Results 11 to 20 of about 1,977,713 (106)

An Experimental Measurement on Laminar Burning Velocities and Markstein Length of Iso-Butane-Air Mixtures at Ambient Conditions

open access: yesMATEC Web of Conferences, 2016
In the present work, experimental investigation on laminar combustion of iso-butane-air mixtures was conducted in constant volume explosion vessel. The experiments were conducted at wide range of equivalence ratios ranging between Ф = 0.6 and 1.4 and ...
Yousif Alaeldeen Altag   +2 more
doaj   +3 more sources

Turbulent flame development in a high-pressure combustion vessel [PDF]

open access: yes, 2005
The objective of this work was to extend the range of turbulent burning velocities presented in the literature by performing new measurements at elevated pressures over a range of turbulent velocities, u' (r. m. s. deviation from the mean velocity).
Ormsby, Matthew P.
core   +9 more sources

Experimental and theoretical studies of combustion rates at high pressure [PDF]

open access: yes, 2004
The thesis reports experimental and theoretical studies of premixed combustion rates at high pressure and temperature. It focuses on measurements of laminar and turbulent burning velocities at high pressures and temperatures approaching those in engines,
AI-Shahrany, Ali Saied
core   +7 more sources

Turbulent Flame Speed and Turbulent Markstein Length in the Near Field of a Harmonically Oscillating Flame

open access: yes, 2023
This study investigates turbulent flame speed and turbulent Markstein length using analytic and numerical methods. Using asymptotic analysis on harmonically oscillating flames, explicit expressions for the un-stretched turbulent flame speed and the ...
Jungho Sohn (16919452)   +2 more
core   +1 more source

Richard von Mises’ work for ZAMM until his emigration in 1933 and glimpses of the later history of ZAMM

open access: yes, 2020
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 100, Issue 6, June 2020.
Reinhard Siegmund‐Schultze
wiley   +1 more source

Flame propagation in arbitrarily shaped vessels

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 18, Issue 1, December 2018., 2018
Abstract A new method to capture the flame front in premixed, confined, low Mach number combustion using the flame‐sheet approximation is presented. Connected marker points represent the flame front along which a singular volumetric flux source is prescribed. Thus, the jump condition for the normal velocity is fulfilled.
Clemens Gößnitzer, Herbert Steinrück
wiley   +1 more source

Laminar Flame Characteristics of C1–C5 Primary Alcohol-Isooctane Blends at Elevated Temperature

open access: yesEnergies, 2016
The laminar combustion characteristics of blends of isooctane and C1–C5 primary alcohols (i.e., methanol, ethanol, n-propanol, n-butanol and n-pentanol) were investigated using the spherical expanding flame methodology in a constant volume chamber at ...
Qianqian Li, Wu Jin, Zuohua Huang
doaj   +1 more source

Equivolumetric Evolution of Planar Curves

open access: yesAbstract and Applied Analysis, Volume 2014, Issue 1, 2014., 2014
We present the equivolumetric evolution of planar curves, which is a new type of curvature dependent evolution for a flame propagation model. This evolution reflects the nonlinear contribution of the curvature of the front to the flame propagation speed. We also present some numerical results of the equivolumetric evolution using the level set method.
Hwan Pyo Moon, Noemi Wolanski
wiley   +1 more source

Effect of Hydrogen Content and Dilution on Laminar Burning Velocity and Stability Characteristics of Producer Gas‐Air Mixtures

open access: yesJournal of Combustion, Volume 2008, Issue 1, 2008., 2008
Producer gas is one of the promising alternative fuels with typical constituents of H2, CO, CH4, N2, and CO2. The laminar burning velocity of producer gas was computed for a wide range of operating conditions. Flame stability due to preferential diffusional effects was also investigated. Computations were carried out for spherical outwardly propagating
V. Ratna Kishore   +3 more
wiley   +1 more source

Burning Behaviour of High-Pressure CH4-H2-Air Mixtures

open access: yesEnergies, 2013
Experimental characterization of the burning behavior of gaseous mixtures has been carried out, analyzing spherical expanding flames. Tests were performed in the Device for Hydrogen-Air Reaction Mode Analysis (DHARMA) laboratory of Istituto Motori& ...
Jacopo D'Alessio, Vincenzo Moccia
doaj   +1 more source

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