Study on the effect of alumina nano-fluid on sharp-edge orifice flow characteristics in both cavitations and non-cavitations turbulent flow regimes

Kabeel, A.E.; Abdelgaied, Mohamed

doi:10.1016/j.aej.2016.02.034

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…Carpenter et al [10] conducted experiments in detail to explore the effects of geometrical parameters on the production of oil in water emulsion. Kabeel et al [11] investigated the effects of the alumina nanofluid concentration on the characteristics of sharp-edge orifice flow, basing on a model of a single-hole orifice plate. Shaaban [12] optimized the orifice flowmeter for liquid hydrogen and obtained a novel orifice flowmeter.…”

Section: Introductionmentioning

confidence: 99%

Effects of nanoparticles on hydraulic cavitation

Chen

Qian

et al. 2018

MATEC Web Conf.

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When liquids flowing through a throttling element, such as a perforated plate, the velocity increases and the pressure decreases. If the pressure is below the saturated vapor pressure, the liquid will vaporize into small bubbles, which is called hydraulic cavitation. In fact, vaporization nucleus is another crucial condition for vaporizing. The nanoparticles contained in the nanofluids play a significant role in vaporization of liquids. In this paper, the effects of the nanoparticles on hydraulic cavitation are investigated. Firstly, a geometric model of a pipe channel equipped with a perforated plate is established. Then with different nanoparticle volume fractions and diameters, the nanofluids flowing through the channel is numerically simulated based on a validated numerical method. The operation conditions, such as the temperature and the pressure ratio of inlet to outlet, are the considered variables. As a significant parameter, cavitation numbers under different operation conditions are achieved to investigate the effects of nanoparticles on hydraulic cavitation. Meanwhile, the contours are extracted to research the distribution of bubbles for further investigation. This study is of interests for researchers working on hydraulic cavitation or nanofluids.

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Section: Introductionmentioning

confidence: 99%

Effects of nanoparticles on hydraulic cavitation

Chen

Qian

et al. 2018

MATEC Web Conf.

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“…In terms of nanofluids cavitation, many investigations have been carried out. Kabeel et al [17] investigated the effects of the alumina nanoparticles concentration on the characteristics of a sharp-edge orifice flow, basing it on a model of a single-hole orifice plate, and the changes of some parameters representing the flow characteristics were obtained. Gu et al [18] applied the acoustic method to experimentally investigate the effects of SiO 2 nanoparticles on cavitation inception.…”

Section: Introductionmentioning

confidence: 99%

The Hydraulic Cavitation Affected by Nanoparticles in Nanofluids

Chen

Qian

et al. 2018

Computation

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When liquids flow through a throttling element, the velocity increases and the pressure decreases. At this point, if the pressure is below the saturated vapor pressure of this liquid, the liquid will vaporize into small bubbles, causing hydraulic cavitation. In fact, a vaporization nucleus is another crucial condition for vaporizing, and particles contained in the liquid can also work as the vaporization nuclear. As a novel heat transfer medium, nanofluids have attracted the attention of many scholars. The nanoparticles contained in the nanofluids play a significant role in the vaporization of liquids. In this paper, the effects of the nanoparticles on hydraulic cavitation are investigated. Firstly, a geometric model of a perforated plate, the throttling element in this paper, is established. Then with different nanoparticle volume fractions and diameters, the nanofluids flowing through the perforated plate are numerically simulated based on a validated numerical method. The operation conditions, such as the ratio of inlet to outlet pressures and the temperature are the considered variables. Additionally, cavitation numbers under different operating conditions are achieved to investigate the effects of nanoparticles on hydraulic cavitation. Meanwhile, the contours are extracted to research the distribution of bubbles for further investigation. This study is of interest for researchers working on hydraulic cavitation or nanofluids.

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