Numerical simulation on the wind blocking and speed increasing effect of trough solar arrays

doi:10.3969/j.issn.2097-0706.2024.06.001

Abstract

Abstract:

Taking the Simple solver of the open source computational fluid dynamics （CFD） software， OpenFOAM， to numerically simulate a flow field， the wind blocking effect of a windbreak under a wind speed of 5.00 m/s is studied. The windbreak is composed of trough solar arrays. The effects of the barrier at six different heights and with three different distances （30， 60， and 90 m） from its leeward side to the flow field on the overall velocity of the flow field are analyzed. It is found that there is obvious partitioning in the blocking effect. When the airflow passes through the windbreak wall， the flow velocity attenuates significantly at a position lower than the height of the wall， and it accelerates at a position higher than the wall. There is a velocity attenuation area behind the wall， whose size is highly positively correlated with the height and distance of the wall. When the distance of the leeward side gets farther， the flow velocity at a position higher than the wall gets slower and that at a position lower than the wall gets faster. The wind velocity gets stable with the extension of the distance from the leeward side to the flow field.

Key words: trough solar array, windbreak, wind blocking effect, velocity attenuation area, OpenFOAM, numerical simulation

CLC Number:

TK315

ZHANG Lidong, LI Pei, JIANG Tieliu, LI Qinwei, ZHANG Lei, XU Feng, MENG Xin. Numerical simulation on the wind blocking and speed increasing effect of trough solar arrays[J]. Integrated Intelligent Energy, 2024, 46(6): 1-7.

Figures/Tables 9

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References 20

[1]	郝庆福, 刘延泉, 王坤. 风电厂风能资源分析与评价[J]. 华电技术, 2010, 32(8):76-79.
	HAO Qingfu, LIU Yanquan, WANG Kun. Analysis and evaluation of wind energy resource of wind power plant[J]. Huadian Technology, 2010, 32(8): 76-79.
[2]	李宏剑. 挡风墙挡风抑尘效果数值模拟研究[D]. 杭州: 浙江大学, 2007.
	LI Hongjian. Numerical simulation study on windbreak dust suppression effect of windbreak wall[D]. Hangzhou: Zhejiang University, 2007.
[3]	田美荣, 傅馨逸, 杨伟超, 等. 挡风墙设计及其在呼伦贝尔沙地治理中的应用[J]. 环境工程技术学报, 2021, 11(5):970-975.
	TIAN Meirong, FU Xinyi, YANG Weichao, et al. Windbreak design and its application in Hulunbeier sand management[J]. Journal of Environmental Engineering Technology, 2021, 11(5): 970-975.
[4]	张大千, 吴康宁. 挡风墙对近地面光伏板风压的影响研究[J]. 沈阳航空航天大学学报, 2020, 37(3):12-23.
	ZHANG Daqian, WU Kangning. Research on the effect of windbreak on wind pressure of near‑surface photovoltaic panels[J]. Journal of Shenyang University of Aeronautics and Astronautics, 2020, 37(3): 12-23.
[5]	罗智慧, 龙新峰. 槽式太阳能热发电技术研究现状与发展[J]. 电力设备, 2006, 7(11): 29-32.
	LUO Zhihui, LONG Xinfeng. Research status and development of trough solar thermal power generation technology[J]. Power Equipment, 2006, 7(11): 29-32.
[6]	孙建, 塔拉, 布仁, 等. 槽式太阳能集热与燃煤发电机组联合运行系统构建[J]. 内蒙古电力技术, 2020, 38(2):57-61.
	SUN Jian, TA La, BU Ren, et al. Construction of joint operation system of trough solar thermal collector and coalfired generating unit[J]. Inner Mongolia Power Technology, 2020, 38(2): 57-61.
[7]	WANG Z W, DONG G D, LI Z B, et al. Statistics of wind farm wakes for different layouts and ground roughness[J]. Boundary‑Layer Meteorol, 2023, 188: 285-320.
[8]	ZHANG H, GE M W, LIU Y Q, et al. A new coupled model for the equivalent roughness heights of wind farms[J]. Renewable Energy, 2021, 171: 34-46.
[9]	KETHAVATH N N, MONDAL K, GHAISAS N S. Large‑eddy simulation and analytical modeling study of the wake of a wind turbine behind an abrupt rough‑to‑smooth surface roughness transition[J]. Physics of Fluids, 2022, 34(12): 125117.
[10]	TOBIN N, CHAMORRO L P. Windbreak effects within infinite wind farms[J]. Energies, 2017, 10(8):1140.
[11]	LIU L Q, STEVENS R J A M. Enhanced wind-farm performance using windbreaks[J]. Physical Review Fluids, 2021, 6(7): 074611.
[12]	MAHGOUB A O, GHANI S. Numerical and experimental investigation of utilizing the porous media model for windbreaks CFD simulation[J]. Sustainable Cities and Society, 2021, 65: 102648.
[13]	LYU J W, WANG C M, MASON M S. Review of models for predicting wind characteristics behind windbreaks[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2020, 199:104117.
[14]	张十权, 李鹏俊, 李铭轩, 等. 一种挡风抑尘墙及光煤互补发电系统:CN202222841100. X[P]. 2023-04-25[2023-09-08].
[15]	李家乐, 赵文举, 严正. 基于CFD的挡风墙防风效果仿真[J]. 排灌机械工程学报, 2020, 38(6):620-625.
	LI Jiale, ZHAO Wenju, YAN Zheng. Simulation of wind protection effect of windbreak wall based on CFD[J]. Journal of Drainage and Irrigation Machinery Engineering, 2020, 38(6): 620-625.
[16]	周书华. 防风墙可提高风电场的功率[J]. 物理, 2021, 50(9):633.
	ZHOU Shuhua. Windbreaks can increase the power of wind farms[J]. Physics, 2021, 50(9): 633.
[17]	ZHUO C X, TONG X, HAO B E. Feasibility analysis using a porous‑media model to simulate the wind protection effect of windbreak forests[J]. Land Degradation & Development, 2022, 34(1): 207-220.
[18]	LI Y L, LI Z B, ZHOU Z D, et al. Large‑eddy simulation of wind turbine wakes in forest terrain[J]. Sustainability, 2023, 15(6): 5139.
[19]	NATRAJ, RAO B N, REDDY K S. Wind load and structural analysis for standalone solar parabolic trough collector[J]. Renewable Energy, 2021, 173: 688-703.
[20]	MIER-T0RRECILLA M, HERRERA E M, DOBLARE M. Numerical calculation of wind loads over solar collectors[J]. Energy Procedia, 2014, 49: 163-173.

编号	距入风口距离/m	高度/m	宽度/m	倾角/(°)	板长/m	弦长/m
A	40	3.5	42	60	6	4
B	40	8.0	42	60	6	4
C	40	12.5	42	60	6	4
D	40	17.0	42	60	6	4
E	40	21.5	42	60	6	4
F	40	26.0	42	60	6	4

编号	Ⅱ区域网格尺寸/m	网格数/万
1	1.5	15.98
2	1.0	52.75
3	0.5	407.24