Capítulo
Experimental setup for entrapped air pockets validation
Libro
8th International Conference on Pressure Surges
Autor(es)
Páginas en las que aparece este capítulo
133-146
ISBN
1-86058-250-8
Año de publicación
2000
Resumen
In this paper analytical and experimental results are presented for the study of entrapped air pockets in a pipeline of irregular profile. The analytical results are obtained from a general model, presented by the authors in previous works, based on a liquid and pipe rigid approach and assuming for the gas polytropic compression decompression behaviour. Laboratory results show, for a polytropic index n=1.4, a very good agreement with theoretical results until the filling column reaches the highest point of the pipe. From that point, and due to the failure of the basic hypothesis,a well-defined air-water cross section interface, the discrepancies are relevant.
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