Results 1 to 10 of about 1,519 (231)

Interception of a hypersonic vehicle by low-speed interceptors: novel perspectives and cost optimisation [PDF]

open access: goldBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The conditions for accurately intercepting hypersonic vehicles by low-speed interceptors in the terminal guidance process are examined, considering the general form of a guidance scheme.
Shuangxi Liu   +5 more
doaj   +3 more sources

Gas Kinetic Scheme Coupled with High-Speed Modifications for Hypersonic Transition Flow Simulations [PDF]

open access: yesEntropy
The issue of hypersonic boundary layer transition prediction is a critical aerodynamic concern that must be addressed during the aerodynamic design process of high-speed vehicles. In this context, we propose an advanced mesoscopic method that couples the
Chengrui Li   +5 more
doaj   +2 more sources

Bow shock instability at hypersonic speed

open access: hybridPhysical Review Fluids
This paper is associated with a poster winner of a 2024 American Physical Society's Division of Fluid Dynamics (DFD) Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available online at the Gallery of Fluid Motion,
Adrián Antón-Álvarez   +1 more
openalex   +2 more sources

A Novel Hypersonic Target Trajectory Estimation Method Based on Long Short-Term Memory and a Multi-Head Attention Mechanism [PDF]

open access: yesEntropy
To address the complex maneuvering characteristics of hypersonic targets in adjacent space, this paper proposes an LSTM trajectory estimation method combined with the attention mechanism and optimizes the model from the information-theoretic perspective.
Yue Xu   +3 more
doaj   +2 more sources

Experimental study of nose-tip bluntness effects on hypersonic boundary-layer transition in a shock tunnel [PDF]

open access: yesScientific Reports
This study experimentally investigates the effects of nose-tip bluntness on boundary-layer transition over a $$7^\circ$$ 7 ∘ half-angle cone at Mach 6.76, using the Seoul National University Hypersonic Shock Tunnel.
Jinhwi Kim   +4 more
doaj   +2 more sources

Aerodynamic Heating at Hypersonic Speed

open access: hybrid, 2011
At designing and modernization of a reentry space vehicle it is required accurate and reliable data on the flow field, aerodynamic characteristics, heat transfer processes. Taking into account the wide range of flow conditions, realized at hypersonic flight of the vehicle in the atmosphere, it leads to the need to incorporate in employed theoretical ...
Belyakov Andrey
openalex   +4 more sources

Strip blowing from a wedge at hypersonic speeds [PDF]

open access: green29th Aerospace Sciences Meeting, 1995
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/76964/1/AIAA-1991-32-677 ...
A. F. Messiter, M. D. Matarrese
openalex   +2 more sources

Research on Head Pursuit Interception Strategy for Hypersonic Target

open access: yesApplied Sciences, 2023
In the wake of countries competing to develop high-efficiency offensive weapons, high-precision systems have also developed. Due to the high speed and high maneuverability of hypersonic targets, it is always difficult to meet the accuracy and rapidity ...
Zhihan Li, Ying Nan
doaj   +1 more source

Intelligent Pursuit–Evasion Game Based on Deep Reinforcement Learning for Hypersonic Vehicles

open access: yesAerospace, 2023
As defense technology develops, it is essential to study the pursuit–evasion (PE) game problem in hypersonic vehicles, especially in the situation where a head-on scenario is created. Under a head-on situation, the hypersonic vehicle’s speed advantage is
Mengjing Gao   +4 more
doaj   +1 more source

Influence of Ablation Deformation on Aero-Optical Effects in Hypersonic Vehicles

open access: yesAerospace, 2023
High-speed turbulence is generated when hypersonic vehicles fly in the atmosphere, which can create aero-optical effects and interfere with optical navigation and guidance systems. At the same time, the front end and optical window of hypersonic vehicles
Bo Yang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy