NUMERICAL SIMULATIONS OF AERIAL APPLICATION SYSTEMS: DEVELOPMENT OF THE MODELS AND THEIR APPLICATIONS
Fecha
2010-11-29Autor
Hazebrouck, Guillermo A.
Preidikman, Sergio
Massa, Julio C.
Institución
Resumen
In the present effort, numerical algorithms are developed and validated in order to reach a
better comprehension of aerial application systems most commonly used in practice. The main idea
consists in treating the airstream, the aircraft, the droplets, and the ground surface as elements of a
single dynamic system, so that all the governing equations can be simultaneously and interactively
integrated in the time domain. The coupled problem is attacked by introducing i) an aerodynamic
model; ii) an aircraft geometric shape model; iii) a ground surface model; and iv) a method that
handles all the three models at the same time. The developed tool is quite innovative since it is based
on an aerodynamic method that has never been used for this purpose before, the "Unsteady Vortex
Lattice Method". Through its implementation, all the aerodynamic interaction effects between the
components of the system can be taken into account. This allows treating at once several problems of
aerodynamic interaction that are normally treated separately, such as ground effect and aerodynamic
influence of the wingtip-devices.