IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 4- WATER ENGINEERING : A NEW SIMULATION MODEL FOR DAMAGE OF CAVITATION AND SILT EROSION
A NEW SIMULATION MODEL FOR DAMAGE OF CAVITATION AND SILT EROSION
Author : GOU WEN-JUAN , LIAN JI-JIAN , WU JIAN-HUA
Damage of cavitation and silt erosion usually occurs simultaneously in hydraulic structures and hydro-machinery of high dam in a silt-laden river. A new model is necessary to be proposed for prediction of the synergetic damage. This model derived from experiments of cavitation and silt erosion for ASMT 1045 carbon steel in silt-laden water with three sediment 3 3 3 concentrations (25 kg/m , 50 kg/m , and 85 kg/m ) and five mean sizes (0.531 mm, 0.253 mm, 0.063 mm, 0.042 mm and 0.026 mm) with 4 hours duration time by means of a special vibratory apparatus. The experiment results present that sediments aggravated cavitation damage while their sizes are larger than an indicated size; conversely, the damage is relieved. Hence, sediment size strongly dominates the various effects on damage and this model is built on the phenomenon. The model was thus set up by an integral with accessible superimposition between the relations of damage and three factors of time, size, concentration as the integrand and the particle size distribution as domain of integration.
File Size : 459,550 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 4- WATER ENGINEERING
Date Published : 19/04/2016
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