| 甲烷-空气的二次爆炸流场实验研究 |
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| 引用本文： | 姜孝海,范宝春,叶经方.甲烷-空气的二次爆炸流场实验研究[J].实验流体力学,2005,19(2):14-19. |
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| 作者姓名： | 姜孝海 范宝春 叶经方 |
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| 作者单位： | 南京理工大学瞬态物理国家重点实验室,南京,210094;南京理工大学瞬态物理国家重点实验室,南京,210094;南京理工大学瞬态物理国家重点实验室,南京,210094 |
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| 基金项目： | 国家重点基础研究专项经费资助(2001CB409603) |
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| 摘 要： | 为了揭示二次爆炸的产生机制及其影响因素，采用带导管的柱形泄爆装置对向空气中泄爆的过程进行了实验。实验获得了在不同泄爆条件下清晰的时序阴影照片和外流场测点的压力历程。根据实验结果分析了二次爆炸的产生条件，并详细讨论了二次爆炸影响因素在不同泄爆条件的变化，从而分析和解释了二次爆炸强度在相应泄爆条件下的变化规律。
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| 关 键 词： | 泄爆 二次爆炸 影响因素 压力测量 阴影法 |
| 文章编号： | 1672-9897(2005)02-0014-06 |
| 修稿时间： | 2004年5月8日 |
Investigation of flow field of methane-air the secondary explosion |
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| JIANG Xiao-hai,FAN Bao-chun,YE Jing-fang.Investigation of flow field of methane-air the secondary explosion[J].Experiments and Measur in Fluid Mechanics,2005,19(2):14-19. |
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| Authors: | JIANG Xiao-hai FAN Bao-chun YE Jing-fang |
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| Abstract: | The purpose of this paper is to demonstrate the generation mechanism of the secondary explosion and its influence factors. The experiments of explosion venting to the air were performed in a cylindrical vented vessel connected to a duct. The clear time sequential shadowgraphs and pressure-time histories of the external flow field were obtained. Based on those experimental results, the conditions of the secondary explosion generated were analyzed and its variations of influence factors under different venting conditions were also discussed in detail. And then the variation of the intensity of the secondary explosion wave under the corresponding venting conditions was analyzed. |
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| Keywords: | vented explosion secondary explosion influence factors pressure measurement shadow method |
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