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Statements

Subject Item
n2:RIV%2F46747885%3A24220%2F11%3A%230001920%21RIV12-MSM-24220___
rdf:type
n9:Vysledek skos:Concept
dcterms:description
The presented paper shows the possibility of using holographic interferometry for measurement of temperature field in moving fluids. There are a few methods for identification of velocity fields in fluids, such us LDA, PIV, hot wire anemometry. It is very difficult to measure the temperature field in moving fluids. One of the often used methods is Constant Current Anemometry (CCA), which is a point temperature measurement method. Data are possibly acquired at frequencies up to 1000Hz. This frequency should be limiting factor for using of CCA in fluid when fast change of temperature occurs. This shortcoming of CCA measurements should be overcome by using of optical methods such as holographic interferometry. It is necessary to employ a special holographic setup with double sensitivity instead of the commonly used Mach-Zehnder type of holographic interferometer in order to attain the parameters sufficient for the studied case. This setup is not light efficient like the Mach-Zehnder type but has double sensitivity. The special technique of acquiring and phase averaging of results from holographic interferometry is also presented. The results from the holographic interferometry experiments will be compared with the temperature field achieved by methods CCA method. The presented paper shows the possibility of using holographic interferometry for measurement of temperature field in moving fluids. There are a few methods for identification of velocity fields in fluids, such us LDA, PIV, hot wire anemometry. It is very difficult to measure the temperature field in moving fluids. One of the often used methods is Constant Current Anemometry (CCA), which is a point temperature measurement method. Data are possibly acquired at frequencies up to 1000Hz. This frequency should be limiting factor for using of CCA in fluid when fast change of temperature occurs. This shortcoming of CCA measurements should be overcome by using of optical methods such as holographic interferometry. It is necessary to employ a special holographic setup with double sensitivity instead of the commonly used Mach-Zehnder type of holographic interferometer in order to attain the parameters sufficient for the studied case. This setup is not light efficient like the Mach-Zehnder type but has double sensitivity. The special technique of acquiring and phase averaging of results from holographic interferometry is also presented. The results from the holographic interferometry experiments will be compared with the temperature field achieved by methods CCA method.
dcterms:title
Holografic interferometry used for measurement of temperature field in fluid Holografic interferometry used for measurement of temperature field in fluid
skos:prefLabel
Holografic interferometry used for measurement of temperature field in fluid Holografic interferometry used for measurement of temperature field in fluid
skos:notation
RIV/46747885:24220/11:#0001920!RIV12-MSM-24220___
n9:predkladatel
n10:orjk%3A24220
n3:aktivita
n14:Z n14:S n14:P
n3:aktivity
P(GCP101/11/J019), P(IAA200760801), S, Z(MSM4674788501)
n3:cisloPeriodika
59
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n4:2061376 n4:2955962 n4:5155320 n4:3470091
n3:druhVysledku
n19:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
202636
n3:idVysledku
RIV/46747885:24220/11:#0001920
n3:jazykVysledku
n5:eng
n3:klicovaSlova
Holographic interferometry; pulsatile flow; hot wire anemometry; temperature measurement
n3:klicoveSlovo
n6:hot%20wire%20anemometry n6:temperature%20measurement n6:pulsatile%20flow n6:Holographic%20interferometry
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[BA64CBA8F853]
n3:nazevZdroje
International Journal of Chemical and Environmental Engineering
n3:obor
n17:BK
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n16:IAA200760801 n16:GCP101%2F11%2FJ019
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
2011
n3:tvurceVysledku
Lédl, Vít Psota, Pavel Doleček, Roman Vít, Tomáš
n3:zamer
n20:MSM4674788501
s:issn
2010-376X
s:numberOfPages
4
n18:organizacniJednotka
24220