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Wind Impact on Single Vortices and Counterrotating Vortex Pairs in Ground Proximity”, Flow, Turbulence and Combustion

Holzäpfel, Frank and Tchipev, Nicola and Stephan, Anton (2016) Wind Impact on Single Vortices and Counterrotating Vortex Pairs in Ground Proximity”, Flow, Turbulence and Combustion. Flow Turbulence and Combustion, pp. 1-20. Springer. DOI: 10.1007/s10494-016-9729-2 ISSN 1386-6184

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Official URL: http://link.springer.com/article/10.1007/s10494-016-9729-2

Abstract

Wall-resolved large eddy simulations are employed to investigate the behaviour of wake vortices and single vortices in ground proximity at a variety of wind conditions. The six considered strengths of wind, ranging between 0.5 and 4 times the initial wake vortex descent speed, w0, include practically and theoretically significant wind speeds. A crosswind of 0.5 w0 may lead to windward stall posing a potential hazard to subsequently landing aircraft, whereas theoretical considerations predict that at 4 w0 the rebound of the luff vortex is completely suppressed. The same range of wind speeds is also used to investigate the effects of headwind and diagonal wind in order to discriminate between effects of environmental turbulence increasing with wind speed and the direction of the wind shear. The study has been complemented by a number of single vortex computations in order to differentiate between effects related to the mutual interaction of the vortex pair and the individual vortices with the turbulent boundary layer flow.

Item URL in elib:https://elib.dlr.de/103988/
Document Type:Article
Title:Wind Impact on Single Vortices and Counterrotating Vortex Pairs in Ground Proximity”, Flow, Turbulence and Combustion
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Holzäpfel, FrankDLR, IPAUNSPECIFIED
Tchipev, NicolaTU MünchenUNSPECIFIED
Stephan, AntonDLR, IPAUNSPECIFIED
Date:2016
Journal or Publication Title:Flow Turbulence and Combustion
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s10494-016-9729-2
Page Range:pp. 1-20
Publisher:Springer
ISSN:1386-6184
Status:Published
Keywords:Wake vortices · Large eddy simulation · Headwind · Crosswind · Ground effect
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:19 Apr 2016 13:47
Last Modified:06 Sep 2019 15:21

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