Axisymmetric impinging jet excited by a synthetic jet system
Result description
An axisymmetric air jet was excited, using a system of four synthetic jets, to the helical or bifurcating modes. The task was studied experimentally: the flow visualization, hot-wire anemometry, PIV, and naphthalene sublimation techniques were used. Theeffects of the Strouhal number and nozzle-to-wall spacing on a distribution of the local heat transfer were evaluated. The most significant effects (heat transfer enhancement 40% in the stagnation area) were found at the Strouhal numbers 0.32, Reynolds number 1600, ratio of the control to primary jet momentum rates 2.4%, and under small nozzle-to-wall spacing H/D = 2.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/46747885:24220/12:#0002363
Result on the web
http://www.sciencedirect.com/science/article/pii/S0017931011005126
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Axisymmetric impinging jet excited by a synthetic jet system
Original language description
An axisymmetric air jet was excited, using a system of four synthetic jets, to the helical or bifurcating modes. The task was studied experimentally: the flow visualization, hot-wire anemometry, PIV, and naphthalene sublimation techniques were used. Theeffects of the Strouhal number and nozzle-to-wall spacing on a distribution of the local heat transfer were evaluated. The most significant effects (heat transfer enhancement 40% in the stagnation area) were found at the Strouhal numbers 0.32, Reynolds number 1600, ratio of the control to primary jet momentum rates 2.4%, and under small nozzle-to-wall spacing H/D = 2.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Heat and Mass Transfer
ISSN
0017-9310
e-ISSN
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Volume of the periodical
55
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
1279-1290
UT code for WoS article
000300470200078
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BK - Liquid mechanics
Year of implementation
2012