Results 61 to 70 of about 50,714 (273)
Triple flame structure and diffusion flame stabilization [PDF]
, 1994 The stabilization of diffusion ñames is studied using asymptotic techniques and numerical tools. The configuration studied corresponda to parallel streams of cold oxidizer and fuel initially separated by a splitter píate.
Liñán Martínez, Amable +4 more
core +2 more sources
Dynamics of Laterally Propagating Flames in X-ray Bursts. I. Burning Front Structure [PDF]
, 2019 We investigate the structure of laterally-propagating flames through the highly-stratified burning layer in an X-ray burst. Two-dimensional hydrodynamics simulations of flame propagation are performed through a rotating plane-parallel atmosphere ...
Cavecchi, Yuri +5 more
core +2 more sources
Instantaneous flame-stabilization velocities in lifted-jet diffusion flames
Combustion and Flame, 1997 Liftoff height and velocity measurements are presented for turbulent, lifted methane and ethylene flames. A range of Reynolds numbers from 3800 to 22,000 is investigated, and the effect of coflow velocity is examined. The mean liftoff height is shown to increase with jet-exit and coflow velocity, while the rms fluctuation about the mean increases with ...
L. Muñiz, M.G. Mungal
openaire +1 more source
Effect of pressure on the characteristics of lifted flames [PDF]
Proceedings of the Combustion Institute, 2019 Abstract The effects of pressure on the characteristics of lifted flames in a coflow with propane fuel were investigated experimentally in a pressure chamber. Changing the pressure influenced the density, reaction kinetics, and flame propagation speed. The pressure range tested was P = 0.5–5.5 atm.
Seunghwan Bang +2 more
openaire +2 more sources
Electronic jelly: Engineering the mechanics of hydrogels for flexible electronics
FlexMat, EarlyView.By unifying mechanical reinforcement strategies—double networks, structural ordering, and dynamic interactions—this review demonstrates how engineered hydrogels can transcend their fragility to achieve the strength, toughness, and reliability required for flexible electronics, including wearable sensors, energy devices, and soft robotic systems ...
Tianfu Zheng +2 more
wiley +1 more source
Case Studies in Thermal Engineering, 2022 Adequate understanding of the combustion and heat transfer characteristics are considered key points for the development of methane engines. In this paper, a methane combustion chamber with 7-elements is simulated under RANS frame with EDC combustion ...
Changguo Liu, Silong Zhang, Daren Yu
doaj +1 more source
Polymer Composites, EarlyView.Graphical abstract illustrating the experimental design and key findings of the study. ABSTRACT Basalt fiber‐reinforced polymer (BFRP) composites are gaining attention as sustainable alternatives to conventional fiber‐reinforced polymers owing to their favorable mechanical properties and environmental advantages.
Abdulrahman Adeiza Musa +7 more
wiley +1 more source
International Journal of Aerospace EngineeringLarge eddy simulation (LES) of a turbulent lifted ethylene/nitrogen jet flame in highly-heated coflow is presented. Turbulent combustion modeling is performed by using the flamelet generated manifold (FGM) approach and presumed probability density ...
Zhengxin Lai, Wenyan Song, Qiuyin Wang
doaj +1 more source
Lifted Partially Premixed Flames in Microgravity [PDF]
42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004 Lifted Double and Triple flames are established in the UIC-NASA Partially Premixed microgravity rig. The flames examined in this paper are established above a coannular burner because its axisymmetric geometry allows for future implementation of other non-intrusive optical diagnostic techniques easily.
Andrew Lock +5 more
openaire +1 more source
Do We Really Know Why Carbon Nanotubes Grow?
Small, EarlyView.The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi +6 more
wiley +1 more source