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Effects of nanoparticles on hydraulic cavitation

Chen, Min Rui ; Qian, Jin Yuan LU ; Wu, Zan LU ; Yang, Chen ; Jin, Zhi Jiang and Sunden, Bengt LU (2018) 11th International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2018 In MATEC Web of Conferences 240.
Abstract

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... (More)

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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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018)
series title
MATEC Web of Conferences
volume
240
article number
03004
publisher
EDP Sciences
conference name
11th International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2018
conference location
Cracow, Poland
conference dates
2018-05-21 - 2018-05-24
external identifiers
  • scopus:85058209379
DOI
10.1051/matecconf/201824003004
language
English
LU publication?
yes
id
6fc19083-19bf-40f5-9d5e-7679e1f46364
date added to LUP
2019-01-04 12:38:39
date last changed
2020-01-13 01:20:04
@inproceedings{6fc19083-19bf-40f5-9d5e-7679e1f46364,
  abstract     = {<p>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.</p>},
  author       = {Chen, Min Rui and Qian, Jin Yuan and Wu, Zan and Yang, Chen and Jin, Zhi Jiang and Sunden, Bengt},
  booktitle    = {XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018) },
  language     = {eng},
  month        = {11},
  publisher    = {EDP Sciences},
  series       = {MATEC Web of Conferences},
  title        = {Effects of nanoparticles on hydraulic cavitation},
  url          = {http://dx.doi.org/10.1051/matecconf/201824003004},
  doi          = {10.1051/matecconf/201824003004},
  volume       = {240},
  year         = {2018},
}