In the design of the wing airfoils for transport aircraft, it is necessary to meet different requirements for distinct phases of flight, namely the cruise flight on one side and the take-off and landing on the other side...
The objective of this paper is to present a comparison between different types of chevrons and their influence on the acoustic power level radiated by the flow over them. The comparison was performed using a two-dimensio...
This paper focuses on a new comparison of the behavior of three Weighted Essentially Non-Oscillatory (WENO) type numerical schemes for three different nonlinear fluxes, in the case of scalar conservation law. The analyti...
The aircraft that flies like an airplane but takes off and lands like a chopper. It has been a long, strange trip: the V-22 has been 25 years in development, more than twice as long as the Apollo program that put men on...
From all accounts the ion thrusters are characterized by the fact that they produce a very high exhaust velocity and specific impulse, sometimes too high for many missions. The exhaust velocity of the ionized particles i...
INCAS 2.5D mid-scale model
In the design of the wing airfoils for transport aircraft, it is necessary to meet different requirements for distinct phases of flight, namely the cruise flight on one side and the take-off and landing on the other side...
Acoustic characteristics of the flow over different shapes of nozzle chevrons
The objective of this paper is to present a comparison between different types of chevrons and their influence on the acoustic power level radiated by the flow over them. The comparison was performed using a two-dimensio...
Assessment of three WENO type schemes for nonlinear conservative flux functions
This paper focuses on a new comparison of the behavior of three Weighted Essentially Non-Oscillatory (WENO) type numerical schemes for three different nonlinear fluxes, in the case of scalar conservation law. The analyti...
Osprey – war for its own existence
The aircraft that flies like an airplane but takes off and lands like a chopper. It has been a long, strange trip: the V-22 has been 25 years in development, more than twice as long as the Apollo program that put men on...
Optimizing ideal ion propulsion systems depending on the nature of the propellant
From all accounts the ion thrusters are characterized by the fact that they produce a very high exhaust velocity and specific impulse, sometimes too high for many missions. The exhaust velocity of the ionized particles i...