The objective of this study is to determine the inlet design coefficient for the Snap-Tite Hydro-Bell.
The inlet design coefficient is necessary to accurately predict head loss, or flow, through a high-density polyethylene (HDPE) Snap-Tite Culvert Relining pipe using the Hydro-Bell in submerged inlet and un-submerged outlet conditions.
The inlet coefficient was determined by measuring velocity and pressure drop across the Hydro-Bell inlet device. Measurements were taken in triplicates at head pressures ranging from 1 to 7.5 ft of hydraulic head.
This study determined that the Hydro-Bell’s increase in flow ranged from 15% to 34% (in relation to pressure conditions).
The increase in flow is compared to a standard square end inlet condition typically found in culvert applications.
This report concludes that the Hydro-Bell is effective at increasing the flow in culverts.