Latest Articles of Combustion and Flame


Deflagration-to-detonation transition in an unconfined space 10.1016/j.combustflame.2018.03.006 2018-04-03 Whereas deflagration-to-detonation transition in confined systems is a matter of common knowledge, feasibility of the transition in unconfined space is still a matter of controversy. With a freely expanding self-accelerating spherical flame as an example, it ...
Direct numerical simulation of a temporally evolving air/n-dodecane jet at low-temperature diesel-relevant conditions 10.1016/j.combustflame.2018.02.020 2018-03-28 We present a direct numerical simulation of a temporal jet between n-dodecane and diluted air undergoing spontaneous ignition at conditions relevant to low-temperature diesel combustion. The jet thermochemical conditions were selected to result in two-stage i...
An experimental and modeling study on the low temperature oxidation of surrogate for JP-8 part I: Neat 1,3,5-trimethylbenzene 10.1016/j.combustflame.2017.12.030 2018-03-02 This work describes the experimental and modeling study of low temperature oxidation of 1,3,5-trimethylbenzene (T135MB) in a jet-stirred reactor over the temperature range of 700–1100 K at atmospheric pressure under fuel-lean and stoichiometric conditions. 9 ...
Detailed SGS atomization model and its implementation to two-phase flow LES 10.1016/j.combustflame.2018.01.026 2018-03-02 A novel turbulent atomization model, which is physically closed itself and free of case-by-case parameter tuning using experimental data, has been formulated and demonstrated in the framework of turbulent spray combustion large-eddy simulation (LES). Based on...
Critical kinetic uncertainties in modeling hydrogen/carbon monoxide, methane, methanol, formaldehyde, and ethylene combustion 10.1016/j.combustflame.2018.02.006 2018-03-02 In view of the critical role of the underlying uncertainties of the reaction model in future progress of combustion chemistry modeling, Foundational Fuel Chemistry Model 1.0 (FFCM-1) was developed with uncertainty minimization against available fundamental co...
Unsteady droplet combustion with fuel thermal expansion 10.1016/j.combustflame.2018.01.035 2018-03-02 Millimeter-size fuel droplets burning in microgravity show substantial thermal expansion at earlier times in their burning history. Here, we develop a simple model that accounts for thermal expansion of the liquid fuel and compare it against experimental meas...
Dielectric-barrier-discharge plasma-assisted hydrogen diffusion flame. Part 1: Temperature, oxygen, and fuel measurements by one-dimensional fs/ps rotational CARS imaging 10.1016/j.combustflame.2018.01.031 2018-02-21 One-dimensional hybrid fs/ps CARS imaging provides single-laser-shot measurements of temperature, oxygen, and hydrogen in a plasma-assisted hydrogen diffusion flame. The coaxial dielectric-barrier-discharge burner collapses the Re ∼50 hydrogen diffusion flame...
Ozone assisted cool flame combustion of sub-millimeter sized n-alkane droplets at atmospheric and higher pressure 10.1016/j.combustflame.2018.01.015 2018-02-06 Cool flame combustion of individual and isolated sub-millimeter sized n-heptane (n-C7H16) and n-decane (n-C10H22) droplets are computationally investigated for atmospheric and higher operating pressure (25 atm) conditions with varying levels of ozone (O3) mol...
Role of induced axial acoustics in transverse acoustic flame response 10.1016/j.combustflame.2017.12.035 2018-02-06 This paper addresses the mechanisms through which transverse acoustic oscillations excite unsteady heat release. Forced and self-excited transverse acoustic instability studies to date have strong coupling between the transverse and axial acoustic fields near...
Dielectric-barrier-discharge plasma-assisted hydrogen diffusion flame. Part 2: Modeling and comparison with experiments 10.1016/j.combustflame.2017.12.031 2018-01-31 Recent visual, PIV, and fs-CARS measurements show the multiple fundamental changes that occur when a hydrogen stand-burner flame is actuated by a dielectric-barrier-discharge (DBD). These are far more significant than in corresponding actuation without combus...

Deflagration-to-detonation transition in an unconfined space

10.1016/j.combustflame.2018.03.006

2018-04-03

Whereas deflagration-to-detonation transition in confined systems is a matter of common knowledge, feasibility of the transition in unconfined space is still a matter of controversy. With a freely expanding self-accelerating spherical flame as an example, it ...

Direct numerical simulation of a temporally evolving air/n-dodecane jet at low-temperature diesel-relevant conditions

10.1016/j.combustflame.2018.02.020

2018-03-28

We present a direct numerical simulation of a temporal jet between n-dodecane and diluted air undergoing spontaneous ignition at conditions relevant to low-temperature diesel combustion. The jet thermochemical conditions were selected to result in two-stage i...

An experimental and modeling study on the low temperature oxidation of surrogate for JP-8 part I: Neat 1,3,5-trimethylbenzene

10.1016/j.combustflame.2017.12.030

2018-03-02

This work describes the experimental and modeling study of low temperature oxidation of 1,3,5-trimethylbenzene (T135MB) in a jet-stirred reactor over the temperature range of 700–1100 K at atmospheric pressure under fuel-lean and stoichiometric conditions. 9 ...

Detailed SGS atomization model and its implementation to two-phase flow LES

10.1016/j.combustflame.2018.01.026

2018-03-02

A novel turbulent atomization model, which is physically closed itself and free of case-by-case parameter tuning using experimental data, has been formulated and demonstrated in the framework of turbulent spray combustion large-eddy simulation (LES). Based on...

Critical kinetic uncertainties in modeling hydrogen/carbon monoxide, methane, methanol, formaldehyde, and ethylene combustion

10.1016/j.combustflame.2018.02.006

2018-03-02

In view of the critical role of the underlying uncertainties of the reaction model in future progress of combustion chemistry modeling, Foundational Fuel Chemistry Model 1.0 (FFCM-1) was developed with uncertainty minimization against available fundamental co...

Unsteady droplet combustion with fuel thermal expansion

10.1016/j.combustflame.2018.01.035

2018-03-02

Millimeter-size fuel droplets burning in microgravity show substantial thermal expansion at earlier times in their burning history. Here, we develop a simple model that accounts for thermal expansion of the liquid fuel and compare it against experimental meas...

Dielectric-barrier-discharge plasma-assisted hydrogen diffusion flame. Part 1: Temperature, oxygen, and fuel measurements by one-dimensional fs/ps rotational CARS imaging

10.1016/j.combustflame.2018.01.031

2018-02-21

One-dimensional hybrid fs/ps CARS imaging provides single-laser-shot measurements of temperature, oxygen, and hydrogen in a plasma-assisted hydrogen diffusion flame. The coaxial dielectric-barrier-discharge burner collapses the Re ∼50 hydrogen diffusion flame...

Ozone assisted cool flame combustion of sub-millimeter sized n-alkane droplets at atmospheric and higher pressure

10.1016/j.combustflame.2018.01.015

2018-02-06

Cool flame combustion of individual and isolated sub-millimeter sized n-heptane (n-C7H16) and n-decane (n-C10H22) droplets are computationally investigated for atmospheric and higher operating pressure (25 atm) conditions with varying levels of ozone (O3) mol...

Role of induced axial acoustics in transverse acoustic flame response

10.1016/j.combustflame.2017.12.035

2018-02-06

This paper addresses the mechanisms through which transverse acoustic oscillations excite unsteady heat release. Forced and self-excited transverse acoustic instability studies to date have strong coupling between the transverse and axial acoustic fields near...

Dielectric-barrier-discharge plasma-assisted hydrogen diffusion flame. Part 2: Modeling and comparison with experiments

10.1016/j.combustflame.2017.12.031

2018-01-31

Recent visual, PIV, and fs-CARS measurements show the multiple fundamental changes that occur when a hydrogen stand-burner flame is actuated by a dielectric-barrier-discharge (DBD). These are far more significant than in corresponding actuation without combus...