Results 21 to 30 of about 1,884 (175)

Spherically expanding flame in silane–hydrogen–nitrous oxide–argon mixtures

Combustion and Flame, 2020
The effect of silane addition on the laminar flame speed (S^0u) of flames propagating in hydrogen–nitrous oxide–argon mixtures has been investigated experimentally for the first time using the spherically expanding flame technique in a constant volume combustion chamber.
Mével, Rémy, Chatelain, Karl, Lapointe, Simon, Lacoste, Deanna, Idir, Mahmoud, Dupré, Gabrielle, Chaumeix, Nabiha   +6 more
openaire   +4 more sources

Numerical study of synthetic spherically expanding flames for optimization of laminar flame speed experiments

Fuel, 2022
Abstract This study presents the performances of four commonly-used extrapolation models, including the linear stretch and linear curvature models, the nonlinear model in expansion form, and the nonlinear quasi-steady model, using synthetic data sets generated over a wide range of conditions.
Zhang, Yakun, Coronel, Stephanie A., Mével, Rémy   +2 more
openaire   +2 more sources

Flame self-interactions in globally stoichiometric spherically expanding flames propagating into fuel droplet-mists

Proceedings of the Combustion Institute, 2021
Abstract A three-dimensional Direct Numerical Simulation (DNS) database of statistically spherical flames propagating into the mono-sized droplet-laden mixtures for an overall (i.e. gaseous + liquid phases) equivalence ratio of unity has been considered to investigate the distribution of flame topologies associated with flame self-interaction events.
Ozel-Erol G, Ahmed U, Chakraborty N
openaire   +2 more sources

Instabilities and soot formation in high pressure explosion flames [PDF]

, 2009
Flame instabilities, cellular structures and soot formed in high pressure, rich, spherically expanding iso-octane-air flames have been studied experimentally using high speed Schlieren cinematography, OH fluorescence, and laser induced incandescence ...
Lockett, R. D.
core  

Insights on the physics of SNIa obtained from their gamma-ray emission

, 2016
Type Ia supernovae are thought to be the outcome of the thermonuclear explosion of a carbon/oxygen white dwarf in a close binary system. Their optical light curve is powered by thermalized gamma-rays produced by the radioactive decay of $^{56}$Ni, the ...
Bravo, E., Isern, J., Jean, P., Knödlseder, J.   +3 more
core   +2 more sources

Thermonuclear .Ia Supernovae from Helium Shell Detonations: Explosion Models and Observables [PDF]

, 2010
During the early evolution of an AM CVn system, helium is accreted onto the surface of a white dwarf under conditions suitable for unstable thermonuclear ignition.
Bildsten, Lars, Kasen, Daniel, Scannapieco, Evan, Shen, Ken J., Weinberg, Nevin N.   +4 more
core   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Effects of inert gas addition on the characteristics of spherically expanding hydrogen-methane-air premixed flames in closed combustion vessels

Journal of Thermal Science and Technology
In the serious accident at Fukushima Daiichi Nuclear Power Station, the presence of steam together with flammable organic compounds affected the hydrogen explosion. To investigate the effects of addition of inert gas, i.e.
Toshiyuki KATSUMI, Atsushi ZEMBA, Makoto KOGISHI, Kohei IWANAGA, Satoshi ABE, Pascal DIÉVART, Nabiha CHAUMEIX, Satoshi KADOWAKI   +7 more
doaj   +1 more source

Cosmic Explosions: Rapporteur Summary of the 10th Maryland Astrophysics Conference [PDF]

, 1999
This meeting covered the range of cosmic explosions from solar flares to gamma-ray bursts. A common theme is the role of rotation and magnetic fields.
Wheeler, J. Craig
core   +2 more sources

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng, Camila B. Tovani, Simona Bianco, Gianni Comandini, Aya Elghajiji, Mina Aleemardani, Roxana Moscalu, Jeremie Zappia, Bianca Fernandes, Olivia Annett, Chrissy L. Hammond, Jason Wong, Dave J. Adams, Fabrizio Scarpa, Michael R. Whitehouse, Annela M. Seddon, James P. K. Armstrong   +16 more
wiley   +1 more source