Merken

Wake vortices

Zitierlink des Filmsegments

Automatisierte Medienanalyse

Beta
Erkannte Entitäten
Sprachtranskript
IN thing
it is if I'm here today and traffic safety
controls the airport tower virtually all the risks and an
appropriate precautions in place
nevertheless there remains 1 little known as wake turbulence invisible giant vortices the trial behind aircraft posing a danger of following planes and hence of extreme import aviation research in this case the vortices happened to be visible the thanks to the travel which follows the aircraft this 3 D animation shows how a small craft following too close to a larger 1 runs the risk of losing control of flight attitude when it flies in the world of em smaller following aircraft experiences a high-volume moment causing the research project presented here focuses on how wake vortices come about how they free F and what counter measures could be taken the question is how to control visible motion of the swirling air the phenomenal wake turbulence becomes apparent when vapor trails form of the vortices behind the aircraft this will to errors made by artificial smoke resulting in bizarre shapes in the sky at the same time there an indication of the complex effects of atmosphere on the behavior of wake vortices despite the seemingly endless expanse of the sky that already bottlenecks air corridor was especially in the vicinity of airports as sufficient separation has to be maintained between aircraft the turbulent dissipate limits on the capacity of airports the standard separation is currently 6 miles the 2nd aircraft is heavier than the 1st this be reduced to 4 miles if an traffic continues to grow the minimum separation requirements will be over crowded airspace in the vicinity of airports based on current trends Air traffic is increasing at a disproportionate right demand increasingly exceeds airport capacity this
creates pressure on air traffic
control services responsible for coordinating the complex operations in and around the airport the pressure on pilots is also increasing flying into wake turbulence as a safety hazard pilots and the complex interaction of airport and air traffic aides to be looked at as a whole this is the purpose of the DLR awake vortex project named for publisher the DLR is collaborating with the number of research groups involving national European and other international partners a the aim is to find ways of influencing the stability and rolling moment of weak vortices at the point at which the generated 1st day it's a matter of finding out more about the behavior of the vortices in a wind tunnel modified wing configurations could also be initially tested his wife further than conducted in a water towing tank and with free flight models 5 by catapult I want a long
trial with the Airbus A 3 40 addresses the question of how instabilities come about and how the water convened used to faster the motion of the air made visible by smoke generators is recorded using a light are
highly sensitive laser based measuring instrument the
solution is to generate a multiple quota system for example using moving plant which depending on their position in relation to 1 another each generator secondly vortex with a different direction of rotation war by employing a fixed but differentiated flat position in the trial in a vortex rotates slowly about the main vortex a counter
rotating 2nd quarter is formed only been awakened by the differentiated flat position
the plan you illustrates quite clearly how this causes the main water indicate closer to the aircraft In the water tank to the presence of a 2nd vortex induces the main vortex substantially faster the trials and the data gathered they used to produce a number of computer simulations here you see a comparison of the the real behavior and the simulation of the high degree of similarity between the 2 suggests the simulation is accurate prediction tool so further trials could be performed on a virtual basis another measure is to install a gust capable of detecting weight overseas edition of natural on aircraft aircraft controls attuned to this react fast the pilot could have as part of the aviator
project the 1st trials with this laser technology are conducted sideways out the window the DLR test
VFW 6 1 4 at us takes off for a test flight the
motion of em ahead of the aircraft is scanned in a fast sequence the results indicate high potential for further develop another factor in
the behavior of wake vortices is the influence of ambient this
makes it imperative to conduct
trials under realistic conditions in addition to
detailed flight planning access
controls have been modified counter movement of the inner and
outer landing flap produces the 2nd Texas after a thorough check the assets is ready to take off a DLL Fulcrum will document the Charter the air colored smoke makes the wake vortices visible already take off the smoke generator ignites at high altitude
all eyes and cameras directed to the flight test that the
Forkin measures the structure of the vortices above by comparison the success of the measure is now visible decay shown above induced by the 2nd report Texas faster the modifications implemented on the aircraft but clearly worthwhile among the crosswind causes vortices to drift this cause problems especially at airports with clubs wrong here you see the vortex of aligned on display and the subsequent evaluation of the drift of the white vote practical use could be made of on the set logical conditions the aircraft be staff the reduced separation 55th vortices decay through turbulence and thermal stratification which strongly influenced the behavior of white voters used especially close to the ground this too His tested under realistic conditions as part of the village level see waken 88 project sophisticated trials conducted with the participation of DLA honor are connected the complexes vortices season their environment are recorded ELECTRONIC click and subsequent numeric the simulation shows 3 different patterns of Kerry as a function of his program this animation shows awake in the turbulent shear flow clearly have the simulation of the case registered by instrumentation after crossing a line of trees the white vortex behaves quite different under the influence of the Cross Wind from under laboratory conditions From dropping above a line of trees the wake vortex rises again and thus presented unexpected has following catch us to detect such phenomena in good time you need a system that interacts Welter predicted wake vortices this includes a detailed weather reports an estimate of the pattern of wake vortices determination of danger zones and the resulting stacking of aircraft a good weather must cover not only the overall situation but also the specific conditions in the airport facility for example particular terrain features such as differences in high water services Woods or other vegetation and the properties of the ground individual terrain features induce complex horizontal and vertical emotion as illustrated here by changes in atmospheric boundary layer In the course of the day In this way it is possible to predict the vertical motion of the vortex and its horizontal drift with different degrees of probability the intensity of the vortex remains stable for for a while and then drops off rapidly as you can see from the diagram and the real footage parallel to it wants the behavior of wake vortex has been captured the question arises as to where underwater kind of decay following a traffic is still at risk for test purposes the 2 other Dornier want to make by Technical University branch flew into the wake vortices of Fatah these are the dramatic pictures film from the cockpit half as soon as the Dornier want to wait flies in the wake vortices it experiences and be loading moment to the right such data collected in the course of numerous flights make it possible to infer a danger region that corresponds to the the red rectangle the red ovals of the real dangers depending on the drift and decay of the vortex it's also possible to calculate the danger regional glide path the simulation show firstly the glide path of 13 back Gates and then the drift of the vortex in the form of a around table each case the more precise predictions of faster the next aircraft follow In this way elements for observing the vortices are added to the weather vortex predictions system by DOT every airport would be equipped with such instrumentation which under favorable weather conditions would allow a significant increase in capacity over a half the high point of the research project is a series of campaigns in which the system described in this field used at takes off and
far from home on the ground of the different observation systems distributed the strategically important positions around the airport kinetic on the honor of life and death the deal the wind and temperature profile of dramatic the weather station with weather radar supported by climbing radios on the ads as fast as the best field and the computers receive the Home Street thanks evaluate the further
while on a larger scale was
conducted in 2003 in the south of of France as part of aviator project here to the measurement systems placed at 3 different points to enable ambush during the flight after attributed the test bed and Airbus A 3 40 was fitted with smoke generators noticed smoke
poured the giant aircraft takes off the measuring
instrumentation has been prepared at the trial site and overflight eagerly awaited
most of the reignited Andy a
340 approaches this file also generates a mass of data from the computer to evaluate the actual measurement of wind speed within the boundary layer shows by comparison with the prediction was very good the the DLR research is aimed at enabling aircraft separation to be safely reduced to 2 and a half miles this would constitute a significant step toward meeting the continuously increasing demands for safety and efficiency chance for no matter what
civil aviation assumes in
the future if travel be safe the answers must be found that the DLL is cooperating on this with numerous national European and international pop
an inning
Computeranimation
Flugzeugtechnik
Stellwerk
Vorlesung/Konferenz
Greiffinger
Vergaser
Kaltumformen
Rollsteig
Flugverhalten
Trenntechnik
Luftkissenschiff
Gigant <Bagger>
Fehlprägung
Hobel
Übungsmunition
Computeranimation
Greiffinger
Nassdampfturbine
Flugverhalten
Deutsches Zentrum für Luft- und Raumfahrt
Verdichter
Rangierlokomotive
Flugzeugtechnik
Modellbauer
Schleppen
Seitenleitwerk
Walzmaschine
Kotflügel
Nassdampfturbine
Flugzeugtechnik
Kraftmaschine
Drilling <Waffe>
Theke
Kraftfahrzeug
Computeranimation
Werkzeug
Greiffinger
Nassdampfturbine
Rangierlokomotive
Proof <Graphische Technik>
Ersatzteil
Computeranimation
Vereinigte Flugtechnische Werke
Greiffinger
Deutsches Zentrum für Luft- und Raumfahrt
Flugerprobung
Greiffinger
Schnittmuster
Feinstblech
Flugverhalten
Besprechung/Interview
Computeranimation
Uhrwerk
Flugerprobung
Flugzeugtechnik
Wölbungsklappe
Greiffinger
Cockpit
Kaltumformen
Linienschiff
Fahrgeschwindigkeit
Schnittmuster
Proof <Graphische Technik>
Holztrocknung
Kümpeln
Förderleistung
Übungsmunition
Flugverhalten
Trenntechnik
Knüppel <Halbzeug>
Ersatzteil
Schreibware
Greiffinger
Flugverhalten
Flugzeugtechnik
Ersatzteil
Computeranimation
Kraftmaschine
Deutsches Zentrum für Luft- und Raumfahrt
Trenntechnik
Flugzeugtechnik
Fahrgeschwindigkeit
Feile
Rollsteig
Flugzeugtechnik
Zivilflugzeug
Computeranimation

Metadaten

Formale Metadaten

Titel Wake vortices
Autor Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Lizenz Keine Open-Access-Lizenz:
Es gilt deutsches Urheberrecht. Der Film darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
DOI 10.5446/12818
Herausgeber Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Erscheinungsjahr 2013
Sprache Englisch

Inhaltliche Metadaten

Fachgebiet Technik
Abstract Currently, safety considerations related to wake vortices force pilots of small and medium-sized aircraft to maintain a separation of about 10 kilometres from heavier planes flying ahead of them. Soon, up to twice as many commercial aircraft could land on runways in good weather without endangering one another.
Schlagwörter aeronautics
wake vortices
aircraft

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