Search
Now showing items 1-10 of 28
Behavior of Submerged Ogee Crest Weir Discharge Coefficients
Publisher: American Society of Civil Engineers
Abstract: Weir head-discharge relationships are typically described using the discharge coefficient-dependent standard weir equation. The submerged weir (tailwater exceeds the weir crest elevation) head-discharge relationship can ...
Recommendations for Teaching a Successful Design-Based Course: Hydraulic Structure Design
Publisher: ASCE
Abstract: Design-based courses often have more latitude with respect to implementing interesting and unique teaching styles and curricula; they can also provide opportunities for broader-context problem solving, thereby improving ...
Performance of Submerged Ogee-Crest Weir Head-Discharge Relationships
Publisher: American Society of Civil Engineers
Abstract: Submergence is defined as the ratio of the tailwater to the headwater, both measured relative to the weir crest. The performance of published submerged ogee-crest head-discharge relationships was investigated in this study. ...
Determining Air Demand for Small- to Medium-Sized Embankment Dam Low-Level Outlet Works
Publisher: American Society of Civil Engineers
Abstract: Air vents in low-level outlet works are installed downstream of control gates or valves to mitigate subatmospheric pressures locally and reduce the potential for damaging cavitation. Published air-vent-sizing methods, which ...
Piano Key Weir Submergence in Channel Applications
Publisher: American Society of Civil Engineers
Abstract: Weir submergence can influence head-discharge relationships for weirs used in channel applications when high tailwater conditions exist owing to a downstream control. Weir submergence describes a condition in which the ...
Laboratory Study of Fish Passage and Discharge Capacity in Slip-Lined, Baffled Culverts
Publisher: American Society of Civil Engineers
Abstract: Culvert rehabilitation is a cost-effective alternative to culvert replacement for many applications where the culvert has reached the end of its useful life. When a profile-walled existing (host) culvert is relined with a ...
Fish Passage Behavior for Severe Hydraulic Conditions in Baffled Culverts
Publisher: American Society of Civil Engineers
Abstract: Laboratory tests were conducted with brown trout to evaluate their ability to pass through a small, baffled prototype-scale culvert under a variety of culvert slopes and discharge conditions. The culvert was 18.3 m long ...
Comparison of Piano Key and Rectangular Labyrinth Weir Hydraulics
Publisher: American Society of Civil Engineers
Abstract: The piano key or PK weir represents a relatively new hydraulic structure in both research and practice. There is currently a limited understanding regarding the influence of the large number of PK weir geometric parameters ...
Arced Labyrinth Weirs
Publisher: American Society of Civil Engineers
Abstract: The discharge capacity and hydraulic efficiency of a labyrinth weir can be increased with an Arced cycle configuration. An Arced geometric layout for labyrinth weirs is presented, including nomenclature for arc-specific ...
Slip-Lined Culvert Inlet End Treatment Hydraulics
Publisher: American Society of Civil Engineers
Abstract: Relined culverts must be able to pass the design flood while meeting the necessary embankment freeboard condition. For inlet and outlet control culvert flow conditions, the discharge capacity of a slip-lined culvert is ...