A computational study was performed to determine the predictive capability of a Reynolds averaged Navier-Stokes code (CFL3D) for two-dimensional and three-dimensional multielement high-lift systems. Three configurations were analyzed: a three-element airfoil, a wing with a full span flap and a wing with a partial span flap. In order to accurately model these complex geometries, two different mu...

The reciprocating-airfoil (RA) driven vertical take-off and landing (VTOL) aircraft is a new concept that utilizes the reciprocating motion of wings to provide lift for landing. RA are shaped like fixed-wing airplane work as fixed while cruising. wing undergoes substantial linear during may generate similar aircraft. unique structural characteristics their high inertia lifting force loadings. T...

Sir George Cayley invented the conventional configuration of the airplane at the turn of the 19 century. Otto Lilienthal realized that building a successful aircraft meant learning how to fly: he became the first hang glider pilot and also the first flight fatality. The Wright Brothers absorbed all that was known in aeronautics before them, but then added their own discoveries and developed the...

Since the first successful airplane, invented by The Wright brothers in early 1900s, air travel has become one of most common modes transportation. While airplane production and use rapidly increase, explanations regarding physics flight remain elusive due to major shortcomings. With all research available, this paper aims explore how accurately current theories have explained lift an airplane'...

This paper proposes a novel method for the unbounded oscillation prevention of an aircraft wing under flexural torsional flutter, innovative multiagent attitude to control with surface consisting managed rotating “feathers” (agents). Theoretical evaluation demonstrates its high aptitude avoid wing’s flexural-torsional vibrations via expansion model’s ability dampen oscillations. It potentially ...

In many applications the viscous terms become only important in parts of the computational domain. A typical example is the flow of air around the wing of an airplane. It can then be desirable to use an expensive viscous model only where the viscosity is essential for the solution and an inviscid one elsewhere. This leads to the interesting problem of coupling partial differential equations of ...

Data visualization can be defined as the gaining of insight by making a picture out of numbers, and the important role that it plays in the effective interpretation and analysis of numerical data has been recognized for a long time [1]. The type of data to be analyzed can vary from one-dimensional time series (e.g. yearly changes in salary) to multidimensional vector-based datasets (e.g. air fl...

Visual detection based sense and avoid problem is more and more important nowadays as UAVs are getting closer to entering remotely piloted or autonomously into the airspace. It is critical to gain as much information as possible from the silhouettes of the distant aircrafts. In our paper, we investigate the reachable accuracy of the orientation information of remote planes under different geome...

High-speed movies of dragonflies turning in flight on flexible tethers show that there are two distinct modes of turning. In the 'conventional' mode, dragonflies use left-right asymmetries in the wing stroke amplitude, and occasionally in the angle of attack, to produce more lift and thrust on one side than the other. This causes the animal to roll into a bank, so that the lift vector has a sid...