Numerical simulation of gasoline-air thermal ignition induced by continuous hot wall

WU Songlin; DU Yang; OU Yihong; ZHANG Peili; LIANG Jianjun

doi:10.11883/bzycj-2016-0262

Volume 38 Issue 3

Feb. 2018

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WU Songlin, DU Yang, OU Yihong, ZHANG Peili, LIANG Jianjun. Numerical simulation of gasoline-air thermal ignition induced by continuous hot wall[J]. Explosion And Shock Waves, 2018, 38(3): 541-548. doi: 10.11883/bzycj-2016-0262

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WU Songlin, DU Yang, OU Yihong, ZHANG Peili, LIANG Jianjun. Numerical simulation of gasoline-air thermal ignition induced by continuous hot wall[J]. Explosion And Shock Waves, 2018, 38(3): 541-548. doi: 10.11883/bzycj-2016-0262

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Numerical simulation of gasoline-air thermal ignition induced by continuous hot wall

doi: 10.11883/bzycj-2016-0262

1.
Department of Fundamental Studies, Army Logistical University, Chongqing 401311, China
2.
Department of Petroleum Supply Engineering, Army Logistical University, Chongqing 401311, China

Received Date: 2016-08-25
Rev Recd Date: 2017-04-07
Publish Date: 2018-05-25

Abstract

Abstract

In order to simulate the thermal ignition process of gasoline-air in continuous hot wall, the chemical kinetic model, hydrodynamic model and radiation heat transfer model were coupled to establish a unified model of gasoline-airthermal ignition. According to the working condition of the experiment, the occurrence process of gasoline-air thermal ignition was simulated under the conditions of high temperature induced by continuous hot wall in confined space. Flow field evolution characteristics of the temperature and the pressure were analyzed. The variation curves of temperature, pressure, flow velocity, turbulent velocity and group concentration were obtained at different positions. By simulation, it is found that there are three stages in the process of gasoline-air thermal ignition, namely, the initial heating stage, the heating intermediate stage and the thermal ignition stage. The main reason for the existence of different stages is that the leading roles of chemical reaction and flow are different.
- gasoline-air,
- unified model,
- thermal ignition,
- continuous hot wall,
- chemical kinetic,
- hydrodynamic,
- radiation heat transfer

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References(13)

References

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