PIV Analysis of Cavitating Flow Behind Square Multi-Orifice Plates

11 pages•Published: September 20, 2018

Abstract

Currently, in water supply engineering, the conventional technique of disinfection by chlorination is used to kill pathogenic microorganisms in raw water. However, chlorine reacts with organic compounds in water and generates disinfection byproducts (DBPs) such as trihalomethanes (THMs), haloacetic acids (HAAs) etc. These byproducts are of carcinogenic, teratogenic and mutagenic effects, which seriously threaten human health. Hydrodynamic cavitation is a novel technique of drinking water disinfection without DBPs. Turbulence structures of cavitating flow were observed by the Particle Image Velocimetry (PIV) technique in a self-developed hydrodynamic cavitation device due to square multi- orifice plates, including effects of orifice number and orifice layout on velocity distribution, turbulence intensity and Reynolds stress, which aimed at uncovering mechanism of killing pathogenic microorganisms by hydrodynamic cavitation.

Keyphrases: cavitating flow, piv, reynolds stress, square multi orifice plate, turbulence intensity, velocity distribution

In: Goffredo La Loggia, Gabriele Freni, Valeria Puleo and Mauro De Marchis (editors). HIC 2018. 13th International Conference on Hydroinformatics, vol 3, pages 615-625.

Links:	https://easychair.org/publications/paper/h7Jx
	https://doi.org/10.29007/fhdg

BibTeX entry

@inproceedings{HIC2018:PIV_Analysis_Cavitating_Flow,
  author    = {Zhiyong Dong and Wenqian Zhao},
  title     = {PIV Analysis of Cavitating Flow Behind Square Multi-Orifice Plates},
  booktitle = {HIC 2018. 13th International Conference on Hydroinformatics},
  editor    = {Goffredo La Loggia and Gabriele Freni and Valeria Puleo and Mauro De Marchis},
  series    = {EPiC Series in Engineering},
  volume    = {3},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2330},
  url       = {/publications/paper/h7Jx},
  doi       = {10.29007/fhdg},
  pages     = {615-625},
  year      = {2018}}

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