Theoretical and practical research on micro hydrodynamic nozzles for modulated water jet generation as an innovation to replace continuous water jet in soft materials erosion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F23%3A00575696" target="_blank" >RIV/68145535:_____/23:00575696 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0263224123010941" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263224123010941</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.measurement.2023.113530" target="_blank" >10.1016/j.measurement.2023.113530</a>

Result language
angličtina
Original language name
Theoretical and practical research on micro hydrodynamic nozzles for modulated water jet generation as an innovation to replace continuous water jet in soft materials erosion
Original language description
This study investigated the functionality of a newly developed micro hydrodynamic nozzle and its ability to generate a modulated water jet (MWJ) used for the erosion of soft materials. The procedure of nozzle design, numerical flow modelling, quality testing and functionality of the nozzle are presented. Well defined modulated jets were observed up to 1.5 MPa of input water pressure with an oscillation frequency of 88 kHz. Erosion characteristics of the modulated jets were investigated on soft gelatine samples. Three basic jet orientations were tested with respect to the eroded samples and to the trajectory of the nozzle movement. The erosion process of the MWJ was monitored using high-speed shadowgraph techniques. Then, the erosion depth was determined by image analysis methods. The test results show that the best erosion effect was obtained using the nozzle with 45° orientation with respect to the traverse direction.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering

Project
<a href="/en/project/GA23-05235S" target="_blank" >GA23-05235S: Study of mechanism of formation stable high-frequency oscillations generated in a liquid under high pressures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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