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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Measurements and large eddy simulation of propagating premixed flames
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Measurements and large eddy simulation of propagating premixed flames

机译：传播预混火焰的测量和大涡模拟

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摘要

This paper presents an experimental and numerical study of unsteady turbulent premixed flames igniting in an initially stagnant mixture and propagating past solid obstacles. The objective here is to study the outstanding issue of flow-flame interactions in transient premixed combustion environments. Particular emphasis is placed on the burning rate and the structure of the flame front. The experimental configuration consists of a chamber with a square cross-section filled with a combustible mixture of propane-air ignited from rest. An array of baffle plates as well as geometrical obstructions of varying shapes and blockage ratios, are placed in the path of the flame as it propagates from the ignition source to the vented end of the enclosure.
机译：本文提出了一个不稳定的湍流预混火焰在初始停滞的混合物中点燃并传播过去的固体障碍物的实验和数值研究。这里的目的是研究瞬态预混燃烧环境中流-火焰相互作用的突出问题。特别着重于燃烧速率和火焰前沿的结构。实验配置包括一个方形截面的腔室，该腔室充满了从静止处点燃的丙烷-空气的可燃混合物。当火焰从点火源传播到外壳的通风端时，在火焰的路径中放置了一系列挡板以及形状和阻塞率不同的几何障碍物。

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