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Statements

Subject Item
n2:RIV%2F49777513%3A23640%2F11%3A43896692%21RIV12-MSM-23640___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
The article deals with comparison of drag and lift coefficients for simple two-dimensional objects,which are often discussed in fluid mechanics fundamentals books. The commercial CFD software FLUENT 13 was used for computation of flow fields around the objects and determination of the drag and lift coefficients.The flow fields of the two-dimensional objects were computed for velocity up to 160 km per hour and Reynolds number Re=420000. Main purpose was to verify the suggested computational domain and model settings for further more complex objects geometries. The more complex profiles are used to stabilize asymmetrical ('z'-shaped) pantographs of high-speed trains. The trains are used in two-way traffic where the pantographs have to operate with the same characteristics in both directions. Results of the CFD computations show oscillation of the drag and lift coefficients over time. The results are compared with theoretical and experimental data and discussed. Some examples are presented in the paper. The article deals with comparison of drag and lift coefficients for simple two-dimensional objects,which are often discussed in fluid mechanics fundamentals books. The commercial CFD software FLUENT 13 was used for computation of flow fields around the objects and determination of the drag and lift coefficients.The flow fields of the two-dimensional objects were computed for velocity up to 160 km per hour and Reynolds number Re=420000. Main purpose was to verify the suggested computational domain and model settings for further more complex objects geometries. The more complex profiles are used to stabilize asymmetrical ('z'-shaped) pantographs of high-speed trains. The trains are used in two-way traffic where the pantographs have to operate with the same characteristics in both directions. Results of the CFD computations show oscillation of the drag and lift coefficients over time. The results are compared with theoretical and experimental data and discussed. Some examples are presented in the paper.
dcterms:title
Computation of drag and lift coefficients for simple two-dimensional objects with Reynolds number RE=420000 Computation of drag and lift coefficients for simple two-dimensional objects with Reynolds number RE=420000
skos:prefLabel
Computation of drag and lift coefficients for simple two-dimensional objects with Reynolds number RE=420000 Computation of drag and lift coefficients for simple two-dimensional objects with Reynolds number RE=420000
skos:notation
RIV/49777513:23640/11:43896692!RIV12-MSM-23640___
n14:predkladatel
n15:orjk%3A23640
n3:aktivita
n19:P
n3:aktivity
P(1M06031)
n3:dodaniDat
n4:2012
n3:domaciTvurceVysledku
n9:9534652 n9:9163387
n3:druhVysledku
n16:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
191482
n3:idVysledku
RIV/49777513:23640/11:43896692
n3:jazykVysledku
n10:eng
n3:klicovaSlova
drag and lift coeffiecient, ANSYS/FLUENT, two-dimesional objects, Reynolds number, pantographs
n3:klicoveSlovo
n18:drag%20and%20lift%20coeffiecient n18:ANSYS%2FFLUENT n18:Reynolds%20number n18:two-dimesional%20objects n18:pantographs
n3:kontrolniKodProRIV
[1D0A3DF8EF2F]
n3:mistoKonaniAkce
Jičín
n3:mistoVydani
Liberec
n3:nazevZdroje
Conference Proceedings Volume 2
n3:obor
n17:BK
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n13:1M06031
n3:rokUplatneniVysledku
n4:2011
n3:tvurceVysledku
Lávička, David Matas, Richard
n3:typAkce
n6:WRD
n3:zahajeniAkce
2011-11-22+01:00
s:numberOfPages
6
n22:hasPublisher
Technická univerzita
n12:isbn
978-80-7372-784-0
n20:organizacniJednotka
23640