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Modeling the Liquid Volume Flux in Bubbly Jets Using a Simple Integral Approach
Publisher: American Society of Civil Engineers
Abstract: This study presents a simple model to predict the liquid volume flux induced by round bubbly jets. The model is based on the classical integral equations for bubble plumes, but also accounts for the momentum at the source ...
Effect of Artificial Circulation on the Removal Kinetics of Cyanobacteria in a Hypereutrophic Shallow Lake
Publisher: American Society of Civil Engineers
Abstract: This study consisted of two parts. First, pre-aeration tests were conducted to assess the space-time variability of water quality in a shallow lake. Chlorophyll-a concentration and cyanobacteria cell density varied from ...
Horizontal Injection of Gas–Liquid Mixtures in a Water Tank
Publisher: American Society of Civil Engineers
Abstract: Experiments were carried out to investigate the behavior of horizontal gas–liquid injection in a water tank. Measurements of bubble properties and mean liquid flow structure were obtained. The turbulence in the liquid phase ...
Effect of Tank Size and Geometry on the Flow Induced by Circular Bubble Plumes and Water Jets
Publisher: American Society of Civil Engineers
Abstract: Ambient flow field and circulation patterns induced by circular bubble plumes and water jets in tanks of different sizes were studied in rectangular and square water tanks. A nonstationary nature of the flow was observed ...
Computational Simulation of the Flow Induced by Water Leaks in Pipes
Publisher: American Society of Civil Engineers
Abstract: Despite recent advances in leak detection in water supply systems, previous studies focused mainly on material aspects or orifice opening characteristics. This study evaluated geometric, hydraulic, and hydrodynamic factors ...
Dissolved Oxygen Downstream of an Effluent Outfall in an Ice-Covered River: Natural and Artificial Aeration
Publisher: American Society of Civil Engineers
Abstract: In ice-covered rivers, dissolved oxygen (DO) might fall below critical levels for aquatic biota in the absence of surface aeration, combined with low winter flow conditions and reduced photosynthesis rates. Open-water ...
The Bell-Shaped Unit Hydrograph for Overland Planes
Publisher: ASCE
Abstract: This study presents a conceptual model to obtain the shape of the unit hydrograph in a small rectangular basin with a collecting channel on one side of the flow plane. In classical hydrology, flows are classified as linear, ...
Hydraulics of Fluidized Cavities in Porous Matrices: Cavity Heights and Stability for Upward Water Jets
Publisher: ASCE
Abstract: Theoretical and experimental results for the evolution of cavities generated by upward vertical leakage jets in porous media are presented. The formulation is based on the conservation principles of mass, momentum, and ...
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