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Št. zadetkov: 3
Navier-Stokes solutions for accelerating pipe flow
Kamil Urbanowicz, Anton Bergant, Michal Stosiak, Adam Deptuła, Mykola Karpenko
Pregledni znanstveni članek
Oznake: Navier-Stoksove enačbe;analitične rešitve;pospešujoč tok;cevni tok;kanalski tok;Navier–Stokes equations;analytical solutions;accelerated flow;pipe flow;
This paper reviews analytical solutions for the accelerated flow of an incompressible Newtonian fluid in a pipeline. This problem can be solved in one of two ways according to the (1) imposed pressure gradient or (2) flow rate. Laminar accelerated flow solutions presented in a number of publications ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Initial investigation of wave interactions during simultaneous valve closures in hydraulic piping systems
Kamil Urbanowicz, Igor Haluch, Anton Bergant, Adam Deptuła, Pawel Sliwinski
Izvirni znanstveni članek
Oznake: vodni udar;problem sistema s tremi rezervoarji;metoda karakteristik;interakcija valov;hidravlični sistemi;water hammer;three-reservoir-pipe problem;method of characteristics;wave interaction;hydraulic systems;
The effects of interference of pressure waves in simple piping systems were studied. A freeware computer code Allievi developed at the University of Valencia was used to simulate dynamic waveforms in simple and complex networks. The tests were carried out according to three scenarios. No pressure in ...
Leto: 2023 Vir: Fakulteta za strojništvo (UL FS)
Water hammer simulation using simplified convolution-based unsteady friction model
Kamil Urbanowicz, Anton Bergant, Michal Stosiak, Adam Deptuła, Mykola Karpenko, Michał Kubrak, Apoloniusz Kodura
Izvirni znanstveni članek
Oznake: vodni udar;neustaljeno stensko trenje;hidravlični prehodni pojavi;konvolucijski model;računske simulacije;water hammer;hydraulic transients;unsteady friction;convolution-based model;numerical simulation;
Omission of frequency-dependent hydraulic resistance (skin friction) during modelling of the water hammer phenomenon is unacceptable. This resistance plays a major role when the transient liquid flow occurs in rigid-walled pipes (steel, copper, etc.). In the literature, there are at least two differ ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Št. zadetkov: 3
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