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  • Recent developments in unsteady pipe flow experimentation at the University of Montenegro [Elektronski vir]
    Brđanin, Radislav ...
    This paper presents recent experimental results of pressure measurements during filling and emptying of a relatively small-scale pipeline at the University of Montenegro. Experimental setup for ... investigation of water hammer and its special effects (unsteady friction, cavitation, column separation, trapped air, fluid-structure interaction - FSI), and pipeline filling and emptying is installed at the Faculty of Mechanical Engineering. It consists of an upstream end high-pressurized tank, horizontal steel pipeline (total length: 55.37 m, inner diameter: 18 mm, pipe wall thickness: 2 mm), four valve units positioned along the pipeline including the end points, and a downstream end outflow tank. The setup was upgraded in 2018 with the installation of new piezoresistive pressure transducers and pipe displacement sensors as well as additional electro-pneumatically operated ball valve at the upstream end of the pipeline. The filling of an initially empty pipeline is performed by a sudden opening of the valve positioned at the high-pressurized tank filled with water. The pipeline emptying process is accomplished by high-pressurized air supplied from the air reservoir installed in the air supply line. The high-pressurized tank is closed, and the downstream end valve is opened. Experimental runs have been performed with different initial values of pressure in the upstream end high-pressurized tank (filling) and air supply line (emptying). Results of new pressure measurements are analyzed and commented, with a reference to the previous experiments presented at 6th IAHR WG Meeting in Ljubljana, 2015.
    Vir: IAHR International Workshop on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems [Elektronski vir] : 9-11 October 2019, Stuttgart, Germany (Vol. 405, [zv.] 1, 2019, f. 1-6)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 17004315

    Povezava(-e):

    https://iopscience.iop.org/article/10.1088/1755-1315/405/1/012019
    DOI

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