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2. Engineer Research and Development Center (ERDC)
3. Coastal and Hydraulics Laboratory (CHL) - (before 9/1981 - present)
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5. Technical Report

Title:	Lateral inflow in supercritical flow
Authors:	Stockstill, Richard L.
Keywords:	Clark County, Nevada Flood-control channels Hydraulic design Lateral inflow Supercritical flow
Publisher:	Coastal and Hydraulics Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Series/Report no.:	ERDC/CHL TR ; 07-10.
Description:	Technical report Lateral culverts are used to introduce storm drain flow into urban channels if the culvert flow is less than 10 percent of the main channel flow. Confluences of supercritical flow are complicated by standing waves that are generated at boundary alignment changes. The confluence addressed in this report is the case where culvert flow is introduced into a rectangular- shaped channel via a lateral. Even when the culvert discharge is less than 10 percent of the main channel flow, the momentum effects can produce significant bulking of the main channel flow. An understanding of the flow conditions in the vicinity of laterals is essential in an economical design of these structures. The current research evaluated a modeling method to determine if it is appropriate for simulating the flow depth increases attributed to lateral inflows in high-velocity channels. This report describes a series of laboratory experiments followed by numerical simulations. Following model validation, various geometric and hydraulic conditions were studied to evaluate hydraulic conditions such as location and magnitude of peak depths. Knowledge of these flow conditions is necessary for hydraulic design of channel walls (height and length) required to contain flows in the vicinity of laterals.
Rights:	Approved for public release; distribution is unlimited.
URI:	http://hdl.handle.net/11681/7699
Appears in Collections:	Technical Report