Numerical simulations of premixed flame ignition in turbulent flow

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題名:	Numerical simulations of premixed flame ignition in turbulent flow
作者:	施聖洋;Sereshchenko, Evgeniy;Fursenko, Roman;Minaev, Sergey;Shy, Shenqyang
貢獻者:	工學院機械工程學系
關鍵詞:	Air;Chemical reactions;Computational fluid dynamics;Flame ignition;Fluid flow;Ignition;Ignition temperature;Mathematical models;Methane;Minimum ignition energy;Porosity;Pressure;Simulation;Surface area;Thermal-diffusion model;Turbulence;Turbulent flow;Turbulent flows;Velocity
日期:	2014-11-02
上傳時間:	2026-04-23 15:19:45 (UTC+8)
出版者:	Taylor and Francis Ltd.;New York: Taylor & Francis
摘要:	摘要： The ignition process in a prescribed flow field was investigated in the frame of a 2D thermal-diffusion model. It is assumed that the heat release in the course of chemical reaction has no influence on flow. The latter is obtained by a hydrodynamic model without taking into account chemical reactions. Initial conditions were represented by a fixed size square domain δ filled with hot combustion products with constant temperature. If the flame is ignited at a chosen minimum value of initial temperature this value is referred to as the ignition temperature T ign for a given size of the hot domain. The minimum ignition energy is determined as a product of ignition temperature and square domain size E ign = T ign δ 2 . The dependencies of minimum ignition energy on characteristics of time-independent, space-periodic flow field are obtained. The ignition process in the flow field, which is pre-calculated in the frame of the two-dimensional Euler equation for freely decaying turbulence, is also studied. It is found that theoretical results obtained within thermal-diffusion models allow to explain qualitatively some experimental results on the ignition in the turbulent flow. 出版者： New York: Taylor & Francis 出版日期： 2014-11-02 出處： Combustion Science and Technology, 2014-11, Vol.186 (10-11), p.1552-1561 版權： Copyright © Taylor & Francis Group, LLC 版權： Copyright Taylor & Francis Ltd. 2014 識別號： ISSN: 0010-2202 識別號： EISSN: 1563-521X 識別號： DOI: 10.1080/00102202.2014.935600 識別號： CODEN: CBSTB9
顯示於類別:	[機械工程學系] 期刊論文

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