Results 1 to 10 of about 44,063 (164)
Air–water flows down stepped chutes: turbulence and flow structure observations [PDF]
International Journal of Multiphase Flow, 2002 Interactions between turbulent waters and atmosphere may lead to strong air-water mixing. This experimental study is focused on the flow down a staircase channel characterised by very strong flow aeration and turbulence. Interfacial aeration is characterised by strong air-water mixing extending down to the invert.
Hubert Chanson
exaly +6 more sources
Air-water interface area in self-aerated flows [PDF]
Water Research, 1994 In high velocity open channel flows, air is entrained at the free surface. This process is called self-aeration. In air-water flows the presence of air bubbles within the flow increases substantially the amount of air-water interface area and enhances the air-water transfer of atmospheric gases (e.g. nitrogen and oxygen).
Hubert Chanson
exaly +4 more sources
MOVEMENT OF TWO-PHASE GAS-LIQUID FLOW IN HORIZONTAL AND INCLINED PIPES [PDF]
Romanian Journal of Petroleum & Gas Technology, 2023 Two-phase flows are found in almost all areas of technology. For example, tubular evaporators, boiling water reactors, boiler blowdown systems, heaters, boilers, gas lift pumps, oil and geothermal wells, oil and gas pipelines, refrigerators, process ...
Begench Silapov, Iulian Nistor
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2023 Transient (highly unsteady) air–water two-phase flows and spring-like geysers have been one of the critical concerns in drainage pipeline systems, which may cause or exacerbate drainage flooding problems and associated damage consequences. In this paper,
Fei Li +4 more
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Remote Sensing of Aerated Flows at Large Dams: Proof of Concept
Remote Sensing, 2021 Dams are important for flood mitigation, water supply, and hydroelectricity. Every dam has a water conveyance structure, such as a spillway, to safely release extreme floods when needed. The flows down spillways are often self-aerated and spillway design
Matthias Kramer, Stefan Felder
doaj +1 more source
14C in cropland soil of a long-term field trial – experimental variability and implications for estimating carbon turnover [PDF]
SOIL, 2015 Because of their controlled nature, the presence of independent replicates, and their known management history, long-term field experiments are key to the understanding of factors controlling soil carbon.
J. Leifeld, J. Mayer
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Free surface aeration and development dependence in chute flows
Scientific Reports, 2022 The microscopic description of the mixture behaviour of air–water flow remains a challenge. It is not clear how to represent a complex two-phase interaction with the turbulent air–water structure development process. In this study, based on the air–water
Wangru Wei, Jun Deng
doaj +1 more source
Theoretical study of a double-slope solar still with solar air heater condenser
International Journal of Renewable Energy Development, 2023 Despite their limited water production and efficiency, double-slope solar stills are an appropriate solution for water scarcity in hot arid regions. Numerous studies have focused on enhancing the effectiveness of double-slope solar stills.
Ahmed Ghazy
doaj +1 more source
Experimental study on dam outlet works using a link-sleeve valve with air aspiration
Mechanical Engineering Journal, 2022 In recent years, the importance of hydraulic power generation has further increased because of the movement toward decarbonization and the need to control floods in Japan. For this reason, demand for dam discharge valves has been increasing.
Takafumi SHIMODA +6 more
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Features of the thermal regime formation in the downcast shafts in the cold period of the year
Записки Горного института, 2021 In the cold period of the year, to ensure the required thermal regime in underground mine workings, the air supplied to the mine is heated using air handling systems.
Artem V. Zaitsev +2 more
doaj +1 more source