Results 11 to 20 of about 304,926 (297)
Improvement of hydro-turbine draft tube efficiency using vortex generator
Advances in Mechanical Engineering, 2015 Computational fluid dynamics simulation was employed in a hydraulic turbine (from inlet tube to draft tube). The calculated turbine efficiencies were compared with measured results, and the relative error is 1.12%.
Xiaoqing Tian +3 more
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Computational fluid dynamics simulation and geometric design of hydraulic turbine draft tube
Advances in Mechanical Engineering, 2015 Any hydraulic reaction turbine is installed with a draft tube that impacts widely the entire turbine performance, on which its functions are as follows: drive the flux in appropriate manner after it releases its energy to the runner; recover the suction ...
JB Sosa +3 more
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Energy transformation and flow topology in an elbow draft tube
Applied and Computational Mechanics, 2012 Paper presents a computational study of energy transformation in two geometrical configurations of Kaplan turbine elbow draft tube. Pressure recovery, hydraulic efficiency and loss coefficient are evaluated for a series of flow rates and swirl numbers ...
Štefan D. +3 more
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Redesign of an existing hydropower draft tube
, 2005 Validerat; 20101217 (root)
Hellström, J. Gunnar I.
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Experiments and modelling of a draft tube airlift reactor operated at high gas throughputs [PDF]
, 2013 One-dimensional modelling of global hydrodynamics and mass transfer is developed for an annulus sparged draft tube airlift reactor operating at high gas throughputs.
Colombet, Damien +3 more
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Particle Cycle Times in Draft Tube Conical Spouted Beds
Chemical Engineering Transactions, 2014 A hydrodynamic study of conical spouted beds equipped with draft tube has been carried out for glass beads. Runs have been carried out in conical spouted beds of different geometry according to a factorial design of experiments.
I. Estiati, H. Altzibar, M. Olazar
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Blending of Newtonian and Shear-Thinning Fluids in a Tank Stirred with a Helical Screw Agitator [PDF]
, 2000 Newtonian and non-Newtonian laminar fluid flow has been simulated using Computational Fluid Dynamics for a cylindrical vessel stirred by a helical screw agitator.
Aubin, Joelle +3 more
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Mathematics, 2022 The installation of new and revitalization of existing hydropower requires the optimal design of hydraulic turbine parts, which were previously mostly based on simplified analytical methods and engineering practices.
Ivana Lučin +3 more
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Renmin Zhujiang, 2023 In order to explore the influence of the opening of the movable guide vane on the flow and pressure pulsation in the draft tube of the Francis turbine,the steady and unsteady numerical simulations were carried out by establishing a three-dimensional full-
REN Haibo, YU Bo, WANG Kui, WANG Luobin
doaj
Effect of draft tube diameter on nitrogen removal from domestic sewage in a draft tube type reactor
Water Science and Technology, 1998 The effect of the ratio of draft tube diameter to reactor diameter ( D i / D o ) on the efficiency of nitrogen removal from domestic sewage is discussed based on liquid-circulating flow rate and continuous treatment data. More than 2.5 minutes of circulation time in the annulus part, which is required to create an anoxic zone, could be maintained
Yoshio Okuno +3 more
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