20.500.12556/RUL-126369 Effect of coating thickness on a solid-liquid two-phase flow centrifugal pump under water medium Vpliv debeline prevleke na tok tekočine in trdnih delcev v centrifugalni črpalki Spraying a coating on the surface of wet parts of a solid-liquid two-phase flow centrifugal pump could effectively increase its service life. To research the effect of coating thickness on the performance of the pump, a solid-liquid two-phase flow pump with a speed of ns = 81.5 was chosen, and polyurethane coatings with different thicknesses were sprayed on the surface of the blades of the impeller. The influence of coating thickness on the performance of the pump was tested under the condition of a water medium. Combined with numerical simulation, the internal flow, pressure fluctuations and radial force of the model pump were further analysed in detail. Keeping the blade outlet angle unchanged, the head and efficiency of the pump decrease with the increase of the coating thickness, and the amplitude of the decrease increases with the increase of the coating thickness. The peak value of pressure fluctuations increases with the increase of coating thickness. The pressure value on the impeller inlet increases first and then decreases with the increase of coating thickness. Radial force of impeller increases with the increase of coating thickness, and the radial force distributes in the triangle, which is the same as the number of blades. coating thickness solid-liquid two-phase flow pumps numerical simulation pressure fluctuation radial force debelina prevleke dvofazne črpalke numerična simulacija nihanje tlaka radialna sila true false true Angleški jezik Slovenski jezik Članek v reviji 2021-04-19 13:55:19 2021-04-19 13:55:24 2022-09-05 03:54:56 0000-00-00 00:00:00 2019 0 0 Str. 251-261 no. 4 Vol. 65 Apr. 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.67:519.6(045) 0039-2480 URN:NBN:SI:doc-8N0JIVPU 10.5545/sv-jme.2018.5865 16618779 762116 RAZ_Luo_Kaikai_2019.pdf RAZ_Luo_Kaikai_2019.pdf 1 A3ED5F801D323597010FF713299BB44E 39fb8634f54fc2af8d34d2bd6711b036c5f5a2dee41ef3ed95c8e25e195ba10b e54246a6-a1bb-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142296 https://www.sv-jme.eu/sl/article/effect-of-coating-thickness-on-a-solid-liquid-two-phase-flow-centrifugal-pump-under-water-medium/ 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142294 Fakulteta za strojništvo Strojniški vestnik 0 0 0