Narodna in univerzitetna knjižnica, Ljubljana (NUK)
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Physical and numerical modelling of a non-stationary steel flow through a subentry shroud with an inner metering nozzle = Fizikalno in numerično modeliranje nestacionarnega toka jekla skozi potopljen izlivek z notranjo šoboMichalek, Karel ...The paper presents new knowledge about physical and numerical modelling of a non-stationary steel flow into a mould through a subentry shroud with an 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. A special type of the subentry shroud is used during continuous casting of steel in Třinecké železárny, a.s. During continuous casting of steel, two unfavourable phenomena were observed. In the first case, it was not possible to increase the casting speed, though the diameter of the metering nozzle was extended. In the second case, a fluctuation of the casting speed among individual casting strands was detected. These two problems did not allow an improvement of the performance of the casting machine. Therefore, the physical and numerical modelling was performed. Attention was focused on the verification of the effect of the inner diameter of the nozzle body and internal diameter of the metering nozzleon the resulting volume flow rates. Four diameters of the metering nozzle - (16; 17; 17.5; 18) mm - were tested. The physical modelling was done on a 1 : 1 model constructed from Plexiglas. The numerical modelling was realized in the ANSYS FLUENT software. On the basis of the results of the modelling study and in cooperation with the VESUVIUS company, a new type of the profile of the subentry shroud with a metering nozzle was designed. The first experimental results in the steel plant led to an increase in the productivity of the continuous-casting machine.Vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 6, nov.-dec. 2013, str. 807-814)Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasleLeto - 2013Jezik - angleškiCOBISS.SI-ID - 1028522
Avtor
Michalek, Karel |
Tkadlečková, Markéta |
Gryc, Karel |
Cupek, Jiří |
Macura, Michal
Teme
kontinuirno ulivanje |
jeklo |
potopni izlivek |
izlivna šoba |
numerično modeliranje
vir: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 47, št. 6, nov.-dec. 2013, str. 807-814)
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Michalek, Karel | |
Tkadlečková, Markéta | |
Gryc, Karel | |
Cupek, Jiří | |
Macura, Michal |
Vir: Osebne bibliografije
in: SICRIS
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