Results 21 to 30 of about 32,548 (221)
Numerical Simulation of Premixed Methane–Air Explosion in a Closed Tube with U-Type Obstacles
Energies, 2022 Given the spatial structures and functional requirements, there are a number of different types of obstacles in long and narrow confined spaces that will cause a premixed gas explosion to produce greater overpressure and influence the flame behavior for ...
Bin Hao +5 more
doaj +1 more source
Instability of lean H2-O2-CO2 premixed flames on a flat burner
Nihon Kikai Gakkai ronbunshu, 2015 Global warming and air pollution mainly caused by emissions of CO2 and NOx are serious problems. We focus on a lean H2-O2 premixed flame because H2-O2 premixed flame emits no CO2 and NOx.
Toshiyuki KATSUMI +3 more
doaj +1 more source
A fast, low-memory, and stable algorithm for implementing multicomponent transport in direct numerical simulations [PDF]
, 2019 Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume +4 more
core +2 more sources
Large Eddy Simulation of combustion instabilities in a lean partially premixed swirled flame [PDF]
, 2012 This paper investigates one issue related to Large Eddy Simulations (LES) of self- excited combustion instabilities in gas-fueled swirled burners: the effects of incom- plete mixing between the gas injection and the combustion chamber.
Albouze +36 more
core +3 more sources
Energies, 2021 Moderate or intense low-oxygen dilution (MILD) combustion is a novel combustion technique that can simultaneously improve thermal efficiency and reduce emissions.
Hazem S.A.M. Awad +3 more
doaj +1 more source
Case Studies in Thermal Engineering, 2022 This study presents the experimental determination of laminar burning velocity for critical premixed flames with multiple fuels or strong oxidizers. Experiments were conducted with a slot burner under methane/air, methane/nitrous oxide, and syngas (CH4 ...
Yueh-Heng Li, Jin-Wei Liang, Hung-Ju Lin
doaj +1 more source
Generation of adverse pressure gradient in the circumferential flashback of a premixed flame [PDF]
, 2016 Circumferential upstream propagation of a premixed flame in a region confined between two concentric tubes is considered. The cold flow in this configuration features rotational motion and the flame is modelled as an interface separating the burned and ...
Brown, Phillip +4 more
core +1 more source
Premixed-flame shapes and polynomials [PDF]
Physica D: Nonlinear Phenomena, 2015 The nonlinear nonlocal Michelson-Sivashinsky equation for isolated crests of unstable flames is studied, using pole-decompositions as starting point. Polynomials encoding the numerically computed 2N flame-slope poles, and auxiliary ones, are found to closely follow a Meixner Pollaczek recurrence; accurate steady crest shapes ensue for N>=3. Squeezed
Denet, Bruno, Joulin, Guy
openaire +4 more sources
An experimental study on coflow diffusion combustion in a pellet-packed bed with different bed lengths [PDF]
Royal Society Open Science, 2018 In experimental investigations on axial symmetry, over-ventilated CH4/air diffusion combustion in a packed bed is executed to study the height, shape and stability of the flame.
Junrui Shi +6 more
doaj +1 more source
Energies, 2021 The near-wall flame structure and pollutant emissions of the laminar premixed biogas-hydrogen impinging flame were simulated with a detailed chemical mechanism.
Zhilong Wei +4 more
doaj +1 more source