20.500.12556/RUL-146405 Progress in analytical modeling of water hammer Analytical formulas for laminar water hammer in horizontal pipes were extended and simplified into a compact mathematical form based on dimensionless parameters: dimensionless time, water hammer number, etc. Detailed treatment of turbulent water hammer analytical solutions is beyond the scope of this paper. In the Muto and Takahashi solution, novel Laplace and time domain formulas for flow velocity and wall shear stress were developed. A series of comparative studies of unified analytical solutions with numerical solutions and the results of measurements were carried out. The study shows that models that account for the frequency-dependent nature of hydraulic resistance agree very well with experimental results over a wide range of water hammer numbers Wh, particularly when Wh ≤ 0.1. reservoir-horizontal pipeline-valve system water hammer transient laminar flow analytical solution frictionless system quasi-steady friction unsteady skin friction sistem rezervoar-horizontalni cevovod-ventil vodni udar prehodni laminarni tok analitična rešitev idealni sistem ustaljeno stensko trenje nestalno stensko trenje true false true Angleški jezik Slovenski jezik Članek v reviji 2023-05-31 10:25:13 2023-05-31 10:25:19 2023-06-15 11:19:23 0000-00-00 00:00:00 2023 0 0 12 str. iss. 8, art. 081203, FE-23-1030 Vol. 145 Aug. 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.22 0098-2202 10.1115/1.4062290 153453571 Urbanowicz_...-_Progress_in_Analytical_Modeling_of_Water_Hammer.pdf Urbanowicz_...-_Progress_in_Analytical_Modeling_of_Water_Hammer.pdf 1 F3C1355E0F58CB8E1775D2537C3FE8A3 ce0e8f0f0254c6cb8d3d15b8fa03bbcde378843c4c7a97371d92908139678e34 49f2b30b-ff8d-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=169591 https://asmedigitalcollection.asme.org/fluidsengineering/article-abstract/145/8/081203/1160565/Progress-in-Analytical-Modeling-of-Water-Hammer?redirectedFrom=fulltext 1 60f3408f-ff8c-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=169590 Fakulteta za strojništvo 0 0 0