Results 51 to 60 of about 87,747 (212)

Trajectory optimization of a deflectable nose missile

Defence Technology, 2017
The deflectable nose missile has a longer range by deflecting its nose to improve its aerodynamic feature. Based on detached eddy simulation (DES), the supersonic flow fields of a missile with deflectable nose are simulated numerically and its ...
Zhi-yong Zhang, Qi-zhong Tang, Xiao-hui Sun, Zhi-hua Chen   +3 more
doaj   +1 more source

A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a footbridge [PDF]

, 2009
The results of a numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a highway in the north of England are presented.
Taylor, I.J., Vezza, M.
core   +1 more source

CALCULATION OF THE AERODYNAMIC CHARACTERISTICS OF SUPERSONIC AXISYMMETRIC FEATHERED BODIES OF ROTATION

Авіаційно-космічна техніка та технологія, 2019
The subject of research in the article is the aerodynamic forces arising from the flight of supersonic feathered rotation bodies such as unguided rockets.
Олександр Миколайович Шийко, Анатолій Михайлович Павлюченко, Андрій Вікторович Скорик, Олексій Анатолійович Обухов, Ігор Володимирович Коплик   +4 more
doaj   +1 more source

Reynolds number effects on the transonic aerodynamics of a slender wing-body configuration [PDF]

Aerodynamic forces and moments for a slender wing-body configuration are summarized from an investigation in the Langley National Transonic Facility (NTF).
Cundiff, Jeffrey S., Fox, Charles H., Jr., Luckring, James M.   +2 more
core   +1 more source

Investigation of the aerodynamic characteristics of a lifting body in ground proximity [PDF]

, 2016
The use of cambered hull shapes in the next generation of lighter-than-air vehicles to enhance aerodynamic performance, together with optimized take-off manoeuvre profiles, will require a more detailed understanding of ground proximity effects for such
Garry, Kevin P., Holt, Jenny C., Smith, Tony   +2 more
core   +1 more source

Thermo-Elasto-Hydrodynamic Characteristics Analysis of Journal Microbearing Lubricated with Rarefied Gas

Micromachines, 2020
Temperature rise and elastic deformation are unavoidable issues occurring in high-speed gas microbearings due to the dominant small-scale fluid dynamics in rarefied gas flow applications.
Yao Wu, Lihua Yang, Tengfei Xu, Wei Wu
doaj   +1 more source

Tiltrotor CFD part I: validation [PDF]

, 2017
This paper presents performance analyses of the model-scale ERICA and TILTAERO tiltrotors and of the full-scale XV-15 rotor with high-fidelity computational fluids dynamics.
Barakos, George N., Gates, S., Jimenez Garcia, Antonio   +2 more
core   +1 more source

Airfoil Optimization Using Deep Learning Models and Evolutionary Algorithms for the Case Large-Endurance UAVs Design

Drones
This article presents the development of the AZTLI-NN network and the evaluation of this network as a set of evolutionary algorithms in airfoil optimization tasks. AZTLI-NN has the characteristic of predicting the aerodynamic coefficients of the airfoils
Evgenii Minaev, Jose Gabriel Quijada Pioquinto, Valentin Shakhov, Evgenii Kurkin, Oleg Lukyanov   +4 more
doaj   +1 more source

CFD Analysis on Aerodynamic Coefficients of Flying Saucer

AVIA, 2021
With the growing of Unmanned Aerial Vehicle (UAV) usage, many new types of UAV are introduced. Flying Saucer is a new type of UAV which is not yet famous in the market. The aim of this study is to analysis the aerodynamic coefficients of a Flying Saucer. The research question arise is What the optimum angle of attack for Flying Saucer flight is.
openaire   +2 more sources

SCI model structure determination program (OSR) user's guide [PDF]

The computer program, OSR (Optimal Subset Regression) which estimates models for rotorcraft body and rotor force and moment coefficients is described. The technique used is based on the subset regression algorithm.

core   +1 more source