Results 21 to 30 of about 48,655 (224)

The spray characteristic of gas-liquid coaxial swirl injector by experiment

MATEC Web of Conferences, 2017
Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD), axial velocity and size data rate were measured under different gas injecting pressure ...
Chen Chen, Zhihui Yan, Yang Yang, Hongli Gao, Shunhua Yang, Lei Zhang   +5 more
doaj   +1 more source

Parametric study of flow and heat transfer characteristics in a regenerative cooling channel with crescent-shaped ribs under non-uniform heat flux

Results in Engineering
Regenerative cooling technology is key for scramjets to cope with extreme thermal loads during operation. Non-uniform heat flux, as an important feature of the propulsive combustion system, poses a serious challenge to the optimization of regenerative ...
Zechuan Yi, Taiyu Wang, Yifeng Yao, Peibo Li, Mingbo Sun, Jikai Chen, Bin An, Changhai Liang, Jiaoru Wang, Menglei Li, Yu Xie, Decong Zhang, Kai Yang, Qi Liu   +13 more
doaj   +1 more source

A Review of Aerodynamic Design for Wide-Speed Range Waverider Vehicle [PDF]

Hangkong bingqi
As a hypersonic aerodynamic configuration that can break through the lift-drag ratio barrier, waverider configuration is an important candidate for wide-speed reusable aircraft. Therefore.
Wang Chenhang, Jin Liang, Zhao Zhentao, Xie Zan, Huang Wei
doaj   +1 more source

Variant wing scheme and aerodynamic characteristics analysis of hypersonic vehicle

Hangkong gongcheng jinzhan, 2023
The variant aircraft can change its shape to adapt to different flight states and improve aerodynamic properties of aircraft. Aiming at a new hypersonic vehicle concept machine, the applicability of the wing variable sweep design on this hypersonic ...
ZHANG Xin, JI Hongli, ZHOU Danjie, LIU Yi, HE Chengjun, QIU Jinhao   +5 more
doaj   +1 more source

Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics

Advanced Materials, EarlyView.
Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova, Minjuan Li, Osamah Alharbi, Yeonsu Jeong, Bin Han, Lei Gao, Mischa Bonn, Mario Lanza, Sheng Yang, Antonio Gaetano Ricciardulli, Paolo Samorì   +10 more
wiley   +1 more source

A Robust Control Method for the Trajectory Tracking of Hypersonic Unmanned Flight Vehicles Based on Model Predictive Control

Drones
Hypersonic unmanned flight vehicles have complex dynamic characteristics, such as nonlinearity, strong coupling, multiple constraints, and uncertainty.
Haixia Ding, Bowen Xu, Weiqi Yang, Yunfan Zhou, Xianyu Wu   +4 more
doaj   +1 more source

The Effect of Fuel Injection on the Combustion Characteristics of Gas-Solid Two-Phase Gas [PDF]

Hangkong bingqi
Fuel injection significantly affects the combustion characteristics of gas-solid two-phase gas in solid rocket scramjet. The effects of fuel equivalent ratio and fuel injection port arrangement on the combustion characteristics of gas-solid two-phase gas
Zhao Libei, Ma Likun, Xia Zhixun, Feng Yunchao, Chen Binbin, Liu Yandong
doaj   +1 more source

Wavelet-based Adaptive Techniques Applied to Turbulent Hypersonic Scramjet Intake Flows

, 2013
The simulation of hypersonic flows is computationally demanding due to large gradients of the flow variables caused by strong shock waves and thick boundary or shear layers.
Behr, Marek, Bosco, Arianna, Frauholz, Sarah, Müller, Siegfried, Reinartz, Birgit U.   +4 more
core   +1 more source

Light modulation in phoxonic nanocavities [PDF]

, 2011
We report on the occurrence of strong nonlinear acousto-optic interactions in phoxonic structures, that support, simultaneously, acoustic and optical localized resonant modes, under the influence of acoustic losses.
Bonello, Bernard, Djafari Rouhani, Bahram, Laude, Vincent, Papanikolaou, Nikos, Psarobas, IE, Stefanou, Nikos   +5 more
core   +1 more source

Strong Lateral Confinement of Hydrophilic Silica Nanoparticles on Mg‐Al Layered Double Hydroxides Nanoflakes for Enhanced Thermal Properties

Advanced Materials Interfaces, EarlyView.
A nanostructured, naturally flame‐retardant, and non‐toxic inorganic composite is introduced, which is laterally associated with silica nanoparticles to induce the restacking of the LDH lamella structure, thereby serving as an efficient thermal insulator.
Gayani Pathiraja, Jeffrey Ayerh, Abhijeet Mali, Md Arifur Rahman Khan, Anna Sheets, Shobha Mantripragada, Sherine O. Obare, Tetyana Ignatova   +7 more
wiley   +1 more source