cavitation damage
3.Study of Sand-mud Abrasion, Cavitation Damage and Their Protections for the Turbines of the Sanmenxia Hydropower Station
4.The air bubbles in aerated flow with diameter below then 0.2mm or 0.5mm plays important role in reducing cavitation damage. May be very little air concentration can protect construction free from cavitation erosion.
5.The results showed that attaked surface had similar appearance like impact fractograph primary failure mechanism of cavitation damage was mixed mode of quasi cleavage and dimple fracture.
6.W. Holl and D. Colgate, this paper tries to estimate the required control of surface irregularities for high overflow dams so as to avoid the incipiency of cavitation damage.
7.Abstract: The liner of turbine draft tube in Ankang Water Power Station was punched by cavitation,which leads to welding crack,metal shed and concrete delve,water spurting out.The cause of the damage is analyzed,the treatment is expounded.
8.The liner of turbine draft tube in Ankang Water Power Station was punched by cavitation,which leads to welding crack,metal shed and concrete delve,water spurting out.The cause of the damage is analyzed,the treatment is expounded.
9.The definitions and the conditions of cavitation erosion and flash vaporization have been discussed in detail; the paper also shows examples of different definitions in different books, which cause the complexity of calculating discharge factor and the damage to control valve; suggests relevant measures to avoid the damage in real working condition.
10.Until now,there have been a few reports on the damage of the water pumps caused by sand and water cavitation.By use of the test loop for solid and liquid two phases,under the condition of 3%head drop,the damage location and relative degree of the sand and water cavitaiton occurred on the impeller were tested and researched.The result was,them,compared with the results under the condition that water cavitation occurred and no cavitation but only wear occurred.The differencts were analyzed.The analysis result can be used as the basis of the further research and the improvement of the impeller shape.
