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Statements

Subject Item
n2:RIV%2F60461373%3A22340%2F03%3A00007471%21RIV%2F2004%2FMSM%2F223404%2FN
rdf:type
skos:Concept n10:Vysledek
dcterms:description
The visual observation of flow patterns and shapes enables to decide whether the flow is laminar or turbulent. Depending on the character of the flow, the technologies based on heat or mass transfer have various efficiency. Then it is useful to measure and control the chaotic processes to obtain the turbulent flow with minimum consumption of energy. The images of laminar and turbulent flow shapes were scanned using digital camera in real time for various consumption of energy. The color 2D images were converted to the gray scale, passed through contextual filter and then compared to obtain the binary image of flow structure. The boundary contours were analyzed for the estimate of Hausdorf dimension using the boxcounting technique. The higher consumption of energy means the higher power of the water pump, then the higher Reynolds number and Hausdorf dimension of the flow shape. The fractal and multifractal characteristics can be used in the feedback control. The visual observation of flow patterns and shapes enables to decide whether the flow is laminar or turbulent. Depending on the character of the flow, the technologies based on heat or mass transfer have various efficiency. Then it is useful to measure and control the chaotic processes to obtain the turbulent flow with minimum consumption of energy. The images of laminar and turbulent flow shapes were scanned using digital camera in real time for various consumption of energy. The color 2D images were converted to the gray scale, passed through contextual filter and then compared to obtain the binary image of flow structure. The boundary contours were analyzed for the estimate of Hausdorf dimension using the boxcounting technique. The higher consumption of energy means the higher power of the water pump, then the higher Reynolds number and Hausdorf dimension of the flow shape. The fractal and multifractal characteristics can be used in the feedback control.
dcterms:title
Fractal Analysis of Laminar and Turbulent Flow Patterns Fractal Analysis of Laminar and Turbulent Flow Patterns
skos:prefLabel
Fractal Analysis of Laminar and Turbulent Flow Patterns Fractal Analysis of Laminar and Turbulent Flow Patterns
skos:notation
RIV/60461373:22340/03:00007471!RIV/2004/MSM/223404/N
n3:strany
70-70
n3:aktivita
n6:Z
n3:aktivity
Z(MSM 223400007)
n3:dodaniDat
n4:2004
n3:domaciTvurceVysledku
n12:2283840 n12:2685337 n12:5968585
n3:druhVysledku
n14:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
607662
n3:idVysledku
RIV/60461373:22340/03:00007471
n3:jazykVysledku
n15:eng
n3:klicovaSlova
fractal analysis, laminar flow, turbulent flow, process monitoring, boxcounting
n3:klicoveSlovo
n13:fractal%20analysis n13:laminar%20flow n13:process%20monitoring n13:boxcounting n13:turbulent%20flow
n3:kontrolniKodProRIV
[54B149F4DAEB]
n3:mistoKonaniAkce
Štrbské Pleso
n3:mistoVydani
Bratislava
n3:nazevZdroje
Proc. of 14th Int. Conf. on Process Control PC '03
n3:obor
n21:JB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n4:2003
n3:tvurceVysledku
Majerová, Dana Kubíček, Miroslav Kukal, Jaromír
n3:typAkce
n17:EUR
n3:zahajeniAkce
2003-04-04+02:00
n3:zamer
n18:MSM%20223400007
s:numberOfPages
1
n20:hasPublisher
Slovenská technická univerzita v Bratislave
n11:isbn
80-227-1902-1
n16:organizacniJednotka
22340