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Reducing Sediment Deposition on Columned Vortex-Settling Basin Floor by Installing Vanes
Publisher: ASCE
Abstract: Vortex-settling basins (VSBs) have been constructed with support columns under the deflector to enhance the structural stability of the deflector. This paper presents a retrofit for such columned VSBs by installing vanes ...
Air Entrainment in a Tall Plunging Flow Dropshaft
Publisher: American Society of Civil Engineers
Reducing Sediment Deposition on Deflector in Vortex Settling Basins
Publisher: ASCE
Abstract: This paper presents a retrofit for vortex settling basins (VSBs) by perforating the deflector to reduce sediment deposition and thereby lowering VSB failure risks. Experiments were conducted for two retrofitted VSBs with ...
Mass Transfer of Gas Bubbles Rising in Stagnant Water
Publisher: ASCE
Abstract: This paper presents an analytical study of mass transfer from a single bubble rising in stagnant water and its size variation. A model for bubble–water mass transfer was established and validated using the experimental ...
Experimental Study of the Breakup of a Free-Falling Turbulent Water Jet in Air
Publisher: American Society of Civil Engineers
Abstract: An experimental study on the breakup of a turbulent round-water jet in still air with a nozzle Reynolds number of 145,600 and Weber number of 10,400 is reported. The visual structure of the falling water jet was recorded ...
Energy Dissipation in Circular Drop Manholes
Publisher: American Society of Civil Engineers
Abstract: Energy dissipation is one of the main considerations in the design of drop manholes and is closely related to the flow regimes observed. Four flow regimes in a drop manhole are classified according to different flow ...
Axis Switching of Free-Falling Elliptical Water Jets
Publisher: ASCE
Abstract: This study experimentally investigated the axis switching of free-falling water jets issued from an elliptical nozzle with an aspect ratio of 1.6. High-speed photography was used to capture the flow behaviors. The ...
Water Column Oscillation in Partially Immersed Vertical Tubes
Publisher: American Society of Civil Engineers
Abstract: Theoretical and laboratory studies were presented for the water column oscillation in a vertical tube partially immersed in a reservoir. Three types of oscillations were studied, with the top of the tube being fully open ...
Exploring Hydraulic Impacts of Downstream Water Levels on the Drainage Capacity of a Stormwater Pipe
Publisher: American Society of Civil Engineers
Abstract: This paper designs and builds a stormwater pipe-river/channel experimental system at the first attempt to observe hydraulic dynamics between pipe flow and downstream water levels under different steady state conditions. ...