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Wake turbulence is a disturbance in the atmosphere that forms behind an aircraft as it passes through the air. It includes variety of elements, the most significant of which are wingtip vortices and jetwash. Jetwash refers to the rapidly moving gases expelled from a jet engine; it is extremely turbulent but of short duration. Wingtip vortices, however, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft. It is therefore not true turbulence in the aerodynamic sense, as true turbulence would be chaotic. Instead, it refers to the similarity to atmospheric turbulence as experienced by an aircraft flying through this region of disturbed air.

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rdf:type
rdfs:label
  • Wirbelschleppe (de)
  • Turbulence de sillage (fr)
  • Turbolenza di scia (it)
  • 後方乱気流 (ja)
  • 항적난기류 (ko)
  • Zogturbulentie (nl)
  • Esteira de turbulência (pt)
  • Wake turbulence (en)
rdfs:comment
  • La turbulence de sillage est une turbulence aérodynamique qui se forme derrière un aéronef. Elle comprend les phénomènes de jetwash et de tourbillon marginal. Le jetwash est dû aux gaz expulsés par les réacteurs. Il est extrêmement violent, mais de courte durée. À l'inverse, le tourbillon marginal correspond à des turbulences aux extrémités des ailes et sur leur surface supérieure. Elles sont moins violentes, mais comme elles peuvent durer jusqu'à trois minutes après le passage d'un avion, elles sont une cause sournoise d'accidents d'avions. (fr)
  • La turbolenza di scia (o wake turbulence in inglese) è la turbolenza che si forma alle spalle di un aeromobile durante il suo movimento nell'aria. Comprende varie componenti i più importanti dei quali sono i vortici d'estremità d'ala (wingtip vortices in inglese) e il jetwash. Il jetwash è l'insieme delle masse d'aria espulse da un motore a getto; è estremamente turbolento, ma di breve durata. Di contro, i vortici d'estremità d'ala sono molto più stabili e possono permanere in aria fino a tre minuti dopo il passaggio di un aeromobile. (it)
  • 後方乱気流(こうほうらんきりゅう、英: wake turbulence)は、航空機の運航によって引き起こされる乱気流のことである。その中には翼の上下面の圧力差によってその背後に発生する気流の渦(翼端渦)や、ジェットエンジンの、ヘリコプターのダウンウォッシュなどがある。 (ja)
  • Zogturbulentie is de turbulentie die ontstaat in het zog van een vliegtuig. De zogturbulentie bevindt zich direct achter de beide vleugeltippen van een vliegtuig. Hoe meer liftkracht geleverd wordt, hoe groter de zogturbulentie achter het vliegtuig. Algemeen is dus te zeggen: hoe zwaarder het vliegtuig, hoe groter de turbulentie. De turbulentie veroorzaakt een werveling waardoor een volgend vliegtuig een ongewenste rolbeweging kan maken om de van het vliegtuig. De turbulentie kan zo groot zijn dat een volgend vliegtuig onvoldoende hoogte/tijd heeft om te herstellen van deze "rol" en neerstort. (nl)
  • 항적난기류(航跡亂氣流)는 회전하는 공기의 튜브로 리프트 힘을 발생시키고 남겨진 것이다. 비행익상 소용돌이는 매우 빠른 속력의 소용돌이 스핀의 중심인 각 날개 끝에서 시작되었다. 그들은 매우 낮은 기압의 영역이다. 비행익상 소용돌이의 핵심은 때로 저기압에서 수증기의 응축 때문에 때때로 관측된다. (ko)
  • Bei Wirbelschleppen, auch Wirbelzöpfe oder Randwirbel genannt, handelt es sich um zopfartige, gegenläufig drehende Luftverwirbelungen hinter fliegenden Flugzeugen. Ihre Intensität ist vor allem vom Gewicht des Flugzeuges abhängig. Die Lebensdauer wird von Wind und Atmosphäre beeinflusst. Im Zentrum der Wirbel ist der Luftdruck vermindert. Bei hoher Luftfeuchtigkeit kann dort Kondensation einen schmalen, sichtbaren Streifen erzeugen, der direkt hinter den Flügelspitzen beginnt. (de)
  • Wake turbulence is a disturbance in the atmosphere that forms behind an aircraft as it passes through the air. It includes variety of elements, the most significant of which are wingtip vortices and jetwash. Jetwash refers to the rapidly moving gases expelled from a jet engine; it is extremely turbulent but of short duration. Wingtip vortices, however, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft. It is therefore not true turbulence in the aerodynamic sense, as true turbulence would be chaotic. Instead, it refers to the similarity to atmospheric turbulence as experienced by an aircraft flying through this region of disturbed air. (en)
  • Na aeronáutica, esteira de turbulência é uma perturbação na atmosfera que se forma atrás de uma aeronave quando esta se move através do ar. Ela inclui vários componentes, dos quais os mais importantes são os vórtices de ponta de asa e os gases de escape. O termo "gases de escape" refere-se simplesmente aos gases que se movem rapidamente ao serem expelidos por um motor a jato - são extremamente turbulentos, mas de curta duração. Vórtices de ponta de asa, entretanto, são muito mais estáveis e podem permanecer no ar por até três minutos após a passagem de uma aeronave. Não é, no sentido aerodinâmico, uma verdadeira turbulência, pois não é uma perturbação caótica do ar. Em vez disso, é semelhante à turbulência atmosférica sentida por uma aeronave voando em região de ar perturbado. (pt)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/North_American_XB-70A_Valkyrie_just_after_collision_061122-F-1234P-037.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Airplane_vortex_edit.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/FAA-Aircraft-Weight-Class-and-ICAO-Wake-Turbulence-Categories-WTC.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Vorticesfeb0709out.jpg
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