A stochastic approach for extended partial blockage detection in viscoelastic pipelines: numerical and laboratory experiments

作者：Massari C^*; Yeh T C J; Ferrante M; Brunone B; Meniconi S

来源：JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA, 2015, 64(5): 583-595.

DOI：10.2166/aqua.2015.034

• partial blockages
• pipe system diagnosis
• stochastic estimator
• transients
• viscoelastic

Partial blockages in water pipe networks may contribute to large energy dissipation throughout the system and reduce service effectiveness for customers. In this paper, a recently developed stochastic model using transients for detecting partial blockages in water pipelines is tested and numerical and experimental case studies are presented. The model is a stochastic successive linear estimator previously used in groundwater hydrology for detecting the heterogeneity pattern of the subsurface. The model estimates the distribution of diameters within a pipe with partial blockages and quantifies the uncertainty associated with these estimates. Results show that a first good estimate of the extent and size of the blockages can be obtained by a single test generated by the fast closure of a valve.

• 出版日期2015
• 单位Perugia