摘要
通过实验和数值模拟研究了细水雾抑制扩散火焰的作用过程,探讨了细水雾抑制扩散火焰的机理和规律。细水雾抑制扩散火焰主要是通过水雾的蒸发潜热吸热、热容吸热、稀释氧气等作用,达到控制和扑灭火灾的目的。在实验的基础上,进行了一维数值模拟,其模拟结果与实验数据的物理趋势基本一致,验证了实验结果的合理性。
The process of water mist on diffusion flame has been experimentally studied and numerically simulated. And the mechanism and rules of water mist suppression are explored. The water mist suppresses diffusion flame through heat absorption due to the latent of vaporization of water mist, the heat absorption due to the heat capacity and the effect of dilution of oxygen, which slow down the reaction and fire spread. The one-dimensioned model based on experiments is carried out. The simulated results are identical with physics trends of the experiment data and validate the rationality of the results.
出处
《消防科学与技术》
CAS
2006年第3期307-309,共3页
Fire Science and Technology
基金
国家自然科学基金资助项目(50476033)
河南省杰出人才创新基金项目(0421000800)
河南理工大学自然科学基金资助项目(646102)
关键词
模型
细水雾
扩散火焰
数值模拟
model
water mist
diffusion flame
numerical simulation