Small multirotor unmanned aerial vehicles (UAVs) are suitable for surveillance or inspection
operations, such as disaster site observations or building inspections, as they can hover …

In this study, the thrust performance of a staggered rotor system in-ground effect (IGE) and
out-of-ground effect (OGE) while considering the interaction on wake characteristics were …

In this work, computational fluid dynamics was used to support safety analyses of rotors
operating in ground effect. Initially, the research focused on the evaluation and prediction of …

In this work, brownout simulations using both Lagrangian and Eulerian frames of reference
are presented. The work compares results between these two methods and with …

Brownout dust cloud simulations were conducted for rotorcraft undergoing representative
landing maneuvers, primarily to better understand the effects of different rotor placement and …

The ground has a strong influence on the induced wake, and on the performance of every
type of rotor. This influence has been discussed in several works, considering from full-scale …

Multirotor unmanned aerial vehicles (UAVs) have gone from a single rotor to multiple rotors.
Multirotor unmanned aerial vehicles (UAVs) are now used for surveillance and rescue …

Helicopters can experience brownout when flying close to a dusty surface. The uplifting of
dust in the air can remarkably restrict the pilot's visibility area. Consequently, a brownout can …

This paper addresses the problem of critical operations in Degraded Visual Environment
(DVE). DVE usually refer when the perception of a pilot is degraded by environmental …

The thesis compares different computational approaches for simulate brownout clouds.
Brownout relates to blinding dust clouds stirred up by the helicopter rotor downwash during …