%0 Journal Article %1 ISI:000379560500104 %A Axtmann, Meriam %A Poser, Rico %A von Wolfersdorf, Jens %A Bouchez, Marc %C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND %D 2016 %I PERGAMON-ELSEVIER SCIENCE LTD %J APPLIED THERMAL ENGINEERING %K Friction Heat Thermal factor; fins; performance} transfer; {Pin %P 1048-1056 %R 10.1016/j.applthermaleng.2016.04.066 %T Endwall heat transfer and pressure loss measurements in staggered arrays of adiabatic pin fins %V 103 %X In many applications, pin fin arrays are used for heat transfer enhancement. Due to additionally induced turbulence in the flow field, the heat transfer is increased. This study focuses on different pin fin arrays with thermally inactive pin fins. The configurations Include short and long elements. Transient experiments are conducted to determine the heat transfer characteristics on the endwall. Therefore, the transient liquid crystal technique is applied to obtain locally resolved heat transfer data. Three configurations with a relative spacing of 2.5 <= S/D <= 5 and aspect ratio of 2 <= H/D <= 4 are investigated. Hereby, the Reynolds number of the air flow, based on the pin fin diameter, varies from 3 . 10(3) to 3 . 10(4). First, an overview of the experimental setup and the transient measurement technique is given. Then, heat transfer results on the endwall are presented in terms of Nusselt number. Finally, the pressure drop is evaluated by the friction factor and the thermal performance of the investigated configurations is discussed. (C) 2016 Elsevier Ltd. All rights reserved.

@article{ISI:000379560500104, abstract = {{In many applications, pin fin arrays are used for heat transfer enhancement. Due to additionally induced turbulence in the flow field, the heat transfer is increased. This study focuses on different pin fin arrays with thermally inactive pin fins. The configurations Include short and long elements. Transient experiments are conducted to determine the heat transfer characteristics on the endwall. Therefore, the transient liquid crystal technique is applied to obtain locally resolved heat transfer data. Three configurations with a relative spacing of 2.5 <= S/D <= 5 and aspect ratio of 2 <= H/D <= 4 are investigated. Hereby, the Reynolds number of the air flow, based on the pin fin diameter, varies from 3 . 10(3) to 3 . 10(4). First, an overview of the experimental setup and the transient measurement technique is given. Then, heat transfer results on the endwall are presented in terms of Nusselt number. Finally, the pressure drop is evaluated by the friction factor and the thermal performance of the investigated configurations is discussed. (C) 2016 Elsevier Ltd. All rights reserved.}}, added-at = {2017-05-18T11:32:12.000+0200}, address = {{THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}}, affiliation = {{Axtmann, M (Reprint Author), Univ Stuttgart, Inst Aerosp Thermodynam ITLR, Pfaffenwaldring 31, D-70569 Stuttgart, Germany. Axtmann, Meriam; Poser, Rico; von Wolfersdorf, Jens, Univ Stuttgart, Inst Aerosp Thermodynam ITLR, Pfaffenwaldring 31, D-70569 Stuttgart, Germany. Bouchez, Marc, MBDA Bourges, Aerodynam \& Prop Dept, Bourges, France.}}, author = {Axtmann, Meriam and Poser, Rico and von Wolfersdorf, Jens and Bouchez, Marc}, author-email = {{meriam.axtmann@itlr.uni-stuttgart.de}}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/283ba2e5f712d9f369456c85896362f0c/hermann}, doi = {{10.1016/j.applthermaleng.2016.04.066}}, funding-acknowledgement = {{European Union {[}ACP0-GA-2010-263913]}}, funding-text = {{The authors would like to acknowledge the Aero-Thermodynamic Loads on Lightweight Advanced Structures II project. ATLLAS II, coordinated by ESA-ESTEC, is supported by the European Union within the 7th Framework Programme Theme 7 Transport, Contract No.: ACP0-GA-2010-263913. Further info on ATLLAS II can be found on: www.esaint/techresources/atllas\_II}}, interhash = {2f4c54e29454d798df5904e114ff65b3}, intrahash = {83ba2e5f712d9f369456c85896362f0c}, issn = {{1359-4311}}, journal = {{APPLIED THERMAL ENGINEERING}}, keywords = {Friction Heat Thermal factor; fins; performance} transfer; {Pin}, keywords-plus = {{RATIO}}, language = {{English}}, month = {{JUN 25}}, number-of-cited-references = {{33}}, pages = {{1048-1056}}, publisher = {{PERGAMON-ELSEVIER SCIENCE LTD}}, research-areas = {{Thermodynamics; Energy \& Fuels; Engineering; Mechanics}}, times-cited = {{0}}, timestamp = {2017-05-18T09:32:12.000+0200}, title = {{Endwall heat transfer and pressure loss measurements in staggered arrays of adiabatic pin fins}}, type = {{Article}}, volume = {{103}}, web-of-science-categories = {{Thermodynamics; Energy \& Fuels; Engineering, Mechanical; Mechanics}}, year = {{2016}} }