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Forman A. Williams
University of California, San Diego
CombustionPremixed flameChemistryDiffusion flameThermodynamics
376Publications
54H-index
10.5kCitations
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Publications 416
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#1Álvaro MuelasH-Index: 1
Last. Forman A. WilliamsH-Index: 54
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Abstract The temporal evolution of the droplet radius is measured experimentally in high-temperature inert atmospheres for three different alcohols (ethanol, n-butanol, and glycerol) and three alkanes (n-heptane, n-dodecane, and n-hexadecane). It is shown that, while accompanying theoretical predictions of droplet-radius variations show excellent accuracy for the three alcohols, the three alkanes exhibit vaporization rates that are significantly smaller than those predicted theoretically. The ac...
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#2Prabakaran Rajamanickam (UCSD: University of California, San Diego)
Last. Forman A. WilliamsH-Index: 54
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Abstract Numerical computations employing the relevant 9-step detailed chemistry are used to characterize the different combustion modes emerging in mixing layers separating nitrogen-diluted counterflowing planar streams of hydrogen and oxygen. Attention is focused on high degrees of dilution, resulting in near-limit flames, with peak temperatures close to the crossover temperature. A bifurcation diagram is presented in a plane, having the stoichiometric mixture fraction and normalized strain ra...
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#1Alejandro Millán-Merino (Charles III University of Madrid)H-Index: 1
#2Eduardo Fernández Tarrazo (Charles III University of Madrid)H-Index: 9
Last. Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
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Abstract We present in this short communication a modification to our previous ethanol reduced combustion chemistry (Millan-Merino, 2018) that eliminates nonphysical values of the species concentrations which we discovered in applying the mechanism to the combustion of an isolated ethanol droplet. This unsteady test is reported here to check the multipurpose character of the reduced mechanism for a problem that combines non-homogeneous autoignition, rich and lean premixed-flame propagation, and ...
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#1Jaime Carpio Huertas (UPM: Technical University of Madrid)H-Index: 8
Last. Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
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#1Yuanjie Jiang (UCSD: University of California, San Diego)
#2Andrea Gruber (SINTEF)H-Index: 8
Last. Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
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2 CitationsSource
#1Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
#2Vedha Nayagam (Case Western Reserve University)H-Index: 15
Abstract Previously published simplified n-alkane cool-flame chemistry is re-evaluated for n-dodecane. Comparison with experimental results produces improved rate-parameter estimates for n-dodecane and indicates deterioration of the simplified chemistry with increasing pressure in predictions of droplet diameters at cool-flame extinction.
1 CitationsSource
#1Kazunori Kuwana (YU: Yamagata University)H-Index: 17
#2Kozo Saito (UK: University of Kentucky)H-Index: 31
Last. Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
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ABSTRACTA model is proposed for estimating how fire whirls may begin to move along line fires and the velocities at which they may propagate steadily against the direction of the prevailing wind, i...
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#1Daniel Martínez-Ruiz (UPM: Technical University of Madrid)H-Index: 4
#2César Huete (Complutense University of Madrid)
Last. Forman A. Williams (UCSD: University of California, San Diego)H-Index: 54
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A simplified formulation, based on treating the ratio of the heat release to the postshock thermal enthalpy as a small parameter, accommodating arbitrary chemistry descriptions, is shown to reprodu...
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