Results 11 to 20 of about 88,513 (307)

Variation in aerodynamic coefficients with altitude

open access: yesResults in Physics, 2017
Precise aerodynamics performance prediction plays key role for a flying vehicle to get its mission completed within desired accuracy. Aerodynamic coefficients for same Mach number can be different at different altitude due to difference in Reynolds ...
Faiza Shahid   +3 more
doaj   +2 more sources

In-orbit aerodynamic coefficient measurements using SOAR (Satellite for Orbital Aerodynamics Research) [PDF]

open access: yesActa Astronautica, 2021
The Satellite for Orbital Aerodynamics Research (SOAR) is a CubeSat mission, due to be launched in 2021, to investigate the interaction between different materials and the atmospheric flow regime in very low Earth orbits (VLEO). Improving knowledge of the gas-surface interactions at these altitudes and identification of novel materials that can ...
Crisp, N.H.   +28 more
openaire   +7 more sources

Direct Estimation of Nonlinear Aerodynamic Coefficients [PDF]

open access: yesAIAA Atmospheric Flight Mechanics Conference and Exhibit, 2007
(Abstract) In this paper a parameter estimation technique is proposed which allows for direct updates to the aerodynamic coefficients represented in the form of table lookup. The proposed method is capable of capturing the nonlinearities in the coefficients.
Abhay Pashilkar, C Kamali, Jitendra Raol
openaire   +1 more source

Wind Tunnel Test Investigation on Unsteady Aerodynamic Coefficients of Iced 4-Bundle Conductors

open access: yesAdvances in Civil Engineering, 2019
Iced conductor motion is induced by the aerodynamic instability of these conductors. The unsteady aerodynamic characteristics are different from the steady aerodynamic characteristics.
Mengqi Cai   +3 more
doaj   +1 more source

Data Mining-Based Design Space Exploration and Optimization for Tandem Airfoils

open access: yesInternational Journal of Aerospace Engineering, 2023
The joined-wing configuration has great technical appeal for the development of next-generation SensorCraft. Research based on the simplified tandem airfoil system can improve understanding of the joined-wing configuration’s aerodynamic characteristics ...
Yayun Shi   +4 more
doaj   +1 more source

Effect of turbulence on aerodynamic coefficient of cylinder

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract This paper was concerned with the wind flow around a circular cylinder with various wind velocities (ν) and turbulence intensities (I). Wind pressures were measured through wind tunnel tests, by which drag coefficient (CD ) and lift coefficient (C L) were calculated.
Jianfeng Yao, Guohui Shen, Wenjuan Lou
openaire   +1 more source

Numerical investigation on aerodynamic characteristics of a high-speed train travelling through a bridge–tunnel section under non-uniform airflows caused by mountain terrain effect

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
A thorough understanding of aerodynamic characteristics of a high-speed train in a bridge–tunnel section is of extremely importance to ensure the vehicle safety of driving. This study presents a numerical investigation on aerodynamic characteristics of a
Hao Hu   +4 more
doaj   +1 more source

Identification of aerodynamic coefficients of a projectile and reconstruction of its trajectory from partial flight data

open access: yesComputer Assisted Methods in Engineering and Science, 2017
Several optimization techniques are proposed both to identify the aerodynamic coefficients and to reconstruct the trajectory of a fin-stabilized projectile from partial flight data.
Vincent Condaminet   +5 more
doaj   +1 more source

Aerodynamic interference between two boxes in parallel arrangement and flow field characteristics around the girder

open access: yesAdvances in Bridge Engineering, 2022
Aerodynamic characteristics of long-span bridges with box girders have been investigated widely, and this paper presents a study on a cable-stayed bridge with two box girders in parallel arrangement.
Shuwen Fan   +3 more
doaj   +1 more source

Large eddy simulation on wind-induced interference effects of staggered chamfered square cylinders

open access: yesScientific Reports, 2023
Chamfered corners in buildings are the main means to reduce the control effect of wind load on the structure, and the interference effect of chamfered buildings cannot be ignored.
Wenlong Cao   +5 more
doaj   +1 more source

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