Erosive wear behavior of sandstone under low-pressure pulsating water jet

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F25%3A00605284" target="_blank" >RIV/68145535:_____/25:00605284 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.triboint.2024.110411" target="_blank" >https://doi.org/10.1016/j.triboint.2024.110411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.triboint.2024.110411" target="_blank" >10.1016/j.triboint.2024.110411</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Erosive wear behavior of sandstone under low-pressure pulsating water jet

Popis výsledku v původním jazyce

The consequences of erosion caused by the mutual interaction of water droplets with sedimentary rock such as sandstone are not satisfactorily elucidated in the literature. This topic is important from many points of view, and its practical applications include the protection of cultural heritage or the targeted removal of material. This study assessed the wear rates on Božanov sandstone caused by multiple-droplet impingement, with water droplet impact speeds of v = 58 m/s, 92 m/s and 127 m/s corresponding to supply pressure of p = 2, 5 and 10 MPa, respectively. As a droplet generator, a pulsating water jet with a frequency of 20 kHz was used. Water droplets determined by a nozzle diameter d = 1 mm were distributed along a linear trajectory three times for each run. The water droplet impact density was varied by changing the traverse speed. In order to investigate the development of integrity damage, the samples were scanned using a digital microscope. Material loss was determined via weighing and compared using a non-contact measuring method. The results showed that the erosion responses, such as erosion depth and volume removed, increased with an increase in the supply pressure and a decrease in traverse speed. Moreover, it was found that at the lowest supply pressure p = 2 MPa, the effect of the number of drops density is invariant for traverse speeds in the range of 1–10 mm/s. When the pressure was increased from 5 to 10 MPa, the material removal values tripled. This significant increase may be attributed to the formation of an abrasive pulsating water stream within the created groove.

Název v anglickém jazyce

Erosive wear behavior of sandstone under low-pressure pulsating water jet

Popis výsledku anglicky

The consequences of erosion caused by the mutual interaction of water droplets with sedimentary rock such as sandstone are not satisfactorily elucidated in the literature. This topic is important from many points of view, and its practical applications include the protection of cultural heritage or the targeted removal of material. This study assessed the wear rates on Božanov sandstone caused by multiple-droplet impingement, with water droplet impact speeds of v = 58 m/s, 92 m/s and 127 m/s corresponding to supply pressure of p = 2, 5 and 10 MPa, respectively. As a droplet generator, a pulsating water jet with a frequency of 20 kHz was used. Water droplets determined by a nozzle diameter d = 1 mm were distributed along a linear trajectory three times for each run. The water droplet impact density was varied by changing the traverse speed. In order to investigate the development of integrity damage, the samples were scanned using a digital microscope. Material loss was determined via weighing and compared using a non-contact measuring method. The results showed that the erosion responses, such as erosion depth and volume removed, increased with an increase in the supply pressure and a decrease in traverse speed. Moreover, it was found that at the lowest supply pressure p = 2 MPa, the effect of the number of drops density is invariant for traverse speeds in the range of 1–10 mm/s. When the pressure was increased from 5 to 10 MPa, the material removal values tripled. This significant increase may be attributed to the formation of an abrasive pulsating water stream within the created groove.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/LO1406" target="_blank" >LO1406: Institut čistých technologií těžby a užití energetických surovin - Projekt udržitelnosti</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Tribology International

ISSN

0301-679X

e-ISSN

1879-2464

Svazek periodika

203

Číslo periodika v rámci svazku

March 2025

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

110411

Kód UT WoS článku

001395356100001

EID výsledku v databázi Scopus

2-s2.0-85210094407