Pulsating abrasive water jet cutting using a standard abrasive injection cutting head – Preliminary tests

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F21%3A00533334" target="_blank" >RIV/68145535:_____/21:00533334 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007/978-3-030-53491-2_20" target="_blank" >https://link.springer.com/chapter/10.1007/978-3-030-53491-2_20</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-53491-2_20" target="_blank" >10.1007/978-3-030-53491-2_20</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pulsating abrasive water jet cutting using a standard abrasive injection cutting head – Preliminary tests

Popis výsledku v původním jazyce

The paper focuses on research into disintegration effects of a pulsating abrasive water jet using a standard abrasive injection cutting head. Forced pulses of a frequency of 20 kHz were generated by a piezoelectric pulse generator using a sonotrode placed in a high pressure system in front of a water jet nozzle. Several variants of the water jet generation in the cutting head were investigated - a continuous and pulsating water jets without the presence of the focusing tube to verify the pulse formation in the mixing chamber. Consequently, an abrasive water jet and a pulsating abrasive water jet with an installed focusing tube were studied. At a selected water pressure of 70 MPa, an increase in cutting effects of the pulsating abrasive water jet on average by 15–20% compared to the continuous abrasive water jet of the same parameters was observed. The authors consider that the increase in efficiency is mainly caused by better distribution of abrasives over the focusing tube cross-section, largely due to separated slugs of water forming the pulsating water jet. In this regard, the authors see the potential of further increase in the efficiency of abrasive water jets. Modeling and simulation of the water flow using an appropriate computational system can contribute to achieving an optimal configuration of the pulsating abrasive water jet.

Název v anglickém jazyce

Pulsating abrasive water jet cutting using a standard abrasive injection cutting head – Preliminary tests

Popis výsledku anglicky

The paper focuses on research into disintegration effects of a pulsating abrasive water jet using a standard abrasive injection cutting head. Forced pulses of a frequency of 20 kHz were generated by a piezoelectric pulse generator using a sonotrode placed in a high pressure system in front of a water jet nozzle. Several variants of the water jet generation in the cutting head were investigated - a continuous and pulsating water jets without the presence of the focusing tube to verify the pulse formation in the mixing chamber. Consequently, an abrasive water jet and a pulsating abrasive water jet with an installed focusing tube were studied. At a selected water pressure of 70 MPa, an increase in cutting effects of the pulsating abrasive water jet on average by 15–20% compared to the continuous abrasive water jet of the same parameters was observed. The authors consider that the increase in efficiency is mainly caused by better distribution of abrasives over the focusing tube cross-section, largely due to separated slugs of water forming the pulsating water jet. In this regard, the authors see the potential of further increase in the efficiency of abrasive water jets. Modeling and simulation of the water flow using an appropriate computational system can contribute to achieving an optimal configuration of the pulsating abrasive water jet.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Advances in Water Jetting

ISBN

978-3-030-53490-5

ISSN

2195-4356

e-ISSN

2195-4364

Počet stran výsledku

11

Strana od-do

186-196

Název nakladatele

Springer

Místo vydání

Cham

Místo konání akce

Čeladná

Datum konání akce

20. 11. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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