Results 251 to 260 of about 90,246 (309)

A method for optimizing the aerodynamic layout of a helicopter that reduces the effects of aerodynamic interaction

Aerospace Science and Technology, 2019
Abstract The aerodynamic environment during the flight of a helicopter is complex because of the severe aerodynamic interaction between various components. To fully consider the effect of aerodynamic interaction in the initial stages of helicopter design and to eliminate or reduce its adverse effects, a comprehensive design optimization method for ...
Yang Lu, Taoyong Su, Renliang Chen
exaly   +2 more sources

Aerodynamic Interactions of Quadrotor Configurations

Journal of Aircraft, 2020
An advanced potential flow method is used to study the aerodynamic interactions between small rotors of quadrotor configurations and the impact on the overall flight performance.
Devin Barcelos, Amir Kolaei, Götz Bramesfeld   +2 more
openaire   +1 more source

Sidejet Aerodynamic Interaction Effects of the Missile

AIAA Journal, 2001
The side thruster is a highly responsive means for attitude control of missiles. The sidejet force is influenced by the interaction of the sidejet with the external airflow. The sidejet aerodynamic interaction effects were analyzed from following two viewpoints: 1) the pressure field in the vicinity of the sidejet and 2) the force acting on the missile.
Kousuke Kikumoto, Etsuroh Sentoh, Hikeki Tanaka, Tatsuo Takahashi   +3 more
openaire   +1 more source

Aerodynamic Interactions Between Parachute Canopies

Journal of Applied Mechanics, 2003
Aerodynamic interactions between parachute canopies can occur when two separate parachutes come close to each other or in a cluster of parachutes. For the case of two separate parachutes, our computational study focuses on the effect of the separation distance on the aerodynamic interactions, and also focuses on the fluid-structure interactions with ...
Stein, K., Tezduyar, T., Kumar, V., Sathe, S., Benney, R., Thornburg, E., Kyle, C., Nonoshita, T.   +7 more
openaire   +1 more source

Aerodynamics-structures interaction in MDO

7th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, 1998
This paper investigates the sensitivity of the aeroelastic analysis of aerospace structures to the aerodynamic analysis theory employed. Three similar potential flow aerodynamic analysis theories are applied in the aeroelastic analysis of several configurations.
S. Reed, Y. Moon, A. Bhungalia, V. Venkayya   +3 more
openaire   +1 more source

Interaction of missile propulsion and aerodynamics

The Aeronautical Journal, 2000
AbstractSome aspects of propulsion integration issues for ramjet powered missiles are outlined in this paper. The benefits of ramjet propulsion in the Mach 2-4 range over other types of airbreathing propulsion and rocket propulsion are well known. Compared with solid rocket motors, ramjet engines offer a much higher specific impulse and the capability ...
C. R. Buchanan, A. J. T. Gemmill, P. G. Martin   +2 more
openaire   +1 more source

Wing-Body Aerodynamic Interaction

Annual Review of Fluid Mechanics, 1972
that has proved most interesting to the theoretical aerodynamicist. Clea rly the former is concerned with the flow over, and the pressures, forces, and moments experienced by, generally shaped streamlined bodies and multiple lifting surfaces (wings, tails, con­ trols) in intimate combination. Until recently he has had to place primary reliance for such
H Ashley, W P Rodden
openaire   +1 more source

Aerodynamics and acoustics of rotor blade-vortex interactions

Journal of Aircraft, 1995
Helicopter rotor simulation codes of different organizations are validated against experimental data obtained in the DNW. The comparison addresses rotor blade loading, wake geometry, blade motion and noise radiation. Although specific differences exist the general prediciton of rotor noise is reasonably well.
Yu, Yung H., Tung, Chee, Gallman, Judy, Schultz, Klaus-J., van der Wall, Berend G., Spiegel, Pierre, Michea, B.   +6 more
openaire   +2 more sources

Benefits of aerodynamic interaction to the three surface configuration

Aircraft Systems and Technology Meeting, 1979
Recent wind tunnel data for a contemporary fighter with a dose-coupled horizontal canard added are presented with emphasis on demonstrating the beneficial aerodynamic interaction of the canard with the wing, empennage, and other aircraft control surfaces.
J. W. Agnew, J. R. Hess
openaire   +1 more source