Structure of submerged water jet and erosion of materials

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:100918

Murai, H ^[1]; Shimizu, S; Wu, Z L; Noguchi, H ^[2]

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1. Tsuru Promotion Society for Education and Research, Hiroshima (Japan)
2. Hiroshima Inst. of Tech. (Japan). Dept. of Mechanical Engineering

Experimental studies were carried out to clarify the structure of a submerged water jet and the damage process of metallic material due to the impingement of the jet. The erosive properties of the submerged jet were investigated and compared with those of water jet in air. Tap water was pressurized up to 147 MPa and injected into still water at the atmospheric pressure. Two types of nozzles were used in the experiments, the sharp edge nozzle and the round edge nozzle. The diameters of the nozzles were 0.50 mm. Specimens of aluminum alloy were used for erosion test. The structure of the submerged jet was investigated through instantaneous photographs. The mass loss of the submerged jet in a short stand-off distance region at a relatively long jetting duration tends to take larger value than that of the water jet in air. The correlation between the structure and the erosion characteristics of the jet was investigated.

• OSTI ID: 100918
• Report Number(s): CONF-940659--; ISBN 0-7918-1373-8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
ALUMINIUM ALLOYS
CAVITATION
EROSION
EXPERIMENTAL DATA
JETS
MASS TRANSFER
MORPHOLOGY
USES