Open AccessTo calculate the axial dimensions of inkjet devices for hydraulic transport of sand and gravel materials
Author(s) -
N V Medved,
E L Egorova,
В. Н. Морозов,
V A Gron,
A V Galaiko
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2094/2/022032
Subject(s) - suction , injector , hydraulic jump , inlet , mixing (physics) , jet (fluid) , materials science , geotechnical engineering , mechanics , geology , flow (mathematics) , mechanical engineering , engineering , physics , quantum mechanics , geomorphology
The article presents the results of the dredger in a deep deposit of sand and gravel materials. It was found that when the diameter of the suction pipe exceeds the diameter of the inlet mixing chamber by 150 mm, the actual pressure from the ejector does not exceed one meter, and with an increase in the supply of the suction pump as a result of a sharp jump in hydraulic resistance, the vacuum is disrupted. It was also found that the effect on the calculated compression ratio of the jet apparatus increases with an increase in the injection coefficient and the input velocity of the injected stream.