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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Direct numerical simulation of stagnation point heat transfer affected by varying wake-induced turbulence
Journal of Turbomachinery, Volume 136, No. 2, Article 021008, Year 2013
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Description
In the present study the flow and heat transfer in a tandem cylinder setup are simulated by means of embedded direct numerical simulation (DNS). The influence of wake turbulence on the heat transfer in the stagnation region of the rear cylinder is investigated. The oncoming flow is varied by increasing the distance between the two cylinders, causing a change of the turbulent wake characteristics and the heat transfer. The data of both simulations show good agreement with an existing experimental correlation in the literature. For the small wake generator distance, a clear shift of the maximum heat transfer away from the stagnation line is observed. This shift is less pronounced for the larger distance. © 2014 by ASME.
Authors & Co-Authors
Venema, Lars
Germany, Karlsruhe
Karlsruher Institut Für Technologie
von Terzi, Dominic A.
Germany, Karlsruhe
Karlsruher Institut Für Technologie
Germany, Munich
Ge Global Research - Europe
Bauer, Hans Jörg
Germany, Karlsruhe
Karlsruher Institut Für Technologie
Rodi, Wolfgang
Germany, Karlsruhe
Karlsruher Institut Für Technologie
Saudi Arabia, Jeddah
King Abdulaziz University
Statistics
Citations: 4
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1115/1.4023907
ISSN:
0889504X