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Reynolds number effects in flow around more or less bluff bodies including a bridge deck section

Schewe, G. (2002) Reynolds number effects in flow around more or less bluff bodies including a bridge deck section. 7° Congresso Nazionale die Ingegneria del vento IN-VENTO-2002, Milano, 15-18 settembre 2002.

Full text not available from this repository.

Abstract

Long span bridges are composed of more or less bluff bodies. A main point of the lecture is the question: In which case does the Re.No. play a significant role, in particular concerning their influence on the propensity to flow induced vibrations. The paper reviews the results of experiments carried out over a wide range of Reynolds numbers (10^4<RE<10^7) on 2-D sections. The bodies are circular cylinder, a bridge section, and a thick airfoil at high angle of attack. In all cases, variation of Re led to dramatic changes in the force coefficients and St. No., caused by changes in the topological structurre of the separated flow. The important results are (i) flow around 2-D bodies can be highly three-dimensional, (ii) there are 2-D sections that behave as a bluff- or streamlined body, depending on Re, an (iii) slender bodies with sharp-edged cross-sections may also suffer pronounced Reynolds effects.

Item URL in elib:https://elib.dlr.de/14367/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Reynolds number effects in flow around more or less bluff bodies including a bridge deck section
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schewe, G.UNSPECIFIEDUNSPECIFIED
Date:2002
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Reynolds number effects, bluff bodies, bridge section, flow induced vibrations
Event Title:7° Congresso Nazionale die Ingegneria del vento IN-VENTO-2002, Milano, 15-18 settembre 2002
Organizer:Politecnico Milano
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:45

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