DESIGN ASPECTS AND PERFORMANCE CHARACTERISTICS OF RADIAL FLOW ENERGY DISSIPATORS
THE PRESENT INVESTIGATION WAS UNDERTAKEN TO EXPLORE THE FEASIBILITY AND PERFORMANCE CHARACTERISTICS OF A RADIAL FLOW BASIN FOR USE AS A FLOW ENERGY DISSIPATOR, AND TO DEVELOP DESIGN CONCEPTS APPLICABLE TO HIGHWAY CULVERTS. THE RADIAL FLOW ENERGY DISSIPATOR INCORPORATED A VERTICALLY CURVED DROP SECTION WHICH INDUCED RADIAL SUPERCRITICAL FLOW IN A RAPIDLY FLARED BASIN WHERE AN ARC OF A CIRCULAR HYDRAULIC JUMP WAS FORMED. HIGH PRESSUES WERE DEVELOPED WHEN THE FLOW IMPINGED ON THE BEGINNING OF THE BASIN FLOOR, THUS FORCING THE FLOW TO SPREAD LATERALLY AND STAY IN CONTACT WITH THE FLARED WINGWALLS OF THE STILLING STRUCTURE. EXPERIMENTAL INVESTIGATIONS INDICATED THE EFFECTIVENESS OF THE RADIAL FLOW ENERGY DISSIPATOR IN STABILIZING THE JUMP, REDUCING THE ENERGY OF HIGH- VELOCITY FLOW, AND SPREADING THE FLOW WITHIN THE BASIN. BASED ON THE EXPERIMENTAL RESULTS AND A SEMI- ANALYTICAL TREATMENT OF THE HYDRAULIC CHARACTERISTICS OF THE RADIAL FLOW BASIN A DESIGN PROCEDURE WAS DEVELOPED WHICH MAY BE FOLLOWED FOR THE SELECTION OF THE IMPORTANT DIMENSIONS OF A RADIAL FLOW DISSIPATOR UNDER A GIVEN SET OF FIELD CONDITIONS. A SIMPLIFIED FORM OF THE CIRCULAR HYDRAULIC JUMP EQUATION WAS OBTAINED WHICH WAS THE BASIS FOR THE DESIGN PROCEDURE. /AUTHOR/
- Record URL:
-
-
Corporate Authors:
University of Texas, Austin
Center for Highway Research, 200 West 21st Street
Austin, TX United States 78712 -
Authors:
- Meshgin, K
- Moore, W L
- Publication Date: 1970-8
Media Info
- Features: Figures; References;
- Pagination: 142 p.
Subject/Index Terms
- TRT Terms: Culverts; Dissipation; Flow; Hydraulic jump; Radials
- Old TRIS Terms: Basins; Radial flow
- Subject Areas: Bridges and other structures; Energy; Highways; Hydraulics and Hydrology;
Filing Info
- Accession Number: 00204443
- Record Type: Publication
- Report/Paper Numbers: 116-2F
- Files: TRIS
- Created Date: May 29 1972 12:00AM