Validation of Existing Bed Load Transport Formulas Using In-Sewer Sediment

Numerical modelling of sediment bed aggradation in open rectangular drainage channels

“…Campisano et al advance of the front midpoint. In agreement with De Sutter et al (2003), Ackers formula is observed to slightly underestimate the transport of sediment. Evaluation of the sediment transport rate obtained with the various formulas is reported in Figure 5.…”

“…Various sediment transport formulas have been extensively implemented in these models (Ackers et al 1996, De Sutter et al 2003 in order to simulate transport and deposition during steady flows and during unsteady flow conditions driven by storm water events. However, such models have not been tested specifically for the simulation of aggradation processes in open drains.…”

“…For instance, De Sutter et al (2003) indicated that the direct transfer of the Ackers formula (Ackers 1984) to drainage systems may be inappropriate since it can provide a significant over/under estimation of sediment discharge for finer/ coarser sediment, respectively. For instance, De Sutter et al (2003) indicated that the direct transfer of the Ackers formula (Ackers 1984) to drainage systems may be inappropriate since it can provide a significant over/under estimation of sediment discharge for finer/ coarser sediment, respectively.…”

Experimental and numerical analysis of the scouring effects of flushing waves on sediment deposits

“…Recently, some authors (De Sutter et al, 2003) stated that the direct transfer to sewers of such fluvial relationships as the Ackers' formula (Ackers, 1991) may result as inappropriate. Differently, other well established literature formulas such as the ones due to Meyer-Peter and Müller (1948) and to Kalinske (1947) have been indicated by many authors as also suitable for sewer sediments (Bertrand-Krajewski et al, 1993;Ashley and Verbanck, 1996;Lin and Le Guennec, 1996).…”

Field study of dynamic behaviour of sediment in combined sewer overflow chambers

“…A number of studies have been conducted on hydraulic performance and/or sediment retention efficiency of CSO chambers by physical laboratory modelling and computational fluid dynamics modelling (Dufresne et al, 2009;Harwood and Saul, 2001;Stovin and Saul, 2000). However, sewer sediment phenomena are not well understood, and as a consequence current sediment transport modelling techniques can provide predictions that are significantly different from observations (Ashley et al, 2004;De Sutter et al, 2003). The sediment scour process in storm water structures also differs from the unidirectional scour and sediment transport process that occurs in pipes and flumes (Avila et al, 2011).…”