Results 31 to 40 of about 67,962 (296)

Direct numerical simulation of hypersonic boundary layer transition over a blunt cone with a small angle of attack [PDF]

open access: yes, 2010
The direct numerical simulation of boundary layer transition over a 5° half-cone-angle blunt cone is performed. The free-stream Mach number is 6 and the angle of attack is 1°.
Li XL(李新亮)   +3 more
core   +1 more source

The influence of aspect ratio and attack angle on the field structure and dynamic characteristics of the flow around an ellipsoid [PDF]

open access: yesAIP Advances
The flow of an incompressible viscous fluid around an ellipsoid at a moderate Reynolds number (Re = 300) is numerically investigated, revealing a series of variation laws related to vortex shedding, flow separation, and the lift and drag coefficients as ...
Junwei Li   +10 more
doaj   +1 more source

Influence of attack angle on vortex-induced vibration and energy harvesting of two cylinders in side-by-side arrangement

open access: yesAdvances in Mechanical Engineering, 2019
The vortex-induced vibration and energy harvesting of two cylinders in side-by-side arrangement with different attack angles are numerically investigated using two-dimensional unsteady Reynolds-Averaged Navier–Stokes simulations.
Li Zhang, Xinru Mao, Lin Ding
doaj   +1 more source

The interaction between flow-induced vibration mechanisms of a square cylinder with varying angles of attack [PDF]

open access: yes, 2012
This study examines the influence of angle of attack of a square section cylinder on the cylinder’s flow-induced vibration, where the direction of the vibration is transverse to the oncoming flow.
Nemes, Andras   +3 more
core   +1 more source

Robust Pitch Autopilot Design Based on Logarithmic Barrier Lyapunov Method [PDF]

open access: yesHangkong bingqi
When the phased array radar-guided missile intercepts a high speed target with large maneuvering, the aerodynamic parameters of the missile body vary dramatically and become nonlinear, which affects the response of the control system to the large angle ...
Wang Wei, Yang Jing, Lin Shiyao, Wang Hong, Wang Shaolong
doaj   +1 more source

Simulation of the Effects of Angle of Attack and Projectile Contour in Damage Development in Reinforced Concrete

open access: yesDesigns, 2021
The impact of projectiles in reinforced or unreinforced concrete is of prime importance in applied mechanics and engineering. Parameters such as penetration depth, velocity or energy of the projectile, and the geometry and the angle of attack of the ...
Stefan P. Jurecs, Ali Tabei
doaj   +1 more source

Study on correction technology of aircraft angle-of-attack signal based on estimation of side-slip angle

open access: yesHangkong gongcheng jinzhan
The angle-of-attack signal is very important for modern fly-by-wire flight control system aircraft. The inconsistency of the local airflow on both sides of the nose will cause the difference of the angle-of-attack signal.The signal-monitoring voting ...
XUE Yuan, LIU Shimin, WEI Jianlong
doaj   +1 more source

Plunging Airfoil: Reynolds Number and Angle of Attack Effects [PDF]

open access: yes, 2020
Natural flight has consistently been the wellspring of many creative minds, yet recreating the propulsive systems of natural flyers is quite hard and challenging.
Neves, Fernando M. S. P.   +14 more
core   +1 more source

The influence of the angle of attack on passenger comfort

open access: yes, 2021
The angle of attack (AOA) of an airplane changes the direction of the gravitational force on passengers and thereby might influence passengers’ flying experience. However, the contribution of the AOA regarding comfort/discomfort is not fully explored. In
Song, Y. (author)   +5 more
core  

The research of attack angle measurment of projectile with CCD vertical target system

open access: yes, 2011
Based on the coordinate measurement principle of the CCD vertical target system, a new method is proposed to measure the attack angle of flying projectile.
Xu Wei   +4 more
core   +1 more source

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