UC知道毕业翻译
来源：百度知道 编辑：UC知道 时间：2024/06/23 18:24:25
Abstract Experimental investigations were performed to examine the effects of flame interactions with different multiple obstacles within chambers of different L/D ratios. The basic chamber consists of a rectangular box, 200mm in height, with a 700mm×700mm cross-section and a large
top-venting area of 700mm×210 mm. The chambers were designed at 200mm height intervals, and the maximum height of the chambers was 1000 mm. Five chambers were employed to examine the flame interaction with multiple bars in each chamber. Three different multiple obstacles were used: square, triangular and circular cross-sections with blockage ratios of 30% and 43%. The results of flame speed and pressures of different
L/D ratios were discussed. The flame speeds and pressures associated with the obstacles showed little significant difference in chambers with the L/D ratios of 0.29 and 0.57. However, chambers over a ratio of 0.86 became sensitive to the obstacle types, the L/D ratio and the blockage r
top-venting area of 700mm×210 mm. The chambers were designed at 200mm height intervals, and the maximum height of the chambers was 1000 mm. Five chambers were employed to examine the flame interaction with multiple bars in each chamber. Three different multiple obstacles were used: square, triangular and circular cross-sections with blockage ratios of 30% and 43%. The results of flame speed and pressures of different
L/D ratios were discussed. The flame speeds and pressures associated with the obstacles showed little significant difference in chambers with the L/D ratios of 0.29 and 0.57. However, chambers over a ratio of 0.86 became sensitive to the obstacle types, the L/D ratio and the blockage r
摘要实验研究进行审查的影响，火焰相互作用不同多重障碍的商会不同L /数的比率。基本分庭由一个长方形的方块中， 200毫米的高度，以700毫米× 700毫米截面和一个大
前通风面积七零零毫米× 210毫米。各分庭的设计高度在200毫米间隔，最大高度商会是1000毫米。 5分庭被雇用审查火焰与多个酒吧在每个分庭。三种不同的多重障碍被用来：方形，三角形和圆截面与阻塞的比率为30 ％和43 ％ 。
结果火焰速度和压力的不同
L /数的比率进行了讨论。火焰速度和压力的障碍几乎没有显着差异，与商会的L /数比率为0.29和0.57 。不过，分庭的比例为0.86成为敏感障碍类型的L / D值和淤塞比率。
最高overpressures观察三角障碍而发生的最低overpressures的圆柱形障碍。火焰的发展是与发展的压力，各分庭有L /数比率0.86-1.43 。
问题补充：火焰之间的传播和障碍的各种
几何形状的分庭有大量篇幅对长径比
（长/ D ）的，如在船只和圆柱管其中L是
长度缸沿方向传播火焰，
和D是直径的圆柱体。与测量
长方体舱室， L的高度商会沿
方向的火焰传播，和D的宽度
分庭[ 1 ] 。
了裁判的判罚。 [ 2-10 ]大L /数指的增加，火焰
高速和超到更高的水平产生的湍流
未来的传播火焰面的气体相互作用
障碍。众所周知的互动发展
流动的障碍是可以皱纹表面的蔓延
火焰面，增加火焰表面积，从而越来越多