| 向昕,彭小勇,刘佳勇,叶美宏.翼型捕风器在地下空间通风中的应用研究[J].南华大学学报(自然科学版),2024,(3):7~14.[XIANG Xin,PENG Xiaoyong,LIU Jiayong,YE Meihong.Research on the Application of Airfoil Catcher in Underground Warehouse Ventilation[J].Journal of University of South China(Science and Technology),2024,(3):7~14.] |
| 翼型捕风器在地下空间通风中的应用研究 |
| Research on the Application of Airfoil Catcher in Underground Warehouse Ventilation |
| 投稿时间：2024-01-15 |
| DOI： |
| 中文关键词: 自然通风 捕风器 科恩达效应 数值模拟 |
| 英文关键词:natural ventilation wind catchers the Coenda Effect numerical simulation |
| 基金项目:国家自然科学基金项目(230XJZ105) |
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| 中文摘要: |
| 以S1210型翼型为基础,设计了一种基于科恩达效应的捕风器,采用数值模拟的方法,在自然风速为3 m/s的情况下,对一尺寸为30 m×20 m×3.5 m的地下仓库实际通风效果进行了研究。研究结果表明:在不同捕风器高度下,室内通风换气次数均在1次以上,且随着捕风器高度提升,风管进出口的速度值不断增大、负压值不断减小,进出口压力差最大为1.3 Pa；翼型壁面上形成的负压区最下负压值为－14 Pa,随着捕风器高度的提升,通风量也随之增大,但由于同时增大了圆管内的摩擦阻力,通风量的增长速率不断减小；增加捕风器高度对增大通风量有作用且随高度增加作用不断减小；自然风速为1 m/s~5 m/s的工况下,当自然风速大于等于3 m/s时,采用两个翼型捕风器的地下空间通风换气次数可达到1.5次/h以上。 |
| 英文摘要: |
| Based on the S1210 airfoil, a wind catcher based on the Coenda effect was designed, and the actual ventilation effect of an underground space with a size of 30 m×20 m×3.5 m was studied under the condition of natural wind speed of 3 m/s, and the results showed that the number of indoor ventilation was more than 1 time under different trap heights, and with the increase of the height of the trap, the velocity value of the air duct inlet and outlet increased and the negative pressure value decreased. The maximum pressure difference between the inlet and outlet is 1.3 Pa, the lowest negative pressure value of the negative pressure area formed on the airfoil wall is －14 Pa, and the ventilation volume increases with the increase of the height of the wind catcher, but the growth rate of the ventilation volume decreases continuously due to the increase of friction resistance in the round pipe at the same time. Increasing the height of the wind catcher has an effect on increasing the ventilation capacity,and the effect decreases with the increase of the height. The working condition with the natural wind speed of 1 m/s~5 m/s is studied,and the results show that when the natural wind speed is more than 3 m/s,the ventilation rate of underground space with two airfoils can reach 1.5 times/h. |
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