Title: An Experimental/Numerical Investigation on Drag Reduction by Dimples
Authors: Lienhart, Hermann
Breuer, Michael 
Köksoy, Cagatay
Language: eng
Subject (DDC): 000 Informatik, Information & Wissen, allgemeine Werke
500 Naturwissenschaften
600 Technik
Issue Date: 2010
Publisher: WILEY-VCH
Document Type: Conference Object
Source: Lienhart, H., Breuer, M. and Köksoy, C. (2010), An Experimental/Numerical Investigation on Drag Reduction by Dimples. Proc. Appl. Math. Mech., 10: 31-34. https://doi.org/10.1002/pamm.201010009
Journal / Series / Working Paper (HSU): Proceedings in Applied Mathematics and Mechanics (PAMM)
Volume: 10
Issue: 1
Page Start: 31
Page End: 34
The paper is concerned with experimental and numerical investigations of the turbulent flow over dimpled surfaces. Shallow dimples distributed regularly over the wall of a plane channel with large aspect ratio are used to study their effect on the skin-friction drag. The resulting pressure drop in the channel was measured for smooth and dimpled walls. In addition to these investigations on internal flows, an external flow study was performed and boundary-layer profiles were measured using a Pitot-tube rake. Complementary to the measurements, direct numerical simulations for the internal flow configuration with and without dimples were carried out for two different grid resolutions and analyzed in detail. The objective was to clarify whether or not dimples cause reduction of the skin-friction drag.
Organization Units (connected with the publication): Strömungsmechanik 
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/pamm.201010009
Publisher DOI: 10.1002/pamm.201010009
Appears in Collections:3 - Reported Publications

Show full item record

CORE Recommender

Google ScholarTM




Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.