Results 11 to 20 of about 28,434 (205)

Ablation-Immune Thermal Armor Via Microstructural-Compatibility Design for Extreme Thermal Conditions. [PDF]

open access: yesAdv Sci (Weinh)
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Ou H   +6 more
europepmc   +2 more sources

Materials design for hypersonics. [PDF]

open access: yesNat 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   +8 more
europepmc   +5 more sources

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High-Entropy Alloys. [PDF]

open access: yesAdv Sci (Weinh)
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Zhang W, Yan D, Zhang Y, Li Z.
europepmc   +2 more sources

Hypersonic control effectiveness

open access: yes, 1995
The present study analyses the effects of a number of geometric parameters on the performance of a trailing edge control flap on a hypersonic body. The tests were conducted in a gun tunnel at Mach 8.2 and Mach 12.3.
Kumar, D.
core   +7 more sources

Hypersonic flow control using magneto-hydrodynamics [PDF]

open access: yes, 2008
The focus of the present work is on the use of magneto hydrodynamics as a flow control device for supersonic and hypersonic vehicles. A three dimensional parabolized Navier Stokes solver was developed to take into account the effects of magnetic ...
Bennett, J. S.
core   +7 more sources

A case study on the aerodynamic heating of a hypersonic vehicle [PDF]

open access: yes, 2012
A Parabolised Navier-Stokes (PNS) flow solver is used to predict the aerodynamic heating on the surface of a hypersonic vehicle. This case study highlights some of the main heat flux sensitivies to various conditions for a full-scale vehicle and ...
MacManus, David G.   +4 more
core   +7 more sources

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

open access: yesApplied 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   +7 more
doaj   +1 more source

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

open access: yesAIP 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   +6 more
doaj   +1 more source

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

open access: yesHangkong 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

Research on Development of Hypersonic Defense Weapons Abroad [PDF]

open access: yesHangkong 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

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