Section Co-ordinator: DLR, Oberpfaffenhofen (Germany)
It is still subject of speculation in recent research to which extend constructive measures at wings and flaps, which show significant differences in the near field vortex structure, affect the far field evolution of wake vortices. However, it is meanwhile generally accepted that the far field evolution is considerable determined by the prevailing meteorological conditions and ground effects. Major meteorological parameters are turbulence, shear, wind and stratification. Still, the influence of these parameters, and parameter combinations thereof, are not sufficiently understood. Main discrepancies and contrary understanding was recently reviewed by P.R. Spalart, Airplane Trailing Vortices, Ann. Review Fluid Mech. 30, 1998.
Therefore, the WakeNet section environment mainly focuses on the investigation of the environmental impact upon wake vortex evolution. The investigations are based on experimental labaratory and field measurements as well as numerical simulations. A corporate goal is the development of a simple parametric model which can predict wake vortex behavior in a given environment in real time.
The pre-condition for such wake vortex predictions is short time forecasting of the relevant meterological conditions. Here, the approaches range from simple wind-speed persistence forecasting based on statistical wind properties to terminal wheather nowcasting which uses sophisticated coupling of forecasting tools and the assimilation of measured data which may stem from various ground based measurement techniques e.g. wind profilers, wind radar or from aircraft data transfered by data link.
Interest groups of the section environment are:
- Institut Für Meteorologie und Klimatologie der Universit ät Hannover (IMK Hannover)
contact person:
Prof. Dr. Thomas Hauf (hauf@muk.uni-hannover.de)
Institut für Meteorologie und Klimatologie
Universität Hannover
Herrenhäuser Str. 2
30419 Hannover
Germany
Tel: ++49/0511/762-2677
Fax: ++49/0511/762-4418
interests:
Assessment of meteorological aircraft data provided by data-link
LES of wake vortices
- Deutscher Wetterdienst - Geschaeftsfeld Luftfahrt (DWD)
contact person:
Dr. Thomas Hafner (thafner@dwd.D400.de)
Deutscher Wetterdienst
Postfach 10 04 65
63004 Offenbach
Germany
Tel: ++49/69/8062-2897
Fax: ++49/69/8062- 14
interests:
Short-term-forecasting of the terminal wheather (Nowcasting)
- The Met.Office
contact persons:
Neil Halsey (nhalsey@meto.gov.uk), Julie Turner
Met.Office
London Road Bracknell Berkshire RG12 2SZ
UK
Tel: +44/1344/8564
Fax: +44/1344/856099
interests:
Short-term wind-forecasting in the terminal area
incident data base (ETWIRL)
- Meteo France
contact persons:
J.M. Carriere (jean-marie.carriere@meteo.fr)
Meteo France
SCEM/PREVI/AERO
42, av. G. Coriolis
F-31057 Toulouse Cedex
France
Interest:
crosswind, nowcasting
LES of wake vortices
- Institute for Aeronautical and Aerospace Engineering
contact person:
Lars Tuerk (tuerk@lu.ilr.rwth-aachen.de)
Institut fuer Luft- und Raumfahrt
RWTH Aachen
Wuellnerstr. 7
5 2062 Aachen
Germany
Tel: ++49/241/806814
Fax: ++49/241/8888233
interests:
ground effect, near field
- Meteo France
contact persons:
J.M. Carriere (jean-marie.carriere@meteo.fr)
Meteo France
SCEM/PREVI/AERO
42, av. G. Coriolis
F-31057 Toulouse Cedex
France
Interest:
crosswind, nowcasting
LES of wake vortices
- Meteo France
contact persons:
Alex Corjon (corjon@cerfacs.fr)
CERFACS
42, av. G. Coriolis
F-31057 Toulouse Cedex
France
Interest:
LES of wake vortices in the atmospheric boundary layer: 3D ground, turbulence,wind, shear, startification effects
- DLR - Physik der Atmosphäre
contact person:
Thomas Gerz (gerz@dlr.de)
DLR Oberpfaffenhofen
D-82234 Wessling
Germany
Tel: ++49/ 815/3281333
Fax: ++49/ 815/3281841
interests:
Information about the wake vortex activities of the DLR Institute of Atmospheric Physics and the establishment of the DLR Project Wake Vortex which will start in January '99 may be found here (http://www.pa.op.dlr.de/wirbelschleppe/WakeVortex.html).