport study an important area among morphological mechanisms. This research studied the Simulation and modelling of sediment transport in River Ogunpa using WinXspro software. Suspended Sediment concentration was measured from November 2015 to June 2016 across the upstream, midstream and downstream of River Ogunpa using standard methods. The values of manning’s roughness factor used varied from 0.012 – 0.018. Sediment discharges (QS) were computed across the river using Acker and White approach. The average Suspended Sediment Concentration (SSC) across River Ogunpa varied from 2 – 64mg/L. The mathematical relationship for the sediment discharge value was QS = 64625Q + 12922. The estimated Qs varied from 0.00 – 23012kg/s. The variation in measured and validated discharge ranged between 0.95 – 4.19%. Sediment discharge across River Ogunpa was simulated using Winxpro software. The sediment discharge value can be a piece of useful information for dredging operation on River Ogunpa.