Results 31 to 40 of about 268,971 (258)

Instabilities in high pressure, iso-octane-air spherical explosion flames [PDF]

open access: yes, 2014
High speed video shadowgraph and Schlieren images of spherical explosion flames obtained in the Leeds bomb have been analysed in the context of the Bechtold-Matalon linear model of spherical explosion flame instabilities.
Huang, Y., Lockett, R. D., Woolley, R.
core   +1 more source

Experimental Study on Cryogenic Compressed Hydrogen Jet Flames

open access: yesFire
Cryogenic compressed hydrogen (CcH2) technology combines the advantages of high pressure and low temperature to achieve high hydrogen storage density without liquefying the hydrogen, which has broad application prospects.
Shishuai Nie   +5 more
doaj   +1 more source

Numerical Study on the Effects of Turbulence Scale on Spherically Propagating Hydrogen Flames within Multiple Flame Radii

open access: yesInternational Journal of Automotive Engineering, 2019
Three-dimensional direct numerical simulations of spherically propagating premixed turbulent hydrogen flames were carried out to clarify the influence of turbulence scale on propagating hydrogen/air flame.
Hazim Shehab   +3 more
doaj   +1 more source

Non-linear simulations of combustion instabilities with a quasi-1D Navier-Stokes code

open access: yes, 2010
As lean premixed combustion systems are more susceptible to combustion instabilities than non-premixed systems, there is an increasing demand for improved numerical design tools that can predict the occurrence of combustion instabilities with high ...
Allam   +29 more
core   +1 more source

Study of burner geometry effects on non-premixed flame response under acoustic excitation

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
The study of the flame under the acoustic excitation contributes to the study of flame self-excited thermoacoustic instability. Although non-premixed combustion is widely used in industry, research on its combustion instability characteristics is ...
Hao Zhou   +3 more
doaj   +1 more source

Flame propagation and burning rates of methane-air mixtures using schlieren photography [PDF]

open access: yes, 2016
Different methodology have been shown to produce different results for Markstein length and laminar burning velocity of methane-air mixture. This study attempts to determine the aforesaid parameters using the newly developed closed vessel combustion ...
Mohd. Sies, M.   +3 more
core   +1 more source

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced 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   +9 more
wiley   +1 more source

Numerical Study of Hydrogen Auto-Ignition Process in an Isotropic and Anisotropic Turbulent Field

open access: yesEnergies, 2021
The physical mechanisms underlying the dynamics of the flame kernel in stationary isotropic and anisotropic turbulent field are studied using large eddy simulations (LES) combined with a pdf approach method for the combustion model closure.
Agnieszka Wawrzak, Artur Tyliszczak
doaj   +1 more source

Endothelial Cells Angiogenesis in Sulfated Glycosaminoglycan (GAG) Hydrogels Enhanced by Bioactive Glass‐Released Ions

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni   +13 more
wiley   +1 more source

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