Numerical simulation of terrain and buildings-triggered low-level wind shear around Zhuhai Airport

YANG Qiaolan; JIANG Xiaowei; XIA Dong; HUANG Zhaoliang; LI Zhibiao; DENG Lijie

doi:10.13471/j.cnki.acta.snus.ZR20230020

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Numerical simulation of terrain and buildings-triggered low-level wind shear around Zhuhai Airport

Research articles | 更新时间：2024-09-29

- Numerical simulation of terrain and buildings-triggered low-level wind shear around Zhuhai Airport
- Acta Scientiarum Naturalium Universitatis Sunyatseni Vol. 63, Issue 4, Pages: 47-60(2024)
- 作者机构：
  
  1.珠海市公共气象服务中心，广东珠海 519000
  2.珠澳气象创新与应用研究中心，广东珠海 519000
- 作者简介：
- 基金信息：
- DOI：10.13471/j.cnki.acta.snus.ZR20230020
  CLC： P49
- Published：25 July 2024，
  
  Published Online：24 April 2024，
  
  Received：21 November 2023，
  
  Accepted：11 January 2024
- 稿件说明：
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杨巧兰,蒋晓威,夏冬等.地形和建筑触发珠海机场低空风切变数值模拟[J].中山大学学报(自然科学版)(中英文),2024,63(04):47-60.

YANG Qiaolan,JIANG Xiaowei,XIA Dong,et al.Numerical simulation of terrain and buildings-triggered low-level wind shear around Zhuhai Airport[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(04):47-60.
杨巧兰,蒋晓威,夏冬等.地形和建筑触发珠海机场低空风切变数值模拟[J].中山大学学报(自然科学版)(中英文),2024,63(04):47-60. DOI： 10.13471/j.cnki.acta.snus.ZR20230020.

YANG Qiaolan,JIANG Xiaowei,XIA Dong,et al.Numerical simulation of terrain and buildings-triggered low-level wind shear around Zhuhai Airport[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2024,63(04):47-60. DOI： 10.13471/j.cnki.acta.snus.ZR20230020.

摘要

为了分析复杂地形和建筑物对珠海机场风场的影响及是否会诱发低空风切变，利用流体力学（CFD）软件FLUENT对珠海机场周围地形和建筑物进行风环境数值模拟，分析北、西北偏北和东北风背景下机场上空低空风切变的易发区。结果表明：1） 3个风向下地形和建筑物在机场跑道引起的风速波动均出现在500 m高度以下，且均主要出现在沿着跑道的方向；2）吹北风和西北偏北风时，风切变均发生在100~500 m高度，主要由地形引起；3）吹北风时，在跑道南端以外（距端口0.0~1.4 km区间）发生低空风切变的概率最大，其次在跑道南端附近（跑道内距端口0.2~1.5 km区间），吹西北偏北风时，在跑道南端附近（向外距端口0.5 km至向内距端口1.1 km区间）发生低空风切变的概率最大，其次在跑道中点附近（0.3 km区间）；4）吹东北风时，机场跑道风切变发生概率低。研究结果可为珠海机场低空风切变的探测和预警提供基础，为风切变的防范提供依据，对今后的机场选址及航空安全气象风险评估有参考价值。

Abstract

To analyze the influence of complex terrain and buildings on the wind field of Zhuhai Airport and whether they will induce low-level wind shear

the Computational Fluid Dynamics (CFD) code FLUENT was used to simulate the wind environment around the terrain and buildings of Zhuhai Airport

and the prone airspace of low-level wind shear at the airport under the background of north(N)

north-northwest(NNW) and northeast(NE) wind were analyzed. The results show that: 1) The wind speed fluctuations caused by terrain and buildings at the airport runway under the three wind directions all appear below the height of 500 m

and all of them mainly appear along the runway. 2) When the wind direction is N or NNW

the wind shear appears at the height of 100-500 m and is mainly induced by the terrain. 3) When the wind direction is N

the maximum probability of low-level wind shear is outside the southern end of the runway (in the area of 0.5-1.4 km from the southern end) and the second is near the southern end (0.2-1.5 km from the southern end within the runway); when the wind direction is NNW

the maximum probability of low-level wind shear is near the south end of the runway (0.5 km outward from the port to 1.1 km inward from the port) and the second is near the midpoint of the runway about 0.3 km. 4) When the wind direction is NE

the probability of low-level wind shear on the airport runway is low. The research results provide a basis for the detection and early warning of low-level wind shear at Zhuhai Airport to prevent wind shear and have significance for airport location and aviation safety meteorological risk assessment in the future.

关键词

低空风切变CFD模拟复杂地形建筑机场跑道

Keywords

low-level wind shearCFD simulationcomplex terrainbuildingsairport runway

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