Results 71 to 80 of about 21,342 (292)

Chemical timescale analysis of the Partially Stirred Reactor model for a hydrogen-fuelled scramjet

open access: yesResults in Engineering
Scramjet engines offer a promising option for powering hypersonic vehicles, although the unique characteristics of supersonic combustion present numerous challenges.
Alessandro Piscopo   +3 more
doaj   +1 more source

Augmentor emissions reduction technology program [PDF]

open access: yes
Technology to reduce pollutant emissions from duct-burner-type augmentors for use on advanced supersonic cruise aircraft was investigated. Test configurations, representing variations of two duct-burner design concepts, were tested in a rectangular ...
Bahr, D. W.   +2 more
core   +1 more source

Flame Instability and Transition to Detonation in Supersonic Reactive Flows

open access: yes, 2017
Multidimensional numerical simulations of a homogeneous, chemically reactive gas were used to study ignition, flame stability, and deflagration-to-detonation transition (DDT) in a supersonic combustor.
Center   +4 more
core   +1 more source

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

open access: yesEcoEnergy, EarlyView.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan   +3 more
wiley   +1 more source

NASA's hypersonic propulsion program: History and direction [PDF]

open access: yes
Research into hypersonic propulsion; i.e., supersonic combustion, was seriously initiated at the Langley Research Center in the 1960's with the Hypersonic Research Engine (HRE) project.
Wander, Steve
core   +1 more source

Circular and Bio‐Sourced Polymers for Energy Applications: Natural Feedstocks, Recycling, and Upcycling Routes

open access: yesEcoEnergy, EarlyView.
This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha   +3 more
wiley   +1 more source

Numerical simulation and parameter analysis of kerosene/oxygen combustion flame in a supersonic spray gun

open access: yesCase Studies in Thermal Engineering
The characteristics of supersonic flame, such as temperature and impact velocity, are crucial for assessing the performance of coating materials in a thermal barrier coatings (TBCs) service environment simulation device.
Zixin Song   +6 more
doaj   +1 more source

Description of a computer program to calculate reacting supersonic internal flow fields with shock waves using viscous characteristics: Program manual and sample calculations [PDF]

open access: yes
A computer program for calculating internal supersonic flow fields with chemical reactions and shock waves typical of supersonic combustion chambers with either wall or mid-stream injectors is described.
Agnone, A. M., Cavalleri, R. J.
core   +1 more source

Combustion and Propulsion Research [PDF]

open access: yes, 1963
Combustion chemistry is one of the oldest branches of chemical science. Among its pioneers must be counted Lavoisier, Bunsen, and others whose names belong among those of the founders of chemical science.
Penner, S. S.
core   +1 more source

Flame‐Retardant Bio‐Based Thermo‐Flexible Phase‐Change Composites with Antivibration and Low‐Contact Resistance for Advanced Battery Thermal Management

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Flame‐retardant bio‐based thermo‐flexible phase‐change composites for advanced battery thermal management. Batteries face critical challenges in thermal management, including overheating risks, poor interfacial contact, and mechanical vibration–induced performance attenuation.
Shichao Feng   +7 more
wiley   +1 more source

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