"CZ - \u010Cesk\u00E1 republika" . "27360" . . "RIV/61989100:27360/14:86089692!RIV15-MSM-27360___" . "Michalek, Karel" . . "Tkadle\u010Dkov\u00E1, Mark\u00E9ta" . "LXVII" . . "The paper presents new knowledge and experience from physical and numerical modelling of non-stationary steel flow into mould through the subentry shroud with inner pressed metering nozzle. The physical and numerical modelling was realized under the conditions of the Department of Metallurgy and Foundry at VSB-Technical University of Ostrava. The special type of the subentry shroud is used during continuous casting of steel in T\u0159ineck\u00E9 \u017Eelez\u00E1rny a.s. During the continuous casting of steel, there were observed two unfavourable phenomenons. In the first case, there was not possible to increase the casting speed although the diameter of the metering nozzle was extended. In the second case, the fluctuation of the casting speed among the individual casting strand was detected. These two problems did not allow the improve performance of casting machine. Therefore, the physical and numerical modelling was performed. The attention was focused on the verification of the effect of inner diameter of the body nozzle and internal diameter of metering nozzle on the resulting volumetric flow rates at a constant hydrostatic height above the nozzle. There were tested four diameter of the metering nozzle: 16; 17; 17.5; 18 mm. The physical modelling was done on the physical model constructed from Plexiglas in 1:1. The numerical modelling was realized in CFD ANSYS FLUENT program. On the base of results from modelling study and in cooperation with VESUVIUS, the new type of the profile of the subentry nozzle with metering nozzle was designed. The first experimental results in steel plant led to increasing of productivity of continuous casting machine."@en . . "Hutnick\u00E9 listy" . "P(LO1203)" . "Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1torem" . . . . "Macura, Michal" . "Gryc, Karel" . . "8"^^ . "continuously cast machine, subentry shroud, metering nozzle, physical and numercal modelling; steel"@en . . "2" . . "5"^^ . . "P\u0159\u00EDsp\u011Bvek prezentuje nov\u00E9 poznatky z fyzik\u00E1ln\u00EDho a numerick\u00E9ho modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1tory. Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED bylo realizov\u00E1no v laboratorn\u00EDch podm\u00EDnk\u00E1ch katedry metalurgie a sl\u00E9v\u00E1renstv\u00ED V\u0160B \u2013 Technick\u00E9 univerzity Ostrava. Speci\u00E1ln\u00ED typ ponorn\u00E9 v\u00FDlevky je pou\u017E\u00EDv\u00E1n b\u011Bhem plynul\u00E9ho odl\u00E9v\u00E1n\u00ED oceli v T\u0159ineck\u00FDch \u017Eelez\u00E1rn\u00E1ch a.s. B\u011Bhem plynul\u00E9ho odl\u00E9v\u00E1n\u00ED byly pozorov\u00E1ny dva nep\u0159\u00EDzniv\u00E9 jevy. V prvn\u00EDm p\u0159\u00EDpad\u011B nebylo mo\u017En\u00E9 zv\u00FD\u0161it lic\u00ED rychlost, a\u010Dkoli byl zv\u011Bt\u0161en pr\u016Fm\u011Br doz\u00E1toru. V druh\u00E9m p\u0159\u00EDpad\u011B pak doch\u00E1zelo k fluktuac\u00EDm lic\u00ED rychlosti mezi jednotliv\u00FDmi lic\u00EDmi proudy. Tyto zm\u00EDn\u011Bn\u00E9 skute\u010Dnosti neumo\u017E\u0148ovaly zv\u00FD\u0161it v\u00FDkon lic\u00EDho stroje. Z tohoto d\u016Fvodu bylo realizov\u00E1no numerick\u00E9 a fyzik\u00E1ln\u00ED modelov\u00E1n\u00ED. Pozornost byla zam\u011B\u0159ena p\u0159edev\u0161\u00EDm na verifikaci vlivu vnit\u0159n\u00EDho pr\u016Fm\u011Bru doz\u00E1toru ponorn\u00E9 v\u00FDlevky na v\u00FDsledn\u00FD objemov\u00FD pr\u016Ftok oceli za konstantn\u00ED hydrostatick\u00E9 v\u00FD\u0161ky oceli v mezip\u00E1nvi. Byly testov\u00E1ny \u010Dty\u0159i pr\u016Fm\u011Bru doz\u00E1tor\u016F, a to 16, 17, 17,5 a 18 mm. Fyzik\u00E1ln\u00ED modelov\u00E1n\u00ED bylo provedeno na modelu v\u00FDlevky sestaven\u00E9 z plexiskla v m\u011B\u0159\u00EDtku 1:1. Numerick\u00E9 modelov\u00E1n\u00ED bylo realizov\u00E1no v CFD programu ANSYS FLUENT. Na z\u00E1klad\u011B v\u00FDsledk\u016F modelov\u00E9ho studia a ve spolupr\u00E1ci s firmou VESUVISUS byl navr\u017Een nov\u00FD vnit\u0159n\u00ED profil ponorn\u00E9 v\u00FDlevky s doz\u00E1torem. Prvn\u00ED experiment\u00E1ln\u00ED v\u00FDsledky v ocel\u00E1rn\u011B vedly k zv\u00FD\u0161en\u00ED v\u00FDrobnosti lic\u00EDho stroje za sou\u010Dasn\u00E9ho dodr\u017Een\u00ED kvality vyr\u00E1b\u011Bn\u00E9 oceli." . "RIV/61989100:27360/14:86089692" . "Physical and Numerical Modelling of Non-Stationary Steel Flow through the Subentry Shroud With Inner Metaring Nozzle"@en . . "Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1torem"@cs . . "Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1torem" . "P\u0159\u00EDsp\u011Bvek prezentuje nov\u00E9 poznatky z fyzik\u00E1ln\u00EDho a numerick\u00E9ho modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1tory. Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED bylo realizov\u00E1no v laboratorn\u00EDch podm\u00EDnk\u00E1ch katedry metalurgie a sl\u00E9v\u00E1renstv\u00ED V\u0160B \u2013 Technick\u00E9 univerzity Ostrava. Speci\u00E1ln\u00ED typ ponorn\u00E9 v\u00FDlevky je pou\u017E\u00EDv\u00E1n b\u011Bhem plynul\u00E9ho odl\u00E9v\u00E1n\u00ED oceli v T\u0159ineck\u00FDch \u017Eelez\u00E1rn\u00E1ch a.s. B\u011Bhem plynul\u00E9ho odl\u00E9v\u00E1n\u00ED byly pozorov\u00E1ny dva nep\u0159\u00EDzniv\u00E9 jevy. V prvn\u00EDm p\u0159\u00EDpad\u011B nebylo mo\u017En\u00E9 zv\u00FD\u0161it lic\u00ED rychlost, a\u010Dkoli byl zv\u011Bt\u0161en pr\u016Fm\u011Br doz\u00E1toru. V druh\u00E9m p\u0159\u00EDpad\u011B pak doch\u00E1zelo k fluktuac\u00EDm lic\u00ED rychlosti mezi jednotliv\u00FDmi lic\u00EDmi proudy. Tyto zm\u00EDn\u011Bn\u00E9 skute\u010Dnosti neumo\u017E\u0148ovaly zv\u00FD\u0161it v\u00FDkon lic\u00EDho stroje. Z tohoto d\u016Fvodu bylo realizov\u00E1no numerick\u00E9 a fyzik\u00E1ln\u00ED modelov\u00E1n\u00ED. Pozornost byla zam\u011B\u0159ena p\u0159edev\u0161\u00EDm na verifikaci vlivu vnit\u0159n\u00EDho pr\u016Fm\u011Bru doz\u00E1toru ponorn\u00E9 v\u00FDlevky na v\u00FDsledn\u00FD objemov\u00FD pr\u016Ftok oceli za konstantn\u00ED hydrostatick\u00E9 v\u00FD\u0161ky oceli v mezip\u00E1nvi. Byly testov\u00E1ny \u010Dty\u0159i pr\u016Fm\u011Bru doz\u00E1tor\u016F, a to 16, 17, 17,5 a 18 mm. Fyzik\u00E1ln\u00ED modelov\u00E1n\u00ED bylo provedeno na modelu v\u00FDlevky sestaven\u00E9 z plexiskla v m\u011B\u0159\u00EDtku 1:1. Numerick\u00E9 modelov\u00E1n\u00ED bylo realizov\u00E1no v CFD programu ANSYS FLUENT. Na z\u00E1klad\u011B v\u00FDsledk\u016F modelov\u00E9ho studia a ve spolupr\u00E1ci s firmou VESUVISUS byl navr\u017Een nov\u00FD vnit\u0159n\u00ED profil ponorn\u00E9 v\u00FDlevky s doz\u00E1torem. Prvn\u00ED experiment\u00E1ln\u00ED v\u00FDsledky v ocel\u00E1rn\u011B vedly k zv\u00FD\u0161en\u00ED v\u00FDrobnosti lic\u00EDho stroje za sou\u010Dasn\u00E9ho dodr\u017Een\u00ED kvality vyr\u00E1b\u011Bn\u00E9 oceli."@cs . "3"^^ . . . "[AD577540C337]" . . "Cupek, Ji\u0159\u00ED" . "Fyzik\u00E1ln\u00ED a numerick\u00E9 modelov\u00E1n\u00ED nestacion\u00E1rn\u00EDho proud\u011Bn\u00ED oceli p\u0159es ponornou v\u00FDlevku s doz\u00E1torem"@cs . . "0018-8069" . "17856" . . "Physical and Numerical Modelling of Non-Stationary Steel Flow through the Subentry Shroud With Inner Metaring Nozzle"@en . .