Model przepływów w systemie dystrybucji wody na terenie Polanicy Zdroju

Presented are some engineering problems dealt with in calibrating the parameters of the water supply network model for Polanica Zdrój.Calibrating was carried out on the basis of data sets obtained by measurements and in an analytical approach.Measurements were performed continuously for 7 days and included the following parameters : pressure at 23 models, water levels in the tanks. For the needs of calibration,actual in-service conditions ( observed in the course of field investigations ) were taken into account. The input data sets forthe calibrating process encompassed the following items : topological descriptions of the water distribution system ; schematic representations of the joint notes ; pipe length,pipe diameter,pipe age and pipe material ; information about actual conditions observed in service ; first approximation of identified parameter values and measured results.