Open AccessDETERMINATION OF HEAD LOSSES IN PIPE-LINES LOSSES DURING HYDRAULIC CALCULATIONS FOR RINGED WATER NET
Author(s) -
Eugeny Galperin,
Aleksander Luks,
Eugeny Krestin
Publication year - 2012
Publication title -
gradostroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
eISSN - 2782-2109
pISSN - 2542-0151
DOI - 10.17673/vestnik.2012.02.10
Subject(s) - head (geology) , hydraulic head , pipeline transport , net (polyhedron) , water pipe , surface finish , hydraulic roughness , water supply , environmental science , geotechnical engineering , structural engineering , marine engineering , petroleum engineering , engineering , geology , mechanical engineering , environmental engineering , mathematics , geometry , geomorphology , inlet
This paper provides the results of theoretical and experimental researches of head losses in industrial pipelines, which have technical coarseness. In the Nikuradzes researches values for frictional resistance coecient were determined for artificial even-grained sandy roughness. The pipe-lines, which are used for water-supply in practice, have natural technical coarseness. The coarseness has dierent structure: it can have corrugated or saw-tooth surfaces and there can be also protective coat.The comparative analysis is provided for dierent methods of hydraulic losses calculations for head losses in pipe-lines for ringed water net. Recommendations for usage are also presented.