Search Results - "Bushe, W. K."
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1
The influence of fuel composition on a heavy-duty, natural-gas direct-injection engine
Published in Fuel (Guildford) (01-03-2010)“…This work investigates the implications of natural-gas composition on the combustion in a heavy-duty natural-gas engine and on the associated pollutant…”
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2
Conditional Source-Term Estimation as a Method for Chemical Closure in Premixed Turbulent Reacting Flow
Published in Flow, turbulence and combustion (01-12-2008)“…A Conditional Source-term Estimation (CSE) model is used to close the mean reaction rates for a turbulent premixed flame. A product-based reaction progress…”
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3
Shock-tube study of methane ignition under engine-relevant conditions: experiments and modeling
Published in Combustion and flame (01-01-2004)“…A series of shock tube experiments was conducted to measure the ignition delay of homogeneous methane/air (CH4/air) mixtures at moderate temperatures (1000 to…”
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4
The uniform conditional state model for turbulent reacting flows
Published in Combustion and flame (01-07-2019)“…A novel model for the source term in RANS/LES of turbulent combustion, the Uniform Conditional State (UCS) model, is derived. The UCS model can be viewed as…”
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5
Effects of Hydrogen Addition on High-Pressure Nonpremixed Natural Gas Combustion
Published in Combustion science and technology (01-01-2011)“…The effects of hydrogen addition on the ignition and combustion of a high-pressure methane jet in a quiescent charge of high-temperature, medium-pressure air…”
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6
Effects of Fuel Composition on High-Pressure Non-Premixed Natural Gas Combustion
Published in Combustion science and technology (01-03-2009)“…The effects of adding ethane or nitrogen on the ignition and combustion of a non-premixed high-pressure methane-air jet have been investigated using…”
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An aerosol model to predict size and structure of soot particles
Published in Combustion theory and modelling (01-08-2005)“…An aerosol model to simulate soot formation and growth was developed using moving- and fixed-sectional methods. The new model is composed of a set of…”
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8
Experimental and kinetic study of autoignition in methane/ethane/air and methane/propane/air mixtures under engine-relevant conditions
Published in Combustion and flame (2006)“…The ignition delay of homogeneous methane/air mixtures enriched with small fractions of ethane/propane was measured using the reflected-shock technique at…”
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9
Presumed PDF modeling for RANS simulation of turbulent premixed flames
Published in Combustion theory and modelling (09-07-2010)“…In this work, a turbulent premixed Bunsen flame is simulated using a RANS approach for turbulence and a flamelet model for turbulence-chemistry interactions…”
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10
Simulation of transient turbulent methane jet ignition and combustion under engine-relevant conditions using conditional source-term estimation with detailed chemistry
Published in Combustion theory and modelling (01-12-2007)“…The ignition and combustion processes of transient turbulent methane jets under high-pressure and moderate temperature conditions were simulated using a…”
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11
Simulation of a turbulent non-premixed flame using conditional source-term estimation with trajectory generated low-dimensional manifold
Published in Proceedings of the Combustion Institute (2007)“…Conditional source-term estimation (CSE) is a method to close the mean chemical reaction source-term in an averaged transport equation. It is used with a…”
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12
Stochastic simulation of variations in the autoignition delay time of premixed methane and air
Published in Combustion theory and modelling (01-04-2006)“…A mesoscopic stochastic particle model for homogeneous combustion is introduced. The model can be used to investigate the physical fluctuations in a system of…”
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13
On the experimental validation of combustion simulations in turbulent non-premixed jets
Published in Combustion theory and modelling (17-11-2010)“…A Reynolds averaged Navier-Stokes (RANS) based combustion model, which incorporated the conditional source-term estimation (CSE) method for the closure of the…”
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14
Small-Scale Interaction of Turbulence with Thermonuclear Flames in Type Ia Supernovae
Published in The Astrophysical journal (10-10-1999)“…Microscopic turbulence-flame interactions of thermonuclear fusion flames occurring in Type Ia supernovae were studied by means of incompressible direct…”
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15
Spatial gradients of conditional averages in turbulent flames
Published in Combustion and flame (01-06-2018)“…Data from the two different methane/air jet experimental databases is examined to understand the effects of spatial variations in the conditional averages of…”
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16
Experimental and kinetic study of shock initiated ignition in homogeneous methane-hydrogen-air mixtures at engine-relevant conditions
Published in International journal of chemical kinetics (01-04-2006)“…The ignition delay time of two stoichiometric methane/hydrogen/air mixtures has been measured in a shock tube facility at pressures from 16 to 40 atm and…”
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17
Natural gas fuelling for heavy-duty on-road use: current trends and future direction
Published in International journal of environmental studies (01-08-2006)“…The use of natural gas as an alternative fuel offers the potential for significant benefits, including lower engine-out emissions compared to conventional…”
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18
An a priori analysis on principal component analysis based conditional source-term estimation model for Sandia jet flames
Published in Combustion and flame (01-02-2024)“…Data from all spatial locations and two turbulent flames in the Sandia/TUD database are used to explore the feasibility of adopting principal components (PC)…”
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19
Linear-Eddy Model Formulated Probability Density Function and Scalar Dissipation Rate Models for Premixed Combustion
Published in Flow, turbulence and combustion (01-10-2014)“…A tabulated, pseudo-turbulent Probability Density Function (PDF) model for premixed combustion is proposed. The Linear-Eddy Model (LEM) is used to construct…”
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20
Application of the conditional source-term estimation model for turbulence-chemistry interactions in a premixed flame
Published in Combustion theory and modelling (01-04-2012)“…Conditional Source-term Estimation (CSE) is a closure model for turbulence-chemistry interactions. This model uses the first-order CMC hypothesis to close the…”
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