环境风洞红外消冰过程模拟研究*

doi:10.16265/j.cnki.issn1003-3033.2021.10.023

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (10): 167-173.doi: 10.16265/j.cnki.issn1003-3033.2021.10.023

环境风洞红外消冰过程模拟研究^*

周帆^1,2 助理研究员, 武金模^**1,2 高级工程师, 陆彭飞^1,2 工程师, 林虹霞^1,2 工程师

1 清华大学合肥公共安全研究院,安徽合肥 230601;
2 灾害环境人员安全安徽省重点实验室,安徽合肥 230601

收稿日期:2021-07-05 修回日期:2021-09-02 出版日期:2021-10-28 发布日期:2022-04-28
通讯作者: ** 武金模(1983—)男,安徽合肥人,博士,高级工程师,主要从事环境风洞方面的研究工作。E-mail:wujinmo@gsafety.com。
作者简介:周帆 (1992—),男,安徽合肥人,博士,助理研究员,主要从事太阳能光热光电综合利用方面的研究。E-mail:zhoufan2@mail.ustc.edu.cn。
基金资助:
国家重点研发计划项目(2017YFC0803300,2017YFC0805000);安徽省自然科学基金资助(1908085ME165,2108085QE242);安徽省中央引导地方发展资金资助(803214271050)。

Numerical study on infrared deicing process in climatic wind tunnels

ZHOU Fan^1,2, WU Jinmo^1,2, LU Pengfei^1,2, LIN Hongxia^1,2

1 Hefei Institute for Public Research, Tsinghua University, Hefei Anhui 230601, China;
2 Anhui Province Key Laboratory of Human Safety, Hefei Anhui 230601, China

Received:2021-07-05 Revised:2021-09-02 Online:2021-10-28 Published:2022-04-28

摘要/Abstract

摘要： 为快速消除环境风洞内部地面积冰,提出一种利用风洞内部辐照模拟系统进行红外消冰的除冰方法;通过构建试验段辐照强度分布计算模型和三维非稳态相界面追踪相变过程数理模型,模拟研究环境风洞在红外消冰工况下的地面冰层融化过程。结果表明:红外消冰工况下积冰完全融化时间为2~6 h,冰层自上而下、自边缘往中心发生融化,且可在融化过程中形成倒梯形的冰型,有利于在红外消冰的过程中加入机械除冰,提高除冰效率。冰层厚度每增加10 mm,积冰层完全融化时间就推迟约1.2 h,较大的积冰厚度会使融冰过程中冰型的倒梯形性质变得更明显。

关键词: 环境风洞, 红外消冰, 地面积冰, 融冰过程, 相界面

Abstract: In order to solve residence ground freezing problem in climatic wind tunnels, an infrared deicing method was proposed by utilizing inner radiation simulation system. A calculation model of radiation distribution and a mathematical model of three-dimensional unsteady phase-change process were established to study melting process of ground ice layer in climatic wind tunnels. The results show that the complete melting time of ground ice under infrared deicing conditions is 2-6 hours. The ice layer melts from top to bottom, from edges to the center, and an inverted trapezoidal ice shape can be obtained in melting process, which enables addition of mechanical deicing during infrared deicing to improve deicing efficiency. Moreover, the melting time of ice layer will reduce by 1.2 hours for each increase of thickness by 10 mm. The greater thickness leads to more significant inverted trapezoid ice shape.

Key words: climatic wind tunnel, infrared deicing, ground freezing, melting process, phase interface

中图分类号:

X915.5

周帆, 武金模, 陆彭飞工程师, 林虹霞. 环境风洞红外消冰过程模拟研究^*[J]. 中国安全科学学报, 2021, 31(10): 167-173.

ZHOU Fan, WU Jinmo, LU Pengfei, LIN Hongxia. Numerical study on infrared deicing process in climatic wind tunnels[J]. China Safety Science Journal, 2021, 31(10): 167-173.

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环境风洞红外消冰过程模拟研究^*

Numerical study on infrared deicing process in climatic wind tunnels

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