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2010•Journal of Hydroelectric EngineeringRequires access

Experimental study on flow cavitation of a spillway

AN Mengxiong

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Abstract

Hydraulic model test of a real spillway is conducted in a vacuum tank with a measurement of incipient cavitation number σi at several locations.The test shows that,at different locations,the cavitation numbers σ are different and the incipient cavitation numbers σi of an isolated surface irregularity are also different.Neither the single parameter σ nor σi can represent the cavitation status of the spillway,while the ratio σ /σi is a suitable parameter.

About this research paper

What this paper is about

Hydraulic model test of a real spillway is conducted in a vacuum tank with a measurement of incipient cavitation number σi at several locations.The test shows that,at different locations,the cavitation numbers σ are different and the incipient cavitation numbers σi of an isolated surface irregularity are also different.Neither the single parameter σ nor σi can represent the cavitation status of the spillway,while the ratio σ /σi is a suitable parameter.

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Available abstract

Hydraulic model test of a real spillway is conducted in a vacuum tank with a measurement of incipient cavitation number σi at several locations.The test shows that,at different locations,the cavitation numbers σ are different and the incipient cavitation numbers σi of an isolated surface irregularity are also different.Neither the single parameter σ nor σi can represent the cavitation status of the spillway,while the ratio σ /σi is a suitable parameter.

Key concepts: Cavitation, Spillway, Geotechnical engineering, Flow (mathematics), Hydraulics, Engineering, Mechanics, Marine engineering

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