Results 1 to 10 of about 183,531 (165)

A numerical study of a lifted $$\hbox {H}_2/\hbox {N}_2$$ H 2 / N 2 flame excited by an axial and flapping forcing [PDF]

open access: yesScientific Reports, 2022
The large eddy simulation method combined with the Eulerian stochastic field approach has been used to study excited lifted hydrogen flames in a stream of hot co-flow in a configuration closely corresponding to the so-called Cabra flame.
Artur Tyliszczak, Agnieszka Wawrzak
doaj   +2 more sources

Automated particle analysis of D.B. Cooper's tie. [PDF]

open access: yesJ Forensic Sci
Abstract Automated particle analysis (APA) using scanning electron microscopy (SEM) and energy‐dispersive x‐ray spectrometry (EDS) is a well‐known method in forensics, especially as it is applied to gunshot residue analysis. Here we describe the analysis of particles lifted from D.B. Cooper's tie, which was left on the hijacked plane in 1971.
Kaye TG, Rhodes KL.
europepmc   +2 more sources

Design of an 8-Channel Transmit 32-Channel Receive 11.7T Head Coil and Evaluation of SNR Gains. [PDF]

open access: yesMagn Reson Med
ABSTRACT Purpose To design and develop an 8‐channel transmit 32‐channel receive 11.7T head coil for the strongest human MRI scanner to date, demonstrate safety, and evaluate signal‐to‐noise ratio (SNR) gains compared to 7T, the most used ultra‐high‐field (UHF) platform.
Chu S   +8 more
europepmc   +2 more sources

Double coaxial pipe jet control using DBD-PA and bluff body

open access: yesJournal of Fluid Science and Technology, 2023
In this study, a double-tube burner nozzle with a DBD-PA (dielectric barrier discharge plasma actuator) and flame holder was employed to regulate the lifted flame.
Masato AKIMOTO   +2 more
doaj   +1 more source

Validation of Combustion Models for Lifted Hydrogen Flame [PDF]

open access: yesE3S Web of Conferences, 2019
Within a Reynolds Averaged Numerical Simulation (RANS) approach for turbulence modelling, a computational investigation of a turbulent lifted H2/N2 flame is presented.
Cemal Benim Ali, Pfeiffelmann Björn
doaj   +1 more source

Direct spray combustion in a tubular flame burner toward fine particle synthesis

open access: yesJournal of Thermal Science and Technology, 2021
A tubular flame burner equipped with a two-fluid nozzle for liquid precursor injection was developed and applied to the synthesis of fine particles. A tubular flame was established based on the axial spray of ethanol as a liquid fuel from the two-fluid ...
Tomoyuki HIRANO   +3 more
doaj   +1 more source

Numerical Investigation of Ducted Fuel Injection Strategy for Soot Reduction in Compression Ignition Engine [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
The ducted fuel injection strategy is a method that significantly reduces soot emissions in direct injection compression ignition engines. Fuel is injected into the combustion chamber through a duct enhancing the air-fuel mixture.
R. Şener
doaj   +1 more source

Flow field and interaction of lifted flames in a triple port burner

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, we experimentally examined a combustion field in a triple port burner. There are four flame configurations, consisting of attached flames, inner attached/outer lifted flames, inner lifted/outer attached flames, and twin lifted flames ...
Kazuhiro YAMAMOTO   +3 more
doaj   +1 more source

Flamelet Characteristics of Gaseous and Spray Lifted Flames on Two-Dimensional Direct Numerical Simulations

open access: yesJournal of Fluid Science and Technology, 2008
The detailed behaviors of gaseous and spray lifted flames are studied by two- dimensional direct numerical simulations (DNS), and the characteristics of the flamelets are investigated in terms of two key variables for flamelet modeling, namely mixture ...
Yuya BABA, Ryoichi KUROSE
doaj   +1 more source

Experimental Investigation on the Effects of the Geometry of the Pilot Burner on Main Flame

open access: yesEnergies, 2021
Various kinds of pilot burners were experimentally investigated to examine the effects of their geometry and their location relative to the main burner of a real size combustor.
Cheol Woo Lee, In Su Kim, Jung Goo Hong
doaj   +1 more source

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