Results 21 to 30 of about 151,810 (262)
State-space aerodynamic model reveals high force control authority and predictability in flapping flight [PDF]
Journal of Royal Society Interface, Volume 18, Issue 181 (2021), 2021 Flying animals resort to fast, large-degree-of-freedom motion of flapping wings, a key feature that distinguishes them from rotary or fixed-winged robotic fliers with limited motion of aerodynamic surfaces. However, flapping-wing aerodynamics are characterised by highly unsteady and three-dimensional flows difficult to model or control, and accurate ...
arxiv +1 more source
Xibei Gongye Daxue Xuebao, 2019 The air intake design system of the dorsal intake combined with the S-shaped inlet has been widely used in various combat aircraft due to its good stealth characteristics.
doaj +1 more source
Advances in Aerodynamics, 2020 Properties of wall pressure beneath a transitional hypersonic boundary layer over a 7∘ half-angle blunt cone at angle of attack 6∘ are studied by Direct Numerical Simulation. The wall pressure has two distinct frequency peaks. The low-frequency peak with
Siwei Dong +4 more
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Research on Stall Characteristics of Droop Leading Edge Combined with Internal-blowing Flaps
Hangkong gongcheng jinzhan, 2022 The internally blown flap is of efficient lift enhancement ability,but stall angle of attack drops significantly at a higher jet momentum.In order to improve the stall characteristics,the stall characteristics of the internally blown flap with the droop ...
HE Meng, ZHANG Liu, ZHAO Lei, LI Chang
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A decomposition formula for the wall heat flux of a compressible boundary layer
Advances in Aerodynamics, 2021 Understanding the generation mechanism of the heat flux is essential for the design of hypersonic vehicles. We proposed a novel formula to decompose the heat flux coefficient into the contributions of different terms by integrating the conservative ...
Dong Sun +5 more
doaj +1 more source
Entropy, 2022 Strong viscous interaction and multiple flow regimes exist when vehicles fly at high altitude and high Mach number conditions. The Navier–Stokes(NS) solver is no longer applicable in the above situation.
Dingwu Jiang +3 more
doaj +1 more source
Advances in Aerodynamics, 2019 How to solve the hypersonic aerothermodynamics around large-scale uncontrolled spacecraft during falling disintegrated process from outer space to earth, is the key to resolve the problems of the uncontrolled Tiangong-No.1 spacecraft reentry crash.
Zhi-Hui Li +5 more
doaj +1 more source
Urban heat island: Aerodynamics or imperviousness?
Science Advances, 2019 Vegetation and moisture play the most important roles in controlling daytime urban heat islands and their spatial variability. More than half of the world’s population now live in cities, which are known to be heat islands.
Dan Li +6 more
semanticscholar +1 more source
, 1984 TABLE OF CONTENTS Preface to the Fifth Edition Part 1: Fundamental Principles 1. Aerodynamics: Some Introductory Thoughts 2. Aerodynamics: Some Fundamental Principles and Equations Part 2: Inviscid, Incompressible Flow 3.
J. Anderson
semanticscholar +1 more source
气体物理, 2023 Intake performance is one of the most important factors relating with the forebody-inlet design for air-breathing hypersonic vehicles. The intake performance will be altered due to hypersonic flow field change by the thermal deformation of forebody and ...
Si-yi LI +5 more
doaj +1 more source