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Statements

Subject Item
n2:RIV%2F46747885%3A24210%2F13%3A%230005556%21RIV14-GA0-24210___
rdf:type
n13:Vysledek skos:Concept
rdfs:seeAlso
http://www.epj-conferences.org/articles/epjconf/pdf/2013/06/epjconf_efm2013_01004.pdf
dcterms:description
The scope of this article is focused on general analysis of errors and uncertainties possibly arising from CFD-to-schlieren pictures matching. Analysis is based on classic analytical equations. These are firstly evaluated with the presumption of constant density gradient along the ray course. In other words, the deflection of light-ray caused by density gradient is negligible in compare to the cross size of constant gradient area. It is the aim of this work to determine, whether this presumption is applicable in case of supersonic air-to-air ejector. The colour and black and white schlieren pictures are carried out and compared to CFD results. Simulations had covered various eddy viscosities. Computed pressure gradients are transformed into deflection angles and further to ray displacement. Resulting computed light-ray deflection is matched to experimental results. The scope of this article is focused on general analysis of errors and uncertainties possibly arising from CFD-to-schlieren pictures matching. Analysis is based on classic analytical equations. These are firstly evaluated with the presumption of constant density gradient along the ray course. In other words, the deflection of light-ray caused by density gradient is negligible in compare to the cross size of constant gradient area. It is the aim of this work to determine, whether this presumption is applicable in case of supersonic air-to-air ejector. The colour and black and white schlieren pictures are carried out and compared to CFD results. Simulations had covered various eddy viscosities. Computed pressure gradients are transformed into deflection angles and further to ray displacement. Resulting computed light-ray deflection is matched to experimental results.
dcterms:title
Error analysis of supersonic air-to-air ejector schlieren pictures Error analysis of supersonic air-to-air ejector schlieren pictures
skos:prefLabel
Error analysis of supersonic air-to-air ejector schlieren pictures Error analysis of supersonic air-to-air ejector schlieren pictures
skos:notation
RIV/46747885:24210/13:#0005556!RIV14-GA0-24210___
n13:predkladatel
n14:orjk%3A24210
n3:aktivita
n5:S n5:P
n3:aktivity
P(GAP101/10/1709), S
n3:dodaniDat
n4:2014
n3:domaciTvurceVysledku
n20:4633091
n3:druhVysledku
n17:D
n3:duvernostUdaju
n23:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
73193
n3:idVysledku
RIV/46747885:24210/13:#0005556
n3:jazykVysledku
n9:eng
n3:klicovaSlova
error; supersonic ejector; schlieren pictures
n3:klicoveSlovo
n10:error n10:schlieren%20pictures n10:supersonic%20ejector
n3:kontrolniKodProRIV
[7802268EE6D3]
n3:mistoKonaniAkce
Czech Republic
n3:mistoVydani
FRANCIE
n3:nazevZdroje
EPJ Web of Conferences
n3:obor
n7:JE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n8:GAP101%2F10%2F1709
n3:rokUplatneniVysledku
n4:2013
n3:tvurceVysledku
Kolář, Jan
n3:typAkce
n22:WRD
n3:wos
000319932200004
n3:zahajeniAkce
2012-01-01+01:00
s:issn
2100-014X
s:numberOfPages
6
n24:doi
10.1051/epjconf/20134501004
n21:hasPublisher
E D P SCIENCES
n11:isbn
978-80-7372-912-7
n16:organizacniJednotka
24210