The design of unmanned aerial systems (UAS) for flight in the Martian atmosphere is a
relevant and current topic. The successful flight of the Ingenuity helicopter recently proved its …

In the present work, the aerodynamic performance of the Caradonna and Tung and S-76 in
hover were investigated using a simplified concept of multiple reference frame (MRF) …

Abstract Unmanned Aircraft Systems (UAS) are state of the art in the aerospace industry and
are involved in many operations. Although initially developed for military purposes …

The operation and aerodynamic performance of a helicopter rotor is strongly affected by the
structure of its wake, in particular regarding vortex–vortex interactions of hovering rotors …

A better understanding of downwash flow is required to increase the efficiency of unmanned
aerial vehicle sprayers. The tip vortex rolled up by the rotor blade tip rotating at high speed …

This paper concerns the implementation and evaluation of high-order reconstruction
schemes for predicting three well established hovering rotor flows ie Caradonna and Tung …

A model-scale hover test of a 4-bladed, 11.08-ft diameter rotor was recently completed
inside the National Full-Scale Aerodynamics Complex 80-by 120-Foot Wind Tunnel test …

A pressure-sensitive paint (PSP) system is presented to measure global surface pressures
on fast rotating blades. It is dedicated to solve the problem of blurred image data employing …

Good hover performance is a very important rotorcraft design criteria, but despite
advancements in the ability to predict and preserve the tip vortex, a limiting aspect of …

The blade tip vortex system is a crucial feature in the wake of helicopter rotors, and its
correct prediction represents a major challenge in the numerical simulation of rotor flows. A …