Simulation of Aircraft Encounters with Perturbed Vortices Considering Unsteady Aerodynamic Effects

Autor: Robert Luckner, David Bieniek
Rok vydání: 2012
Předmět:
Zdroj: AIAA Atmospheric Flight Mechanics Conference.
DOI: 10.2514/6.2012-4657
Popis: Today, wake-turbulence-related aircraft separations are a limiting factor for the capacity of airports worldwide. A detailed knowledge about the severity of potential wake encounters is necessary for a safe revision of the current International Civil Aviation Organization separation requirements. Vortex encounter simulation is an important part in building an understanding how the encountering aircraft is adversely affected by the vortex-induced disturbances. Whereas most research has focused on aircraft encounters with a pair of straight vortices, this work focuses on the simulation of encounters with perturbed vortices as they are observed under various atmospheric conditions. In addition, a method to account for unsteady aerodynamic effects during the computation of vortex-induced forces and moments is presented. Those effects are becoming especially important for vortex-induced disturbances of a higher-frequency range as they may appear during encounters with perturbed vortices. This combination of mo...
Databáze: OpenAIRE