Results 31 to 40 of about 21,342 (292)

Future directions of supersonic combustion research - Air Force/NASA workshop on supersonic combustion [PDF]

35th Aerospace Sciences Meeting and Exhibit, 1997
The Air Force Office of Scientific Research, the Air Force Wright Laboratory Aero Propulsion and Power Directorate, and the NASA Langley Research Center held a joint supersonic combustion workshop on 14-16 May 1996. The intent of this meeting was to: (1) examine the current state-of-the-art in hydrocarbon and/or hydrogen fueled scramjet research; (2 ...
Julian Tishkoff, J. Drummond, T. Edwards, A. Nejad, Julian Tishkoff, J. Drummond, T. Edwards, A. Nejad   +7 more
openaire   +1 more source

A Systematic Experimental and Computational Investigation of a Class of Contoured Wall Fuel Injectors [PDF]

, 1992
The performance of a particular class of fuel injectors for scramjet engine applications is addressed. The contoured wall injectors were aimed at augmenting mixing through axial vorticity production arising from interaction of the fueVair interface ...
Marble, Frank E., Waitz, Ian A., Zukoski, Edward E.   +2 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Stabilization of combustion front in supersonic flow using streamer’s discharge

MATEC Web of Conferences, 2018
Thermodynamic analysis shows that for flights with velocities exceeding six sound velocities, it is required to burn fuel not in a subsonic but in a supersonic flow.
Bulat Pavel, Grachev Lev, Esakov Igor, Upyrev Vladimir   +3 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Solvent Co‐Intercalation Enabled Ca Storage in MoS2 for Ca‐Ion Batteries

Advanced Functional Materials, EarlyView.
Regulating electrolyte solvation levels enables otherwise non‐intercalatable Ca2+ ions to reversibly co‐intercalate into molybdenum disulfide (MoS2) as ether‐solvated species. The intercalation reversibility is strongly governed by solvent chain length, as demonstrated using diethylene glycol dimethyl ether (G2) and tetraethylene glycol dimethyl ether (
Yudong Luo, Matthias Golomb, Yupei Han, Pan He, Neubi Xavier, Wanjun Ren, Yi Lu, Matthew Hopper, Henry R. Tinker, Qiong Cai, Yang Xu   +10 more
wiley   +1 more source

Progress on numerical simulation of thermal protection/friction reduction using supersonic fuel film with boundary layer combustion: a review

Advances in Aerodynamics
Organizing supersonic fuel films near the wall offers a promising solution to simultaneously reduce friction and thermal loads in the internal flow passages of hypersonic vehicles. This paper presents a thorough review of the supersonic fuel film cooling
Jianfei Wei, Silong Zhang, Jingying Zuo, Xin Li, Wen Bao, Naigang Cui   +5 more
doaj   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

Modeling of Supersonic Combustion Systems for Sustained Hypersonic Flight

Energies, 2017
Through Computational Fluid Dynamics and validation, an optimal scramjet combustor has been designed based on twin-strut Hydrogen injection to sustain flight at a desired speed of Mach 8.
Stephen M. Neill, Apostolos Pesyridis
doaj   +1 more source

Numerical simulation of ethylene combustion in supersonic air flow [PDF]

Компьютерные исследования и моделирование, 2017
In the present paper, we discuss the possibility of a simplified three-dimensional unsteady simulation of plasma-assisted combustion of gaseous fuel in a supersonic airflow. Simulation was performed by using FlowVision CFD software.
Alexandr A. Firsov, Dmitry A. Yarantsev, Sergey B. Leonov, Vladimir V. Ivanov   +3 more
doaj   +1 more source