Original scientific paper

https://doi.org/10.17559/TV-20140214152925

The measurement of the velocity of abrasive particles at the suction part of cutting head

Josef Foldyna orcid.org/0000-0003-4288-445X ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentska 1768/9 708 00 Ostrava-Poruba, Czech Republic
Michal Zelenak ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentska 1768/9 708 00 Ostrava-Poruba, Czech Republic
Jiri Klich ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentska 1768/9 708 00 Ostrava-Poruba, Czech Republic
Petr Hlavacek ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentska 1768/9 708 00 Ostrava-Poruba, Czech Republic
Libor Sitek ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Studentska 1768/9 708 00 Ostrava-Poruba, Czech Republic
Zdenek Riha ; Institute of Geonics of the ASCR, Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Drobneho 28 602 00 Brno, Czech Republic

Abstract

To be able to optimize the design of the abrasive cutting head using the numerical simulation, it is necessary to gather as much information about processes occurring in the cutting head as possible. The development of numerical model of processes occurring in the abrasive water jet cutting head during the process of creation and forming of an abrasive water jet is currently in progress at the Institute of Geonics in Ostrava. The verification of the model requires, among other things, to determinate the behaviour of abrasive particles at the input of a cutting head. Therefore, the visualisation of abrasive particles at the input using various parameters of abrasive jet and its subsequent analysis were performed using the shadowgraphy (backlighting) technique. The results are presented in the paper.

Keywords

abrasive water jet; particle image shadowgraphy; velocity of abrasive particles

Hrčak ID:

149373

URI

https://hrcak.srce.hr/149373

Publication date:

14.12.2015.

Article data in other languages: croatian

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