Reducing circulation in a wake turbulence behind an airplane flying at low altitude

US8528858B2 · kind B2 · utility

Assignee

• DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE

Inventors

• Andreas Schroder · Oettingen, DE
• Robert Konrath · Oebisfelde, DE

Key dates

• Filing date: Apr 26, 2011
• Grant date: Sep 10, 2013
• Expiry date: Sep 26, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/10
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

For reducing a circulation of wake vortexes in a wake turbulence behind an airplane flying over ground at low altitude, at least one ring vortex of airflow is generated at the ground on each side of a vertical middle plane of the airplane. Each ring vortex has a vortex axis and a direction of propagation, wherein the vortex axis is oriented at an angle with regard to the ground, and wherein the propagation direction is oriented upwards from the ground; and each ring vortex disturbs at least one wake vortex to induce its decay.