Results 1 to 10 of about 48,704 (119)

Choice of reaction progress variable under preferential diffusion effects in turbulent syngas combustion based on detailed chemistry direct numerical simulations [PDF]

open access: yesScientific Reports
The combustion of hydrogen and carbon-monoxide mixtures, so-called syngas, plays an increasingly important role in the safety context of non-fossil energy generation, more specifically in the risk management of incidents in process engineering plants for
Vinzenz Silvester Wehrmann   +3 more
doaj   +2 more sources

Flame Stabilization and Blow-Off of Ultra-Lean H2-Air Premixed Flames

open access: yesEnergies, 2021
The manner in which an ultra-lean hydrogen flame stabilizes and blows off is crucial for the understanding and design of safe and efficient combustion devices.
Faizan Habib Vance   +3 more
doaj   +1 more source

Experimental Study on Local Flame Properties of Hydrogen Added Hydrocarbon Premixed Turbulent Flames

open access: yesJournal of Thermal Science and Technology, 2009
This experimental study is performed to investigate directly the local flame properties of turbulent propagating flames at the same weak turbulence condition (u'/SL0=1.4), in order to clarify basically the influence of the addition of hydrogen to ...
Masaya NAKAHARA   +2 more
doaj   +1 more source

Fluid-mechanical structure of methane-air and propane-air turbulent premixed flames

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The flow fields of lean and rich propane-air and methane-air turbulent premixed flames of the identical conditions of laminar burning velocity and characteristic of turbulence have been closely examined by using a three-color six-beam LDV system.
Yasuko YOSHIDA   +2 more
doaj   +1 more source

Quantitative experimental monitoring of molecular diffusion in clay with positron emission tomography [PDF]

open access: yesSolid Earth, 2016
Clay plays a prominent role as barrier material in the geosphere. The small particle sizes cause extremely small pore sizes and induce low permeability and high sorption capacity.
J. Kulenkampff   +3 more
doaj   +1 more source

Effect of Stretch on Local Burning Velocity of Premixed Turbulent Flames

open access: yesJournal of Thermal Science and Technology, 2007
The effect of positive stretch on the local flame properties of turbulent propagating flames in the flamelet regime was investigated experimentally for methane-, hydrogen- and propane-air mixtures with lean and rich having nearly the same laminar burning
Masaya NAKAHARA   +3 more
doaj   +1 more source

Flow divergence in the turbulent premixed flames

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In order to elucidate the flow divergence in the rich propane-air turbulent premixed flames, the flow fields of lean and rich propane-air and methane-air turbulent premixed flames of the identical conditions of laminar burning velocity and characteristic
Yasuko YOSHIDA   +2 more
doaj   +1 more source

Enhancing Diffusion of Innovation through Operational Analysis of Agent-Based Modelling [PDF]

open access: yesچشم‌انداز مدیریت صنعتی, 2020
The purpose of this study is to introduce a method to improve innovation diffusion by using agent-based modeling. In this regard, an operational analysis to create agent-based modeling is investigated. agent-based model of this research is carried out in
Ehsan Abolfathi   +2 more
doaj   +1 more source

Residents as Meso-groups: A Conceptual Approach to Preferential Regimes and Spatial Development [PDF]

open access: yesAlterEconomics
The study develops a conceptual approach to using preferential regimes for the spatial development of the Russian economy, focusing on their potential to support neighboring territories, reduce regional disparities, and strengthen regional connections ...
Vladimir A. TRIFONOV
doaj   +1 more source

3D diffusion model within the collagen apatite porosity: An insight to the nanostructure of human trabecular bone. [PDF]

open access: yesPLoS ONE, 2017
Bone tissue at nanoscale is a composite mainly made of apatite crystals, collagen molecules and water. This work is aimed to study the diffusion within bone nanostructure through Monte-Carlo simulations.
Fabiano Bini   +3 more
doaj   +1 more source

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