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Assessment of Wake-Vortex Encounter Probabilities for Crosswind Departure Scenarios

Holzäpfel, Frank and Kladetzke, Jan (2011) Assessment of Wake-Vortex Encounter Probabilities for Crosswind Departure Scenarios. Journal of Aircraft, 48 (3), pp. 812-822. DOI: 10.2514/1.C000236.

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Official URL: http://www.aiaa.org/content.cfm?pageid=322&lupubid=22

Abstract

The WakeScene-D (Wake Vortex Scenarios Simulation Package for Departure) software package has been developed for comprehensive airspace simulations of takeoff and departure. WakeScene-D consists of modules that model traffic mix, aircraft trajectories, meteorological conditions, wake-vortex evolution, and potential hazard area. The software package estimates the probability to encounter wake vortices in different traffic and crosswind scenarios using Monte Carlo simulation in a domain ranging from the runway to an altitude of 3000 ft above ground. A comparison with measured vortex tracks of about 10,000 departures from runway 25R of Frankfurt airport indicates good agreement of global wake-vortex transport characteristics in ground proximity. The standard departure situation employing a 2 min aircraft separation is compared with scenarios with reduced departure separations and various crosswind conditions. Comprehensive sensitivity analyses have been conducted that are briefly recapitulated. Effects related to departure-route combinations and wind-direction sectors are reported in more detail. Finally, an advanced scenario with an asymmetric crosswind criterion is introduced.

Document Type:Article
Title:Assessment of Wake-Vortex Encounter Probabilities for Crosswind Departure Scenarios
Authors:
AuthorsInstitution or Email of Authors
Holzäpfel, Frankfrank.holzaepfel@dlr.de
Kladetzke, Janjan.kladetzke@dlr.de
Date:May 2011
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:48
DOI:10.2514/1.C000236
Page Range:pp. 812-822
Status:Published
Keywords:wake vortex, departure, crosswind, risk analysis
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Wake Vortices (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Dr.-Ing. Frank Holzäpfel
Deposited On:18 Jul 2011 09:23
Last Modified:13 Feb 2013 14:59

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