Results 21 to 30 of about 27,081 (222)

Self-Start Characteristics of Hypersonic Inlet When Multiple Unstart Modes Exist

Applied Sciences, 2023
Intense shock boundary-layer interaction may lead to multiple unstart modes existing in a hypersonic inlet. Thus, self-start problems become complex and cannot be explained using the classical double-solution theory of air inlet.
Xiao Tang, Bing Xiong, Xiaoqiang Fan, Liang Wang   +3 more
doaj   +1 more source

Investigation of Flow Control for the Hypersonic Inlets via Counter Flow

International Journal of Aerospace Engineering, 2015
Experimental results show that there exist two flow fields in the hypersonic inlets when the forebody waves interact with the lip boundary, which is similar to the shock reflection ion hysteresis phenomenon.
Xiaoqiang Fan, Yuan Tao
doaj   +1 more source

Modeling and analysis for dynamical Doppler shifts on terahertz communication signals propagating in inhomogeneous hypersonic plasma sheath [PDF]

AIP Advances
Previous studies have shown that terahertz (THz) signals could penetrate hypersonic plasma sheaths. Thus, it is considered to be a potential solution to the “blackout” problem.
Xiangmeng Lin, Junyi Zhang, Kai Yuan, Ziyang Zhao, Rongxin Tang   +4 more
doaj   +1 more source

Experimental Study of Single Expansion Ramp Nozzle Performance Using Pitot Pressure and Static Pressure Measurements

International Journal of Aerospace Engineering, 2019
In order to overcome the drag at hypersonic speed, hypersonic flight vehicles require a high level of integration between the airframe and the propulsion system.
Sergio Nicolas Pachón Laitón, João Felipe de Araujo Martos, Israel da Silveira Rego, George Santos Marinho, Paulo Gilberto de Paula Toro   +4 more
doaj   +1 more source

Fluid-Thermal Interaction Simulation of a Hypersonic Aircraft Optical Dome

Energies, 2022
Hypersonic aircraft design is an enabling technology. However, many problems are encountered, including the design of the hood. The aircraft optical dome can become heated due to aerodynamic effects. Since the optical dome of a hypersonic aircraft should
Zhiqiang Wang, Anjing Zhang, Jia Pan, Weiguo Lu, Yubiao Sun   +4 more
doaj   +1 more source

A novel graph modeling method for GNN-based hypersonic aircraft flow field reconstruction

Engineering Applications of Computational Fluid Mechanics
Detection of flow fields constitutes a critical role in the advancement and innovation of hypersonic aircraft. Under hypersonic conditions, aircraft aerodynamics manifest a multitude of complex phenomena, including intense turbulence and fluctuations ...
Qiao Li, Xingchen Li, Xiaoqian Chen, Wen Yao   +3 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

Visualization of Shock Wave Phenomenon around a Sharp Cone Model at Hypersonic Mach Number in a Shock Tunnel using High Speed Schlieren Facility

Journal of Applied Fluid Mechanics, 2019
The flow field around a Sharp cone model configuration has been investigated by means of Schlieren facility in hypersonic shock tunnel. The time dependent evolution of flow around a cone of angle 11.38° with base radius of 150mm has been visualized ...
M. Saiprakash, C. Senthil Kumar, G. K. Sunil, S. P. Rampratap, V. Shanmugam, G. Balu   +5 more
doaj   +2 more sources

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

The Development of High Order Numerical Techniques for Reentry Simulation of Hypersonic Spacecraft [PDF]

, 1991
The primary difficulty encountered when simulating hypersonic flow is that the flow normally includes strong nonlinear discontinuities. These discontinuities fall into three broad classes: shocks, slip-lines, and rarefaction waves.
Sanders, Richard
core   +1 more source