Results 61 to 70 of about 8,165 (229)

Combustion synthesis of ultra‐high temperature ceramics: Review

open access: yesInternational Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
Abstract Novel and future‐oriented aerospace, energy, transportation, and other industrial technologies require materials capable of operating at temperatures above 2000°C. Ultra‐high temperature ceramic materials (UHTCs), based on carbides, borides, carbonitrides, and nitrides of transition metals—many with melting points exceeding 3000°C—possess the ...
Alexander S. Mukasyan   +1 more
wiley   +1 more source

Micro-Ramps for Hypersonic Flow Control

open access: yesMicromachines, 2012
Shock/boundary layer interaction (SBLI) is an undesirable phenomenon, occurring in high-speed propulsion systems. The conventional method to manipulate and control SBLI is using a bleed system that involves the removal of a certain amount of mass of the ...
Konstantinos Kontis   +3 more
doaj   +1 more source

Starting Process of a Double-Throat Ludwieg Tube Tunnel and the Extension of Its Effective Running Time

open access: yes气体物理
The Ludwieg tube wind tunnel serves as a crucial testing ground for fundamental studies of hypersonic aerodynamics. However, the quick-opening valve-started hypersonic Ludwieg tube wind tunnel has been affected by the quick-opening valve for a long time,
Chuangchuang LI   +3 more
doaj   +1 more source

A review on the development of large-scale detonation-driven shock tunnels and the application in hypersonic flow tests [PDF]

open access: yesInternational Journal of Fluid Engineering
With the boom in deep space exploration by China since the beginning of the 21st century, the demand for high-enthalpy hypersonic shock tunnels has continued to increase.
Zongmin Hu, Wenhao Wang, Zijian Zhang
doaj   +1 more source

Black-box optimization methods for hypersonic flow problems [PDF]

open access: yesInternational Journal of Fluid Engineering
This review examines the application of black-box optimization methods to hypersonic flow problems, with a particular emphasis on scenarios where computational fluid dynamics (CFD) simulations function as opaque, nontransparent models.
Davood Hoseinzade   +2 more
doaj   +1 more source

Study on the influence of the adiabatic index on the characteristics of a plane hypersonic input device of external compression

open access: yesАвіаційно-космічна техніка та технологія
This study presents the main results of research on the assessment of the change in the influence of the adiabatic index on the total pressure conservation coefficient and the length of the direct compression jump in the supersonic part of the external ...
Artem Khorokhordin   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy