作者：蒋晓刚, 迟卫, 金良安, 苑志江

作者单位：海军大连舰艇学院航海系, 辽宁 大连 116018

关键词：喷射火; 脱火效能; 入射角度; 双向人工扰流; 火焰倾角

摘要：

为研究入射角度对脱火效能的影响规律,借助THORNTON模型和火焰倾角计算公式对其进行理论分析,并设计专门的实验装置具体研究双向人工扰流入射角度与脱火效能之间的关系。结果表明:在水平面和竖直面两个不同平面内,脱火效能均随着入射角度的改变呈现明显的变化,水平面两扰流夹角120、竖直面入射对称角30时的脱火效能最大。合理设置入射角度,有助于提高双向人工扰流的脱火效能。

Analysis of relationship between incidence angle and lift-off efficiency

JIANG Xiao-gang, CHI Wei, JIN Liang-an, YUAN Zhi-jiang

Department of Navigation, Dalian Naval Academy, Dalian 116018, China

Abstract: In order to research the relationship between incidence angle and lift-off efficiency, the effect of incidence angle for lift-off efficiency was analyzed on the foundation of THORNTON model and calculation method for oblique angle of ejecting flame. Relations between TDIF (two-direction man-made interfering jet flows) and lift-off efficiency were researched by experiments with special designed experimental device. The results show that on two different planes, the lift-off efficiency was greatly affected by incidence angle. When the interfering jet flows angle of horizontal plane was 120 degree or the incidence angle of vertical plane was 30 degree, the lift-off efficiency was the largest. It is favorable to increase the reliability of TDIF when the incidence angle is set up reasonably.

Keywords: jet fire; lift-off efficiency; incidence angle; TDIF; oblique angle of ejecting flame

2014, 40(1): 128-132  收稿日期: 2013-2-5;收到修改稿日期: 2013-3-26

基金项目: 

作者简介: 蒋晓刚(1988-),男,河南许昌市人,博士研究生,主要从事舰船安全与防护技术研究。

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