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Supplemental materials for 'Study on the role of soot and heat fluxes in upward flame spread using a wall resolved large eddy simulation approach'

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Mendeley Data2024-03-27 更新2024-06-26 收录
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flameSpreadModelling.pdf: The description of flame spread modelling used in this study. In the paper, only updated sub-models are described. The PMMA wall size is 1 m in height, 0.3 m in width, and 0.01 m in thickness. The flame spreads to the top of the wall about 500 s. Giving incident radiative heat flux of 45 kW/m2 for 75 s triggered ignition. After that, a small flame was created by the combustion model based on infinitely fast chemistry at 0.005 ≤ x ≤ 0.05 m. The time was reset to 0 after the flame was sufficiently sustained. flameVolume.gif: This file is an animation of fire growth for the large-scale flame spread scenario. gasTemperature.gif: This file is an animation of gas temperature evolution. pyrolysisFront.gif: This file is an animation of progress of the pyrolysis front. The pyrolysis front is defined as Tsolid = 580 K at 0.5 mm from the interface. The contour line shows Tsolid = 580 K. At x > 1 m, the temperature is higher owing to an inert wall with no pyrolysis. qtot.gif: This file is an animation of transient total heat flux. qconv.gif: This file is an animation of transient convective heat flux. qrad.gif: This file is an animation of transient radiative heat flux.

flameSpreadModelling.pdf:本研究中所用火焰蔓延建模的说明文档。本文仅对更新后的子模型进行阐述。聚甲基丙烯酸甲酯(PMMA)墙板尺寸为高1 m、宽0.3 m、厚0.01 m,火焰蔓延至墙板顶部耗时约500秒。以45 kW/m²的入射辐射热通量持续辐照75秒即可触发点火;此后在0.005 ≤ x ≤ 0.05 m范围内,基于无限快化学假设的燃烧模型会生成一小团火焰。待火焰稳定持续后,将计时重置为0。 flameVolume.gif:本文件为大规模火焰蔓延场景下火灾发展过程的动画演示。 gasTemperature.gif:本文件为气体温度演化过程的动画演示。 pyrolysisFront.gif:本文件为热解前沿发展过程的动画演示。热解前沿被定义为距界面0.5 mm处固体温度达到580 K的位置,等值线标注的即为T_solid=580 K的区域。在x>1 m的区域,由于存在无热解的惰性壁面,温度相对更高。 qtot.gif:本文件为瞬态总热通量变化过程的动画演示。 qconv.gif:本文件为瞬态对流热通量变化过程的动画演示。 qrad.gif:本文件为瞬态辐射热通量变化过程的动画演示。
创建时间:
2024-01-23
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