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Xiaolong Gou
Chongqing University
29Publications
13H-index
707Citations
Publications 29
Newest
#1Xiang Gao (Georgia Institute of Technology)H-Index: 7
#2Xiaolong Gou (Chongqing University)H-Index: 13
Last.Wenting Sun (Georgia Institute of Technology)H-Index: 21
view all 3 authors...
An automated hierarchical framework, Global Pathway Analysis (GPA), is presented to understand complex chemical kinetics. The behaviour of the reacting system at macro level is bridged to the eleme...
1 CitationsSource
#1Jin Yu (Chongqing Jiaotong University)H-Index: 1
#2Zijun Wang (Chongqing University)H-Index: 1
Last.Xiaolong Gou (Chongqing University)H-Index: 13
view all 4 authors...
A surrogate formulation methodology is proposed by directly using functional groups CH3, CH2, CH,C and phenyl to build the surrogate models for the FACE (fuels for advanced combustion engines) A and C gasoline fuels. The surrogates were formulated with the mixture of n-butane/n-heptane/iso-octane/2,5-dimethylhexane for FACE A, and with the mixture of n-butane/n-heptane/iso-octane/2,5-dimethylhexane/toluene for FACE C gasoline fuel. Based on the kinetic mechanisms of the candidate components, the...
Source
#1Mahdi Faghih (PKU: Peking University)H-Index: 4
#2Haiyue Li (PKU: Peking University)H-Index: 1
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 4 authors...
Abstract Usually premixed flame propagation and laminar burning velocity are studied for mixtures at normal or elevated temperatures and pressures, under which the ignition delay time of the premixture is much larger than the flame resistance time. However, in spark-ignition engines and spark-assisted compression ignition engines, the end-gas in the front of premixed flame is at the state that autoignition might happen before the mixture is consumed by the premixed flame. In this study, laminar ...
4 CitationsSource
#1Zisen Li (PKU: Peking University)H-Index: 2
#2Xiaolong Gou (Chongqing University)H-Index: 13
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 3 authors...
Abstract Hydrogen addition is widely used to improve the combustion performance of single-component fuel. In this study, the effects of hydrogen addition on non-premixed ignition of iso-octane by hot air in a diffusion layer were examined and interpreted numerically. Detailed chemistry and transport were considered in simulation. The non-premixed ignition delay times at different hydrogen blending levels were obtained and analyzed. It was found that hydrogen addition greatly reduces the ignition...
2 CitationsSource
#1Weikuo Zhang (PKU: Peking University)H-Index: 5
#2Mahdi Faqih (PKU: Peking University)H-Index: 1
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 4 authors...
Abstract Cool flame due to low-temperature chemistry (LTC) has received great attention recently. However, previous studies mainly focused on cool flames in homogenous systems without transport or non-premixed cool flames in droplet combustion or counterflow configuration. There are only a few studies on premixed cool flames, and the transient initiation and propagation of premixed cool flames are still not well understood. In this study, the initiation, propagation and disappearance of one-dime...
11 CitationsSource
#1Xiaolong Gou (Chongqing University)H-Index: 13
#2Wenting Sun (Georgia Institute of Technology)H-Index: 21
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 3 authors...
Numerical simulation is helpful for understanding fundamental combustion processes such as ignition, flame propagation, flame instability, extinction, and turbulence/flame interaction, and for revealing the physical-chemical mechanisms involved in these processes. Therefore, numerical simulation becomes one of the most important research tools for developing alternative fuels and high-performance combustion engines. However, the broad range of temporal and spatial scales and the complicated chem...
Source
#1Wei Wang (Chongqing University)H-Index: 1
#2Xiaolong Gou (Chongqing University)H-Index: 13
ABSTRACTA novel mechanism reduction method that integrates path flux analysis with multi generations and sensitivity analysis (MPFASA) is proposed to reduce the complex detailed chemistry and to generate skeletal mechanisms. At first, the path flux analysis with multi generations (MPFA) method is used to efficiently reduce detailed mechanisms; then the sensitivity analysis (SA) method is applied to further eliminate the redundant species and their related reactions on the basis of the skeletal c...
1 CitationsSource
#1Weikuo Zhang (PKU: Peking University)H-Index: 5
#2Xiaolong Gou (Chongqing University)H-Index: 13
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 3 authors...
Abstract Water vapor dilution has great impact on fundamental combustion processes such as ignition, flame propagation and extinction. In the literature, there are many studies on how water vapor addition affects flame propagation and extinction limit. However, the influence of water vapor addition on ignition receives little attention. In this study, numerical simulations considering detailed chemical mechanisms are conducted for the ignition of methane, n -butane and n -decane/air/water vapor ...
7 CitationsSource
#1Weikuo Zhang (PKU: Peking University)H-Index: 5
#2Xiaolong Gou (Chongqing University)H-Index: 13
Last.Zheng Chen (PKU: Peking University)H-Index: 32
view all 4 authors...
Abstract The laminar flame speed is one of the most important combustion properties of a combustible mixture. It is an important target for chemical mechanism validation and development, especially at fuel-lean and high pressure conditions. In this study, the laminar flame speeds of two types of lean high-hydrogen syngas/oxygen/helium mixtures were measured at normal and evaluated pressures up to 10 atm using a dual-chambered high pressure combustion facility. Similar to experiments, numerical s...
9 CitationsSource
#1Wei Wang (Chongqing University)H-Index: 1
#2Xiaolong Gou (Chongqing University)H-Index: 13
An improved path flux analysis with a multi generations (IMPFA) method is proposed to eliminate unimportant species and reactions, and to generate skeletal mechanisms. The production and consumption path fluxes of each species at multiple reaction paths are calculated and analysed to identify the importance of the species and of the elementary reactions. On the basis of the indexes of each reaction path of the first, second, and third generations, the improved path flux analysis with two generat...
4 CitationsSource
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