Results 11 to 20 of about 61,445 (265)

Materials design for hypersonics. [PDF]

Nat Commun
AbstractHypersonic vehicles must withstand extreme conditions during flights that exceed five times the speed of sound. These systems have the potential to facilitate rapid access to space, bolster defense capabilities, and create a new paradigm for transcontinental earth-to-earth travel.
Peters AB, Zhang D, Chen S, Ott C, Oses C, Curtarolo S, McCue I, Pollock TM, Eswarappa Prameela S.   +8 more
europepmc   +5 more sources

Influence of injection angles on flow structures and mixing properties in a supersonic combustor at low Mach supersonic crossflow [PDF]

Scientific Reports
The fuel-air mixing is of paramount importance in hypersonic air-breathing vehicles, and its performance is closely related to the fuel injection angle.
Lin Zhang, Jianhan Liang, Yi Wang, Wei Zhao, Leichao Yang   +4 more
doaj   +2 more sources

A Real-Time Trajectory Optimization Method for Hypersonic Vehicles Based on a Deep Neural Network [PDF]

Aerospace, 2022
Considering the high-efficient trajectory planning requirements for hypersonic vehicles, this paper proposes a real-time trajectory optimization method based on a deep neural network.
Jianying Wang, Yuanpei Wu, Ming Liu, Ming–Hsuan Yang, Haizhao Liang   +4 more
openalex   +2 more sources

A Heterogeneous Parallel Algorithm for Euler-Lagrange Simulations of Liquid in Supersonic Flow

Applied Sciences, 2023
In spite of its prevalent usage for simulating the full-field process of the two-phase flow, the Euler–Lagrange method suffers from a heavy computing burden.
Xu Liu, Mingbo Sun, Hongbo Wang, Peibo Li, Chao Wang, Guoyan Zhao, Yixin Yang, Dapeng Xiong   +7 more
doaj   +1 more source

Fuzzy Optimal Tracking Control of Hypersonic Flight Vehicles via Single-Network Adaptive Critic Design

IEEE transactions on fuzzy systems, 2022
Optimal performance is extremely important for hypersonic flight control. Different from most existing methodologies, which only consider basic control performance including stability, robustness, and transient performance, this article deals with the ...
Xiangwei Bu, Qiang Qi
semanticscholar   +1 more source

Research on Foreign Air-to-Ground Hypersonic Missile Development in 2022 [PDF]

Hangkong bingqi, 2023
This paper summarizes and studies the development trends of foreign air-to-ground hypersonic missiles in 2022, including Kh-47M Kinzhal hypersonic missie, Kh-95 long-range hypersonic missile, Ostrota hypersonic missile, Larchinka-MD hypersonic weapon ...
Ren Chunyan, Liu Ying, Zhang Qian, Zhou Jiangyang, Shi Danya
doaj   +1 more source

Direct numerical simulation of supersonic and hypersonic turbulent boundary layers at moderate-high Reynolds numbers and isothermal wall condition

Journal of Fluid Mechanics, 2022
We study the structure of high-speed zero-pressure-gradient turbulent boundary layers up to friction Reynolds number $Re_{\tau } \approx 2000$ using direct numerical simulation of the Navier–Stokes equations.
Michele Cogo, F. Salvadore, F. Picano, M. Bernardini   +3 more
semanticscholar   +1 more source

Research on Development of Hypersonic Defense Weapons Abroad [PDF]

Hangkong bingqi, 2023
The US pays great attention to and leads the development of hypersonic weapon defense technology in the world, vigorously promots hypersonic defense programs such as Hypersonic Defense Weapon Concept Definition, Hypersonic Defense Component Technology ...
Zhao Hongyan, Xie Bangrong
doaj   +1 more source

Study on the application of artificial neural network-based flamelet/progress variable model in supersonic combustion

AIP Advances, 2023
The flamelet model has the characteristics of high efficiency and physical intuition and has excellent application prospects in supersonic turbulent combustion simulation.
Chengyue Lian, Tao Tang, Hongbo Wang, Jiangfei Yu, Mingbo Sun, Dapeng Xiong, Yixin Yang   +6 more
doaj   +1 more source

Research on Hypersonic Vehicle Interception Conditions from a Small Velocity Ratio Perspective [PDF]

Hangkong bingqi, 2023
To address the problem of hypersonic vehicle interception, taking the air-breathing hypersonic vehicle as the target of interception, this paper employs the concept of engagement geometry to theoretically provide the necessary conditions for the ...
Liu Shuangxi, Yan Binbin, Zhang Tong, Zhang Xu, Yan Jie
doaj   +1 more source