Publication result detail

Hydraulic characteristics of the convergent-divergent nozzle with the inner electrode in cavitating conditions

BALKO, M.; RUDOLF, P.; MONKOVÁ, P.

Original Title

Hydraulic characteristics of the convergent-divergent nozzle with the inner electrode in cavitating conditions

English Title

Hydraulic characteristics of the convergent-divergent nozzle with the inner electrode in cavitating conditions

Type

Paper in proceedings outside WoS and Scopus

Original Abstract

The knowledge of hydraulic characteristics of convergent-divergent nozzles will lead to the optimal design of a nozzle for generating a cavitation cloud. Such a nozzle is a crucial component of the CaviPlasma device, which aims to tackle the ever-growing water treatment and purification issue. To measure the characteristics, a closed hydraulic circuit was used to measure pressure differences before and behind the nozzle, and the flow rate. The characteristics were then developed based on the calculated loss coefficient ξ and the cavitation number σ. Three different nozzle designs were tested (with diameters of necks 3 mm, 4 mm, and 5 mm respectively), and multiple positions of the inner electrode were set for each design. This resulted in several characteristic curves for each design and electrode position. The study will contribute to the development of an optimal nozzle for the CaviPlasma device, enhancing its efficiency in water treatment and purification.

English abstract

The knowledge of hydraulic characteristics of convergent-divergent nozzles will lead to the optimal design of a nozzle for generating a cavitation cloud. Such a nozzle is a crucial component of the CaviPlasma device, which aims to tackle the ever-growing water treatment and purification issue. To measure the characteristics, a closed hydraulic circuit was used to measure pressure differences before and behind the nozzle, and the flow rate. The characteristics were then developed based on the calculated loss coefficient ξ and the cavitation number σ. Three different nozzle designs were tested (with diameters of necks 3 mm, 4 mm, and 5 mm respectively), and multiple positions of the inner electrode were set for each design. This resulted in several characteristic curves for each design and electrode position. The study will contribute to the development of an optimal nozzle for the CaviPlasma device, enhancing its efficiency in water treatment and purification.

Keywords

Hydrodynamic cavitation, convergent-divergent nozzle, axial electrode, water treatment

Key words in English

Hydrodynamic cavitation, convergent-divergent nozzle, axial electrode, water treatment

Authors

BALKO, M.; RUDOLF, P.; MONKOVÁ, P.

RIV year

2025

Released

20.10.2023

Book

MATEC Web of Conferences, 22nd Conference on Power System Engineering

Pages count

7

URL

https://www.matec-conferences.org/articles/matecconf/abs/2023/10/matecconf_pse23_00002/matecconf_pse23_00002.html

BibTex

@inproceedings{BUT194141,
  author="Marek {Balko} and Pavel {Rudolf} and Paulína {Monková}",
  title="Hydraulic characteristics of the convergent-divergent nozzle with the inner electrode in cavitating conditions",
  booktitle="MATEC Web of Conferences, 22nd Conference on Power System Engineering",
  year="2023",
  number="Volume 383",
  pages="7",
  doi="10.1051/matecconf/202338300002",
  url="https://www.matec-conferences.org/articles/matecconf/abs/2023/10/matecconf_pse23_00002/matecconf_pse23_00002.html"
}