Results 21 to 30 of about 80,594 (224)
Developing and applying Mach 4.5 nozzle in hypersonic wind tunnel
Xibei Gongye Daxue Xuebao, 2021 Mach 4.5 tests in a conventional trans-supersonic wind tunnel are often accompanied by the air liquefaction phenomenon, resulting in the low reliability of test data.
HUANG Ju +4 more
doaj +1 more source
Hypersonic flutter and flutter suppression system of a wind tunnel model
Chinese Journal of Aeronautics, 2019 Chuanwei Xuan +4 more
semanticscholar +2 more sources
Study on Oil-Film Interferometry Measurement Technique of Hypersonic Boundary Layer Transition [PDF]
Xibei Gongye Daxue Xuebao, 2018 Prediction of boundary layer transition is important for the design of hypersonic aircrafts. The study of boundary layer transition of hypersonic flow around a flat plate using oil-film interferometry was investigated at Φ500mm traditional hypersonic ...
doaj +1 more source
Hypersonic aerodynamic force balance using temperature compensated semiconductor strain gauges
Advances in Aerodynamics, 2023 Metal foil strain gauges remain the state-of-the-art transducers for wind tunnel balances. While strain gauge technology is very mature, piezoresistive semiconductor sensors offer alternatives that are worth exploring to assess their unique benefits ...
Huacheng Qiu +5 more
doaj +1 more source
气体物理, 2023 With some silk threads being planted on the shoulder of the inlet and the silk-thread flow visualization method being used, the starting characteristics of an inward-turning inlet were researched in hypersonic cold-flow blow-down wind tunnel experiments.
An-yuan YU +5 more
doaj +1 more source
Polymer‐Derived High‐Temperature Nonoxide Materials: A Review
Advanced Engineering Materials, Volume 25, Issue 9, May 2023., 2023 This review focuses on an attractive class of polymer‐derived high‐temperature nonoxide materials. The important parameters related to polycarbosilane pyrolysis are explained. Also, polymer‐derived solid‐solution carbides, transition metal carbides, transition metal borides, nitrides, and high‐temperature nonoxide composites are examined.
Yue Zhou, Kathy Lu
wiley +1 more source
International Journal of Ceramic Engineering &Science, Volume 5, Issue 2, March 2023., 2023 Abstract Emissivity as a function of wavelength, direction, and temperature correlates to a material's efficiency in radiating thermal energy. Knowledge of emissivity is essential for designing and developing radiation‐cooled thermal protective systems for hypersonic applications.
Abdullah A. Saad +2 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 This study investigated the thermal protection performance of an active jet thermal protection system (PRsAJ‐TPS) based on a new jet design parameter PRs for hypersonic flight vehicles (HFVs). The new parameter PRs is defined as the relationship between the jet flow total pressure and the free flow total pressure behind the outer bow shock.
Songyan Tian +3 more
wiley +1 more source
Research Progress of hypersonic boundary layer transition control experiments
Advances in Aerodynamics, 2022 Hypersonic boundary layer transition is a hot yet challenging problem restricting the development and breakthrough of hypersonic aerodynamics. In recent years, despite great progress made by wind tunnel experiment, transition mechanism and transition ...
He-sen Yang +6 more
doaj +1 more source
International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 This paper is aimed at investigating the microstructure evolution of resin‐based ablative materials under aerodynamic heating. The microstructure, morphology, material density, and thermophysical parameters at different positions of the material after aerodynamic heating were deeply studied.
Junjie Gao +4 more
wiley +1 more source