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| Description
| - Numericky byla simulována rychlá dynamika perforátoru ropných vrtů, použitím kódu 3D LS-DYNA, Version 970, včetně detonace výbušiny, kolapsu vložky a tvorby paprsku. Byly použity dva odlišné přístupy: Lagrangeova a Eulerova simulace. Lagrangeova simulace potvrdila, že problémy deformací prvků jsou velmi významné a neregulární výpočtová síť pro vložku v čase může vest k tomu, že tvorba paprsku nemusí být korektní. Navíc bylo zjištěno, že vložka perforátoru musí být přes svoji tloušťku rozdělena alespoň do deseti prvků, aby bylo možno získat téměř reálné parametry paprsku. Druhá Eulerova analýza ukázala, že tento přístup je mnohem stabilnější a může poskytnout užitečné informace o vlastnostech paprsku: např. Jeho geometrii, rychlost a hustotu. Získané výsledky budou v budoucnosti použity pro analýzy týkající se efektů penetrace paprsku do okolních materiálů, obvykle ocelová trubka a hornina nebo beton. (cs)
- Fast dynamics of an oil-well perforator was numerically simulated by using 3D LS-DYNA, Version 970, code covering explosive detonation, liner collapse and jet formation. Two different numerical approaches were used: Lagrangian and Eulerian numerical simulations. The Lagrangian simulations confirmed that the element distortion problems are very significant and the liner jet non-regular mesh in time could cause that the jet formation would not be correct. Moreover, it was observed that the perforator liner should had to be divided at least into approximately ten elements across the liner thickness in order to obtain quasi real jet parameters. The second Eulerian analysis demonstrated that this approach is more stable and could give useful information about the jet properties: for example its geometry, velocity, and density. The results obtained will be used in the consecutive future analysis regarding the jet penetration effects on surrounding materials, usually steel tube and rocks or concrete.
- Fast dynamics of an oil-well perforator was numerically simulated by using 3D LS-DYNA, Version 970, code covering explosive detonation, liner collapse and jet formation. Two different numerical approaches were used: Lagrangian and Eulerian numerical simulations. The Lagrangian simulations confirmed that the element distortion problems are very significant and the liner jet non-regular mesh in time could cause that the jet formation would not be correct. Moreover, it was observed that the perforator liner should had to be divided at least into approximately ten elements across the liner thickness in order to obtain quasi real jet parameters. The second Eulerian analysis demonstrated that this approach is more stable and could give useful information about the jet properties: for example its geometry, velocity, and density. The results obtained will be used in the consecutive future analysis regarding the jet penetration effects on surrounding materials, usually steel tube and rocks or concrete. (en)
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| Title
| - Oil-well Perforator, Lagrangian and Eulerian LS-DYNA Simulations
- Oil-well Perforator, Lagrangian and Eulerian LS-DYNA Simulations (en)
- Perforátor ropných vrtů, Lagrangeova a Eulerova simulace kódem LS-DYNA (cs)
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| skos:prefLabel
| - Oil-well Perforator, Lagrangian and Eulerian LS-DYNA Simulations
- Oil-well Perforator, Lagrangian and Eulerian LS-DYNA Simulations (en)
- Perforátor ropných vrtů, Lagrangeova a Eulerova simulace kódem LS-DYNA (cs)
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| skos:notation
| - RIV/00216275:25310/06:00004655!RIV07-MSM-25310___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00216275:25310/06:00004655
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Oil-well perforator; numerical simulation; finite elements; liner; LS-DYNA (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Electronic edition of Proceedings
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Adamík, Vladislav
- Wilk, Zenon
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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