Vortex-Generator Pairs for Vortex-Induced Heat-Transfer Enhancement in Heat-Exchanger Channels

  • The objective of the presented work is to investigate possibilities for increasing the heattransfer in heat-exchanger channels for aircraft applications by using flow-manipulating devices. Focal point of the investigation are different arrangements of vortex-generator pairs within a generic heat-exchanger channel. The DLR URANS CFD solver THETA has been used to carry out numerical simulations of the laminar flow within a rectangular channel with integrated vortex generators. In particular, the analysis of the interaction of generated vortices with the stratified thermal boundary layer, the impact of vortical flow structures on heated walls and the enforced mixed-convection flow is of special interest. The final goal is the evaluation of the applicability of oppositely arranged vortex-generator pairs for the enhancement of vortex-induced heat-transfer.

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Author:Markus RüttenORCiD, Lars KrenkelORCiDGND
Parent Title (English):New Results in Numerical and Experimental Fluid Mechanics VII : Contributions to the 16th STAB/DGLR Symposium Aachen, Germany 2008
Publisher:Springer Berlin Heidelberg
Place of publication:Berlin, Heidelberg
Editor:Ernst Heinrich Hirschel, Wolfgang Schröder, Kozo Fujii, Werner Haase, Bram Leer, Michael A. Leschziner, Maurizio Pandolfi, Jacques Periaux, Arthur Rizzi, Bernard Roux, Yurii I. Shokin, Andreas Dillmann, Gerd Heller, Michael Klaas, Hans-Peter Kreplin, Wolfgang Nitsche
Document Type:Part of a Book
Year of first Publication:2010
Release Date:2022/12/10
Tag:Heat Exchanger; Heat Transfer; Heated Wall; Thermal Boundary Layer; Vortex Generator
First Page:555
Last Page:562
Andere Schriftenreihe:Notes on Numerical Fluid Mechanics and Multidisciplinary Design ; 112
Institutes:Fakultät Maschinenbau
Fakultät Maschinenbau / Labor Biofluidmechanik
Publication:Externe Publikationen
research focus:Produktion und Systeme
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG