Results 11 to 20 of about 1,884,735 (296)

Air entrainment in a vertical dropshaft with limited air supply

open access: yesTheoretical and Applied Mechanics Letters, 2018
Dropshafts are vertical structures widely used in urban drainage systems and buildings for water transportation. In this paper, a physical model study was conducted to investigate the air entrainment in the dropshaft under various flow regimes with and ...
Qiang Ding, Yiyi Ma, David Z. Zhu
doaj   +2 more sources

Numerical modelling of air entrainment: In hydraulic engineering [PDF]

open access: yes, 2021
Air entrainment in water flows is a natural phenomenon prone to take place when energy is dissipated in flowing water. In nature, air entrainment appears as white water in waterfalls or in waves breaking on the beach.
Almeland, Silje Kreken
core   +1 more source

Aerosol-boundary layer interaction modulated entrainment process

open access: yesnpj Climate and Atmospheric Science, 2022
Aerosol-boundary layer interactions play an important role in affecting atmospheric thermodynamics and air pollution. As a key factor in dictating the development of the boundary layer, the entrainment process in the context of aerosol-boundary layer ...
Tianning Su   +5 more
doaj   +1 more source

Numerical analysis on combustion characteristics of diffusion jet flame under different gravity environments

open access: yesCase Studies in Thermal Engineering, 2023
To study the combustion characteristics of turbulent jet flames under different gravity environments, the centerline temperature distribution curve and air entrainment rate of turbulent jet flame from microgravity to hyper gravity was carried out by CFD ...
Yang Gao   +6 more
doaj   +1 more source

Induced aeration flow over stepped spillways: mean pressures, air entrainment and flow behavior

open access: yesRBRH, 2021
Stepped spillways can dissipate a great amount of energy during the flow passage over the chute, however these structures have limited operation due to the risk of cavitation damage.
Carolina K. Novakoski   +7 more
doaj   +1 more source

On air-entraining flow in pump's sump with a vertical suction pipe below critical submergence

open access: yesJournal of Fluid Science and Technology, 2019
In pump’s sumps, the air entrainment sometimes occurs. Such flow accompanying the air entrainment becomes complicated owing to both of its unsteadiness with poor periodicity and its fully-three-dimensionality.
Katsuya HIRATA   +4 more
doaj   +1 more source

Advances in the studies of cloud entrainment and mixing process

open access: yes暴雨灾害, 2021
The entrainment and mixing process characterizes the interaction between cloud and ambient air, which is one of the most uncertain processes in cloud physics and dynamics.
Chunsong LU, Xiaoqi XU
doaj   +1 more source

Dust emission by powder handling: Comparison between numerical analysis and experimental results [PDF]

open access: yes, 2009
The dust generation occurring during the handling of bulk materials in free falls or at the impact on a stockpile can be a source of danger for the operators health.
Charru, François   +5 more
core   +1 more source

Two-phase numerical study of the flow field formed in water pump sump: influence of air entrainment [PDF]

open access: yes, 2009
In a pump sump it is imperative that the amount of non-homogenous flow and entrained air be kept to a minimum. Free air-core vortex occurring at a water-intake pipe is an important problem encountered in hydraulic engineering.
Abustam, Effendi   +28 more
core   +1 more source

Modeling of Kinetics of Air Entrainment in Water Produced by Vertically Falling Water Flow

open access: yesMedžiagotyra, 2014
This study analyzes the process of air entrainment in water caused by vertically falling water flow in the free water surface. The new kinetic model of air entrainment in water was developed.
Adelė VAIDELIENĖ   +2 more
doaj   +1 more source

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