Experimental setup for entrapped air pockets model validation
Publish year
8th International Conference on Pressure Surges : Safe Design and Operation of Industrial Pipe Systems
Place of celebration
La Haya, Holanda
In this papaer 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 piped rigid approach and assuming for the gas a 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 wee-defined air-water cross section interface, the discrepancies are relevant.