The aerodynamic performance of a recent developed ducted fan Unmanned Aerial Vehicle
(UAV) was experimentally assessed by means of force, pressure and PIV measurements …

Morphing, which changes the shape and configuration of an aircraft, is being adopted to
expand mission capabilities of aircraft. The introduction of biologically-inspired morphing is …

MANY studies into morphing aircraft have focused on the steady-state benefits of altering a
configuration for issues such as fuel consumption, range and endurance, cost and logistics …

Flight capability for micro air vehicles is rapidly maturing throughout the aviation community;
however, mission capability has not yet matured at the same pace. Maintaining trim during a …

A vertical takeoff and landing, unmanned aerial vehicle is presented that features a
quadrotor design for propulsion and attitude stabilization, and an annular wing that provides …

A simple, accurate, analytical model is developed for predicting the forces and moments on
subsonic ring-wing propulsors (aka fan ducts and shrouded propellers) at angle of attack …

A simple, accurate, reduced-order model is developed for predicting the maximum available
thrust performance of subsonic ring-wing propulsors varying in shroud airfoil length …

ANNULAR wings belong to the class of nonplanar wing configurations and have gained
significant popularity recently [1–5] among the designers of unmanned air vehicles (UAVs) …

ANALYTICAL methods are discussed and developed for predicting loads and moments on
axisymmetric ducts and ring wings at angles of attack or yaw as depicted in Fig. 1. These are …

Purpose This research aims to present an aero-propulsive interaction model applied to
conceptual aircraft design with distributed electric propulsion (DeP). The developed model …