Wind tunnel simulation on anti-erosion performance of brush straw rope of photovoltaic column

doi:10.7522/j.issn.1000-694X.2025.00172

Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (2): 188-200.DOI: 10.7522/j.issn.1000-694X.2025.00172

Wind tunnel simulation on anti-erosion performance of brush straw rope of photovoltaic column

Zhihao Zhu¹(), Jianjun Qu¹, Yinan Yin², Shijun Ma³, Yongsheng Zhao², Qing Li³, Baoshou Shen¹, Jianhua Xiao⁴()

^1.College of Urban and Environmental Sciences，Northwest University，Xi'an 710127，China
^2.Bayanhaote Photovoltaic Branch of Inner Mongolia Huadian Tengger Green Energy Co. ，Ltd. ，Alashan League 750306，Inner Mongolia，China
^3.Beijing Engineering Corporation Limited，Power China，Beijing 100024，China
^4.State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China

Received:2025-09-11 Revised:2025-11-04 Online:2026-03-20 Published:2026-04-13
Contact: Jianhua Xiao

Abstract

Abstract:

In practical photovoltaic （PV） power plant construction， erosion around foundation column poses a serious threat to operational safety. To address this， brush straw rope， which has demonstrated efficacy in sand fixation， was applied to the base of PV column using three protective configurations： one-loop， two-loop， and three-loop winding patterns. Wind tunnel simulations were conducted to compare flow field characteristics， wind-sand flow structure， and erosion-deposition patterns between bare column and the three protective setups， aiming to identify the most effective pattern for windbreak and sand fixation. The results indicate：（1） A high-speed zone occurred near the base （0-5 cm height） upstream of the bare column， resulting in erosion. All protective configurations reduced erosion by inducing extensive low-speed zones and downstream vortex flows. The three-loop winding pattern produced the largest deceleration zone （extending up to 450 cm downstream at wind speeds below 8 m·s^-1）， the smoothest airflow distribution， and the most effective overall wind speed reduction. （2） Under wind speeds of 6， 10， and 14 m·s^-1， sediment flux densities for the bare column increased significantly by factors of 3.4 to 10.0 at certain heights， while all three protective patterns reduced sediment flux density by 83.9% to 99.9%. Sediment flux density profiles for both the empty tunnel and bare column followed an exponential decay model， whereas the protective patterns resulted in more complex distributions， in some cases exhibiting a two-segment structure combining exponential decay and Gaussian distribution. （3） Erosion was observed around the bare column at 6 m·s^-1 and intensified with increasing wind speed. All protective patterns reduced wind-induced erosion， with the three-loop configuration providing the best anti-erosion performance. The three-loop straw rope winding pattern demonstrates superior windbreak and sand fixation effects， showing strong potential for widespread application in PV power plant construction.

Key words: photovoltaic column, brush straw rope, anti-erosion mode, wind tunnel simulation test

CLC Number:

X169

Zhihao Zhu, Jianjun Qu, Yinan Yin, Shijun Ma, Yongsheng Zhao, Qing Li, Baoshou Shen, Jianhua Xiao. Wind tunnel simulation on anti-erosion performance of brush straw rope of photovoltaic column[J]. Journal of Desert Research, 2026, 46(2): 188-200.

Figures/Tables 15

References 32

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风速/(m·s^-1)	集沙仪1			集沙仪2
风速/(m·s^-1)	拟合曲线公式	R²	P	拟合曲线公式	R²	P
6	q_z =0.007·exp(-z/2.846)	0.810	<0.001	q_z =0.036·exp(-z/1.342)	0.902	<0.001
10	q_z =2.205·exp(-z/1.506)	0.999	<0.001	q_z =4.501·exp(-z/1.183)+0.002	0.996	<0.001
14	q_z =9.075·exp(-z/1.994)+0.003	0.990	<0.001	q_z =25.119·exp(-z/1.144)+0.025	0.997	<0.001
18	q_z =40.504·exp(-z/2.542)+0.05	0.991	<0.001	q_z =44.507·exp(-z/2.138)+0.025	0.988	<0.001

风速/(m·s^-1)	集沙仪1			集沙仪2
风速/(m·s^-1)	拟合曲线公式	R²	P	拟合曲线公式	R²	P
6	q_z =0.007·exp(-z/2.846)	0.810	<0.001	q_z =0.036·exp(-z/1.342)	0.902	<0.001
10	q_z =2.205·exp(-z/1.506)	0.999	<0.001	q_z =4.501·exp(-z/1.183)+0.002	0.996	<0.001
14	q_z =9.075·exp(-z/1.994)+0.003	0.990	<0.001	q_z =25.119·exp(-z/1.144)+0.025	0.997	<0.001
18	q_z =40.504·exp(-z/2.542)+0.05	0.991	<0.001	q_z =44.507·exp(-z/2.138)+0.025	0.988	<0.001

模式	风速/(m·s^-1)	高度/cm	集沙仪1			集沙仪2
模式	风速/(m·s^-1)	高度/cm	拟合曲线公式	R²	P	拟合曲线公式	R²	P
空白立柱	6	0~60	q_z =0.046·exp(-z/3.445)	0.954	<0.001	q_z =0.020·exp(-z/7.233)	0.903	<0.001
	10	0~60	q_z =0.867·exp(-z/4.534)+0.009	0.972	<0.001	q_z =0.606·exp(-z/2.478)+0.007	0.983	<0.001
	14	0~60	q_z =4.064·exp(-z/6.037)+0.035	0.988	<0.001	q_z =5.688·exp(-z/1.936)+0.095	0.943	<0.001
	18	0~60	q_z =3.254·exp(-z/7.995)+0.013	0.994	<0.001	q_z =7.106·exp(-z/2.948)+0.148	0.959	<0.001
1圈立柱	10	0~60	—			q_z =0.27·exp(-z/1.337)+0.001	0.969	<0.001
	14	0~20	q_z =0.101·exp(-z/4.147)+0.009	0.889	<0.001	q_z =7.407·exp(-z/0.926)+0.048	0.993	<0.001
	14	20~60	q_z =0.033·exp[-0.5(z-44.075)²/17.383²]+0.006	0.615	<0.001	q_z =7.407·exp(-z/0.926)+0.048	0.993	<0.001
	18	0~60	q_z =1.017·exp(-z/2.158)+0.209	0.934	<0.001	q_z =26.55·exp(-z/1.708)+0.345	0.984	<0.001
2圈立柱	10	0~60	q_z =0.043·exp(-z/1.613)	0.910	<0.001	q_z =0.043·exp(-z/0.919)	0.875	<0.001
	14	0~20	q_z =0.046·exp(-z/3.453)	0.978	<0.001	q_z =0.632·exp(-z/0.687)+0.049	0.971	<0.001
	14	20~60	q_z =0.046·exp(-z/3.453)	0.978	<0.001	q_z =0.137·exp(-z/18.875)	0.810	<0.001
	18	0~20	q_z =1.659·exp(-z/2.096)+0.086	0.987	<0.001	q_z =1.807·exp(-z/1.305)+0.306	0.974	<0.001
	18	20~60	q_z =0.363·exp[-0.5(z-49.58)²/13.473²]+0.066	0.904	<0.001	q_z =-0.297·exp(z/91.397)+0.661	0.929	<0.001
3圈立柱	10	0~60	q_z =0.165·exp(-z/2.48)	0.990	<0.001	q_z =0.034·exp(-z/4.71)	0.751	<0.001
	14	0~20	q_z =1.103·exp(-z/2.438)+0.004	0.982	<0.001	q_z =0.29·exp(-z/2.371)+0.065	0.943	<0.001
	14	20~60	q_z =1.103·exp(-z/2.438)+0.004	0.982	<0.001	q_z =0.143·exp(-z/33.591)-0.028	0.931	<0.001
	18	0~20	q_z =4.654·exp(-z/1.939)+0.116	0.991	<0.001	q_z =2.357·exp(-z/1.311)+0.452	0.985	<0.001
	18	20~60	q_z=-0.263·exp[-0.5(z-27.887)²/15.462²]+0.303	0.945	<0.001	q_z =0.675·exp(-z/35.451)+0.015	0.931	<0.001

模式	风速/(m·s^-1)	高度/cm	集沙仪1			集沙仪2
模式	风速/(m·s^-1)	高度/cm	拟合曲线公式	R²	P	拟合曲线公式	R²	P
空白立柱	6	0~60	q_z =0.046·exp(-z/3.445)	0.954	<0.001	q_z =0.020·exp(-z/7.233)	0.903	<0.001
	10	0~60	q_z =0.867·exp(-z/4.534)+0.009	0.972	<0.001	q_z =0.606·exp(-z/2.478)+0.007	0.983	<0.001
	14	0~60	q_z =4.064·exp(-z/6.037)+0.035	0.988	<0.001	q_z =5.688·exp(-z/1.936)+0.095	0.943	<0.001
	18	0~60	q_z =3.254·exp(-z/7.995)+0.013	0.994	<0.001	q_z =7.106·exp(-z/2.948)+0.148	0.959	<0.001
1圈立柱	10	0~60	—			q_z =0.27·exp(-z/1.337)+0.001	0.969	<0.001
	14	0~20	q_z =0.101·exp(-z/4.147)+0.009	0.889	<0.001	q_z =7.407·exp(-z/0.926)+0.048	0.993	<0.001
	14	20~60	q_z =0.033·exp[-0.5(z-44.075)²/17.383²]+0.006	0.615	<0.001	q_z =7.407·exp(-z/0.926)+0.048	0.993	<0.001
	18	0~60	q_z =1.017·exp(-z/2.158)+0.209	0.934	<0.001	q_z =26.55·exp(-z/1.708)+0.345	0.984	<0.001
2圈立柱	10	0~60	q_z =0.043·exp(-z/1.613)	0.910	<0.001	q_z =0.043·exp(-z/0.919)	0.875	<0.001
	14	0~20	q_z =0.046·exp(-z/3.453)	0.978	<0.001	q_z =0.632·exp(-z/0.687)+0.049	0.971	<0.001
	14	20~60	q_z =0.046·exp(-z/3.453)	0.978	<0.001	q_z =0.137·exp(-z/18.875)	0.810	<0.001
	18	0~20	q_z =1.659·exp(-z/2.096)+0.086	0.987	<0.001	q_z =1.807·exp(-z/1.305)+0.306	0.974	<0.001
	18	20~60	q_z =0.363·exp[-0.5(z-49.58)²/13.473²]+0.066	0.904	<0.001	q_z =-0.297·exp(z/91.397)+0.661	0.929	<0.001
3圈立柱	10	0~60	q_z =0.165·exp(-z/2.48)	0.990	<0.001	q_z =0.034·exp(-z/4.71)	0.751	<0.001
	14	0~20	q_z =1.103·exp(-z/2.438)+0.004	0.982	<0.001	q_z =0.29·exp(-z/2.371)+0.065	0.943	<0.001
	14	20~60	q_z =1.103·exp(-z/2.438)+0.004	0.982	<0.001	q_z =0.143·exp(-z/33.591)-0.028	0.931	<0.001
	18	0~20	q_z =4.654·exp(-z/1.939)+0.116	0.991	<0.001	q_z =2.357·exp(-z/1.311)+0.452	0.985	<0.001
	18	20~60	q_z=-0.263·exp[-0.5(z-27.887)²/15.462²]+0.303	0.945	<0.001	q_z =0.675·exp(-z/35.451)+0.015	0.931	<0.001

Wind tunnel simulation on anti-erosion performance of brush straw rope of photovoltaic column

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