斜插板式沙障插板倾角影响下风沙流特征的数值模拟

丁泊淞; 高丽; 程建军; 陈柏羽

doi:10.13961/j.cnki.stbctb.2021.01.019

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斜插板式沙障插板倾角影响下风沙流特征的数值模拟

试验与调查研究

- 斜插板式沙障插板倾角影响下风沙流特征的数值模拟
- Numerical Simulation of Wind-Sand Flow Characteristics of Inclined Inserting-Type Sand Fence Under Influence of Inserting Plate Angle
- 水土保持通报 2021年41卷第1期页码：132-137
- 作者机构：
  
  石河子大学水利建筑工程学院,新疆,石河子,832003
- 作者简介：
- 基金信息：
  
  新疆生产建设兵团中青年科技创新领军人才计划项目“风沙防治基础理论与工程技术方法”（2019CB023）;新疆生产建设兵团重大科技计划项目“南疆陆地交通智慧建养成套技术与装备研究”（2020AA002）。
- DOI：10.13961/j.cnki.stbctb.2021.01.019
  中图分类号： U216.41
- 纸质出版：2021
- 稿件说明：
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丁泊淞, 高丽, 程建军, 等. 斜插板式沙障插板倾角影响下风沙流特征的数值模拟[J]. 水土保持通报, 2021,41(1):132-137.

Ding Bosong, Gao Li, CHENG Jianjun, et al. Numerical Simulation of Wind-Sand Flow Characteristics of Inclined Inserting-Type Sand Fence Under Influence of Inserting Plate Angle[J]. Bulletin of Soiland Water Conservation, 2021, 41(1): 132-137.
丁泊淞, 高丽, 程建军, 等. 斜插板式沙障插板倾角影响下风沙流特征的数值模拟[J]. 水土保持通报, 2021,41(1):132-137. DOI： 10.13961/j.cnki.stbctb.2021.01.019.

Ding Bosong, Gao Li, CHENG Jianjun, et al. Numerical Simulation of Wind-Sand Flow Characteristics of Inclined Inserting-Type Sand Fence Under Influence of Inserting Plate Angle[J]. Bulletin of Soiland Water Conservation, 2021, 41(1): 132-137. DOI： 10.13961/j.cnki.stbctb.2021.01.019.

摘要

[目的] 优化既有沙障的结构形式，以发挥最大挡沙功效，揭示铁路沿线斜插板式沙障的风沙流特征和规律，为风沙灾害防治提供相关的设计参考和科学依据。[方法] 基于欧拉双流体非定常模型对具有不同插板倾角（15°，30°，45°和60°）但孔隙率均为30%的斜插板式沙障进行数值模拟。[结果] ①随插板倾角逐渐增大，沙障迎风侧减速区范围无明显变化，上方加速区和背风侧涡流区范围逐渐增大，迎风侧气流向下弯曲运动的趋势逐渐增强，背风侧向上运动的气流与水平风向夹角逐渐增大。②不同风速下，4种斜插板式沙障周围风速均呈“U”型分布，对同一风速而言，背风侧涡流区内风速极小值与插板倾角呈负相关。[结论] 随插板倾角逐渐增大，沙障迎风侧积沙量逐渐增多，背风侧整体积沙量逐渐减少但背风侧1 H范围内积沙量逐渐增多，背风侧主要积沙分布范围与沙障之间的距离逐渐增大。

Abstract

[Objective] The structure form of existing sand barriers was optimized to maximize the sand retention effect

the characteristics of wind and sand flow of inclined inserting-type sand fences along a railway were studied in order to provide a relevant design reference and scientific basis for the prevention and control of wind and sand disasters.[Methods] Based on the Eulerian two-fluid unsteady model

numerical simulations were conducted on inclined inserting-type sand fences with different inclination angles of the insert plate (15°

30°

45°

and 60°) but the same porosity (30%).[Results] ① The inclination angle of the insert plate gradually increased

the range of the windward side deceleration zone did not change significantly

and the range of the upper acceleration zone and the leeward side vortex zone gradually increased. The tendency of the windward side airflow to bend downward gradually increased

and the angle between the airflow moving upward on the leeward side and the horizontal wind direction gradually increased. ② Under different wind speeds

the wind speeds around the inclined inserting-type sand fence were U-shaped curves. For the same wind speed

the minimum wind speed in the leeward vortex area was negatively correlated with the inclination angle of the plate.[Conclusion] As the inclination angle of the inserting plate increased gradually

the sand on the windward side gradually increased

and the sand on the leeward side gradually decreased. However

the sand in the 1 H range on the leeward side gradually increased. The distance between the main sand distribution on the leeward side and the sand barrier gradually increased.

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references

张春民,王玮强,李文添,等.基于面板数据的兰新高铁区域经济特性分析[J].铁道科学与工程学报,2017,14(1):12-18.

钱征宇.西北地区铁路大风灾害及其防治对策[J].中国铁路,2009(3):1-4.

孟祥连,李鲲,谢胜波,等.兰新高铁大风区风况特征及防风工程设计分区[J].中国沙漠,2018,38(5):972-977.

王学楷.兰新铁路挡风墙的设计与施工[J].路基工程,2012(5):180-182.

葛盛昌,蒋富强.兰新铁路强风地区风沙成因及挡风墙防风效果分析[J].铁道工程学报,2009,26(5):1-4.

葛春庚,石龙,李凯崇.兰新二线强风地区防沙措施效益评价[J].铁道标准设计,2015,59(9):37-40.

李凯崇,石龙,孔令伟,等.兰新高铁沿线不同挡沙墙防护效果评价[J].铁道工程学报,2017,34(3):11-14,21.

张乘波.兰新高速铁路风沙区段挡沙墙设计参数试验研究[J].铁道标准设计,2016,60(9):4-8.

辛文栋.风区高速铁路路基沙害防治研究与设计[J].铁道工程学报,2015,32(10):61-65,72.

郝晓杰,熊治文,蒋富强,等.青藏铁路不同防沙栅栏的布设位置研究[J].铁道标准设计,2012,56(4):16-20.

王国联,张道金.临策铁路天鹅湖至额济纳段线路及防沙工程方案研究[J].铁道标准设计,2011,55(4):1-5.

石龙,蒋富强.斜插板挡沙墙设计参数优化数值模拟[J].中国沙漠,2014,34(3):666-673.

李凯崇,刘贺业,蒋富强,等.斜插板挡沙墙风沙防治现场试验研究[J].中国铁道科学,2013,34(2):46-51.

Cheng Jianjun, Lei Jiaqiang, Li Shengyu, et al. Disturbance of the inclined inserting-type sand fence to wind-sand flow fields and its sand control characteristics[J]. Aeolian Research, 2016,21:139-150.

蒋富强,李凯崇,薛春晓,等.斜插板式挡沙墙[P].甘肃:CN102505643A,2012-06-20.

Tennekes H. The logarithmic wind profile[J]. Journal of the Atmospheric Sciences, 1973,30(2):234-238.

Bauer B O, Houser C A, Nickling W G. Analysis of velocity profile measurements from wind-tunnel experiments with saltation[J]. Geomorphology, 2004,59(1/2/3/4):81-98.

Jiang Hong, Dun Hongchao, Tong Ding, et al. Sand transportation and reverse patterns over leeward face of sand dune[J]. Geomorphology, 2017,283:41-47.

丁国栋.地表粗糙度的含义本质[J].中国沙漠,1993,3(4):43-47.

Huang Ning, Zheng Xiaojing, Zhou Youhe. A multi-objective optimization method for probability density function of lift-off speed of wind-blown sand movement[J]. Advances in Engineering Software, 2006,37(1):32-40.

Cheng Jianjun, Xin Guowei, Zhi Lingyan, et al. Unloading characteristics of sand-drift in wind-shallow areas along railway and the effect of sand removal by force of wind[J]. Scientific Reports, 2017,7:41462.

Anderson J D. Governing equations of fluid dynamics[M]//Computational fluid dynamics. Springer, Berlin, Heidelberg, 1992:15-51.

熊莉芳,林源,李世武.

k-ε

湍流模型及其在FLUENT软件中的应用[J].工业加热,2007(4):13-15.

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