Effect of covering shelter on infrared radiation characteristics of helicopter infrared radiation suppressor

WANG Tong-hui; WANG Xian-wei; ZHANG Jing-zhou; SHAN Yong

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Effect of covering shelter on infrared radiation characteristics of helicopter infrared radiation suppressor

更新时间：2026-07-07

- Effect of covering shelter on infrared radiation characteristics of helicopter infrared radiation suppressor
- Vol. 24, Issue 7, (2009)
- 作者机构：
  
  1. 南京航空航天大学能源与动力学院,南京,210016
  2. 中国直升机设计研究所,景德镇,333001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009
- 稿件说明：
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WANG Tong-hui, WANG Xian-wei, ZHANG Jing-zhou, et al. Effect of covering shelter on infrared radiation characteristics of helicopter infrared radiation suppressor[J]. 2009, 24(7).
DOI：

WANG Tong-hui, WANG Xian-wei, ZHANG Jing-zhou, et al. Effect of covering shelter on infrared radiation characteristics of helicopter infrared radiation suppressor[J]. 2009, 24(7). DOI：

摘要

运用CFD/IR(computational fluid dynamics/infrared)数值模拟的方法

研究了直升机红外抑制器遮挡罩不同遮挡间距对红外辐射特性的影响.计算结果表明:相对未加装遮挡罩的红外抑制器

加装遮挡罩后红外辐射强度在水平面和铅垂面下方可以削弱90%以上;随着遮挡间距的增加

遮挡罩外露壁面的温度呈现单调降低的趋势;在研究的三种遮挡间距(5

35 mm)下

10 mm遮挡间距的红外抑制效果更为优越.

Abstract

Based on numerical calculation of computational fluid dynamics/infrared(CFD/IR)

the effects of the covering shelter fixed onto the curved mixing duct on the infrared radiation characteristics of the helicopter infrared radiation suppressor were revealed.The results show that: the infrared radiation intensity of the IR suppressor with covering shelter could be reduced more than 90% in the horizontal plane or the bottom of the vertical plane

if compared with that without covering shelter.With the increase of the slot distance between the mixing duct and the covering shelter

the surface temperature of the covering shelter is decreased monotonously.For three slot distances(5

10 mm and 35 mm) in the present study

the infrared radiation suppressing effect seems more advantageous when the slot distance is 10 mm.

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Related Institution

School of Astronautics, Beijing University of Aeronautics and Astronautics

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南京航空航天大学能源与动力学院

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