Investigation of Transient Vaporous Cavitation: ...

URL: http://www.sciencedirect.com/science/article/pii/S1877705815025515/pdf?md5=6594d27740fbe8d1e2fc3de84e9934bb&pid=1-s2.0-S1877705815025515-main.pdf

The current paper aims at the experimental and numerical analysis of the cavitating pipe flow during the occurrence of hydraulic transients in a quasi-horizontal straight copper pipe rig. Transient events were simulated by the quasi-instantaneous closure of a pneumatically actuated ball valve located at the downstream end of the pipe. A hydraulic transient model has been developed for describing cavitating pipe flow by means of two approaches – the discrete vapour cavity model (DVCM) and the discrete gas cavity model (DGCM). Firstly, the model has been calibrated by using transient data without cavitation. Numerical results have been compared with collected data and a good agreement has been observed as long as the unsteady friction losses are considered. Secondly, DVCM and DGCM have been used to describe cavitating flows. Results of both models have been compared, and the DGCM model has shown to better describe transient events with cavitation.

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Additional Information

Field Value
Last updated June 16, 2016
Created June 16, 2016
Format PDF
License Creative Commons Attribution
created over 4 years ago
format PDF
id 70617d69-ff33-4cb0-bd27-9c55744227cc
openAccess false
package id b0b32b0f-aa1a-43fe-9de8-0d6fcc872fb8
position 51
revision id f0a5a351-7af0-466a-aa97-47988e9757d6
state active
tags Cavitating flow,Fluid transients,Pipe-rig,Experimental data,Column separation.,Cavitating flow,Fluid transients,Pipe-rig,Experimental data,Column separation
topic Water supply and distribution
type Conference Paper
year 2,015