Results 71 to 80 of about 65,352 (268)
Numerical Structure Analysis of Regular Hydrogen-Oxygen Detonations [PDF]
, 2003 Large-scale numerical simulations have been carried out to analyze the internal wave structure of a regular oscillating low-pressure H2 : O2 : Ar-Chapman-Jouguet detonation in two and three space-dimensions.
Deiterding, Ralf
core
Defence Science Journal, 1981 The problem of imploding detonation waves propagating through a gas with initial density, is studied. It is shown that the consideration of varying initial density affects the problem considerably incomparison to a uniform gas at rest. An analytical expression for the pressure distribution in the neighbourhood of the centre of symmetry has been found.
Verma, B. G., Singh, J. B.
openaire +2 more sources
Text Mining of CVD Synthesis Recipes for 2D Materials
Advanced Materials, EarlyView.A lightweight, multi‐stage natural language processing framework utilizes fine‐tuned BERT models to extract chemical vapor deposition synthesis knowledge from diverse 2D materials literature. The domain‐adapted workflow integrates classification, named entity recognition, and extractive question answering to systematically retrieve categorical and ...
Ang‐Yu Lu +11 more
wiley +1 more source
Detonative Propagation and Accelerative Expansion of the Crab Nebula Shock Front
, 2011 The accelerative expansion of the Crab nebula's outer envelope is a mystery in dynamics as a conventional expanding blast wave decelerates when bumping into the surrounding interstellar medium.
Gao, Yang, Law, Chung K.
core +1 more source
Advanced Materials, EarlyView.A flexible and lightweight acoustic metamaterial composed of air cavities encased in polydimethylsiloxane (PDMS) is introduced to enhance ultrasound power transfer. The metamaterial leverages the strong reflectivity of air cavity boundaries to concentrate incoming ultrasound, thereby improving the performance of piezoelectric energy harvesters ...
Hyung‐Suk Kwon +4 more
wiley +1 more source
Superionic Amorphous Li2ZrCl6 and Li2HfCl6
Advanced Materials, EarlyView.Amorphous Li2HfCl6 and L2ZrCl6 are shown to be promising solid‐state electrolytes with predicted ionic conductivities >20 mS·cm−1. Molecular dynamics simulations with machine‐learning force fields reveal that anion vibrations and flexible MCl6 octahedra soften the Li coordination cage and enhance mobility. Correlation between Li‐ion diffusivity and the
Shukai Yao, De‐en Jiang
wiley +1 more source
Development of detonation reaction engine [PDF]
, 1968 Reaction engine operates on the principle of a controlled condensed detonation. In this engine the gas products that are expelled from the engine to produce thrust are generated by the condensed detonation reaction. The engine is constructed of two basic
Lange, O. H., Stein, R. J., Tubbs, H. E.
core +1 more source
Humid‐Air Condensation Heat Transfer on Hierarchical Structured Superhydrophobic Graphite Composites
Advanced Materials Interfaces, EarlyView.Humid‐air condensation on graphite composites shows that making a surface superhydrophobic is not sufficient to enhance heat transfer. A hierarchical CuO/lauric‐acid coating yields spherical droplets but promotes Wenzel‐type pinning and adds effective thermal resistance under operation.
Raphael Raab +7 more
wiley +1 more source
Convective Flux Analysis on the Instability of One-Dimensional Detonation
AerospaceOne-dimensional numerical simulations using the Euler equations and irreversible one-step Arrhenius kinetics are conducted to study the instability mechanism of a one-dimensional gaseous detonation.
Yunfeng Liu
doaj +1 more source
Numerical method to simulate detonative combustion of hydrogen-air mixture in a containment
Engineering Applications of Computational Fluid Mechanics, 2019 During an accident accompanied by core damage in a water-cooled nuclear reactor, a large amount of hydrogen is generated by fuel clad oxidation and released into the reactor containment.
D. Kim, J. Kim
doaj +1 more source